Team:UESTC-Software/Validation.html
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</div> | </div> | ||
<div class="parts" style="padding: 20px 50px 20px 100px;"> | <div class="parts" style="padding: 20px 50px 20px 100px;"> | ||
- | <div class="question" id="p2">Validation</div> | + | <div class="question" id="p2">Software Validation</div> |
+ | <p>In order to verify the availability of our software, we used the CRISPR-P and Optimized CRISPR Design these two CRISPR tools, under the condition of the same input sequence, to compare their results with ours.</p> | ||
+ | <p>We use the same input sequence:</p> | ||
+ | <p>TTTGAGGTCAATACAAATCCTATTTCTTGTGGTTTTCTTTCCTTCACTTAGCTATGGATGGTTTATCTTC | ||
+ | ATTTGTTATATTGGATACAAGCTTTGCTACGATCTACATTTGGGAATGTGAGTCTCTTATTGTAACCTTA | ||
+ | GGGTTGGTTTATCTCAAGAATCTTATTAATTGTTTGGACTGTTTATGTTTGGACATTTATTGTCATTCTT<br/>(NC_003070.9,Arabidopsis thaliana ,chromosome 1,211-420)</p> | ||
+ | <p>The output results of CRISPR-P, Optimized CRISPR Design and CRISPR-X respectively are:</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/c/c5/2014-UESTC-Software-Sv1.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/c/c5/2014-UESTC-Software-Sv1.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">CRISPR-P</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/5/58/2014-UESTC-Software-Sv2.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/5/58/2014-UESTC-Software-Sv2.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">Optimized CRISPR Design</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/0/0a/2014-UESTC-Software-Sv3.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/0/0a/2014-UESTC-Software-Sv3.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">CRISPR-X</p> | ||
+ | <p>Comparison:</p> | ||
+ | <h3>(a)The number of sgRNA results</h3> | ||
+ | <p>As we have seen, the number of sgRNA results of three software are all 14, in addition, the 14 sgRNA sequences are all the same(just the rank are different), proves our software’s approach to find sgrna is correct.</p> | ||
+ | <h3>(b)The ranking of sgRNA results</h3> | ||
+ | <p>Since three software have different scoring algorithm, so the rankings are not exactly the same. In addition, for our scoring which contains an efficacy score, so the rank of CRISPR-X and the other two software vary greatly. However, for specific scores, in some degree, the ranking trend of our software and the other two software are similar.</p> | ||
+ | <table width="100%" cellspacing="0px" style="border-collapse:collapse;word-break:break-word;border-color: #c7d3af; | ||
+ | color: #999;"> | ||
+ | <colgroup><col width="243" style="mso-width-source:userset;mso-width-alt:7776;"> | ||
+ | <col width="76" style="mso-width-source:userset;mso-width-alt:2432;"> | ||
+ | <col width="76.07" span="2" style="mso-width-source:userset;mso-width-alt:2434;"> | ||
+ | <col width="91" span="3" style="mso-width-source:userset;mso-width-alt:2912;"> | ||
+ | </colgroup><tbody><tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" width="744.13" colspan="7" style="height:14.25pt;width:558.10pt;border-right:none;border-bottom:none;" x:str="">Species:Arabidopsis thaliana ,location:chromosome 1,211-420</td> | ||
+ | </tr> | ||
+ | <tr height="80" style="height:60.00pt;mso-height-source:userset;mso-height-alt:1200;"> | ||
+ | <td class="xl43" height="80" style="height:60.00pt;" x:str="">Sequence</td> | ||
+ | <td class="xl26" x:str="">Specificity scoe</td> | ||
+ | <td class="xl26" x:str="">Efficacy score</td> | ||
+ | <td class="xl26" x:str="">Total score</td> | ||
+ | <td class="xl44" x:str="">Rank (CRISPR-P)</td> | ||
+ | <td class="xl45" x:str="">Rank (CRISPR - X Specificity)</td> | ||
+ | <td class="xl46" x:str="">Rank (Optimized CRISPR Design)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">TTCCTTCACTTAGCTATGGA<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">49</td> | ||
+ | <td class="xl47" x:num="">15</td> | ||
+ | <td class="xl47" x:num="">64</td> | ||
+ | <td class="xl48" x:num="">1</td> | ||
+ | <td class="xl49" x:str="">1(3)</td> | ||
+ | <td class="xl50" x:num="">5</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">AGTCTCTTATTGTAACCTTA<font class="font5">GGG</font></td> | ||
+ | <td class="xl47" x:num="">48</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">48</td> | ||
+ | <td class="xl48" x:num="">2</td> | ||
+ | <td class="xl49" x:str="">3(8)</td> | ||
+ | <td class="xl50" x:num="">2</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">TCTTATTGTAACCTTAGGGT<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">48</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">48</td> | ||
+ | <td class="xl48" x:num="">3</td> | ||
+ | <td class="xl49" x:str="">4(7)</td> | ||
+ | <td class="xl50" x:num="">1</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">CTTGAGATAAACCAACCCTA<font class="font5">AGG</font></td> | ||
+ | <td class="xl47" x:num="">49</td> | ||
+ | <td class="xl47" x:num="">15</td> | ||
+ | <td class="xl47" x:num="">64</td> | ||
+ | <td class="xl48" x:num="">4</td> | ||
+ | <td class="xl49" x:str="">2(2)</td> | ||
+ | <td class="xl50" x:num="">3</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">GCTTTGCTACGATCTACATT<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">48</td> | ||
+ | <td class="xl47" x:num="">32</td> | ||
+ | <td class="xl47" x:num="">80</td> | ||
+ | <td class="xl48" x:num="">5</td> | ||
+ | <td class="xl49" x:str="">5(1)</td> | ||
+ | <td class="xl50" x:num="">4</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">TTCTTTCCTTCACTTAGCTA<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">47</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">47</td> | ||
+ | <td class="xl48" x:num="">6</td> | ||
+ | <td class="xl49" x:str="">7(9)</td> | ||
+ | <td class="xl50" x:num="">7</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">AACCATCCATAGCTAAGTGA<font class="font5">AGG</font></td> | ||
+ | <td class="xl47" x:num="">48</td> | ||
+ | <td class="xl47" x:num="">15</td> | ||
+ | <td class="xl47" x:num="">63</td> | ||
+ | <td class="xl48" x:num="">7</td> | ||
+ | <td class="xl49" x:str="">6(5)</td> | ||
+ | <td class="xl50" x:num="">6</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">AATACAAATCCTATTTCTTG<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">45</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">45</td> | ||
+ | <td class="xl48" x:num="">8</td> | ||
+ | <td class="xl49" x:str="">8(10)</td> | ||
+ | <td class="xl50" x:num="">9</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">GAGTCTCTTATTGTAACCTT<font class="font5">AGG</font></td> | ||
+ | <td class="xl47" x:num="">45</td> | ||
+ | <td class="xl47" x:num="">17</td> | ||
+ | <td class="xl47" x:num="">63</td> | ||
+ | <td class="xl48" x:num="">9</td> | ||
+ | <td class="xl49" x:str="">9(4)</td> | ||
+ | <td class="xl50" x:num="">8</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">CAAGAATCTTATTAATTGTT<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">43</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">43</td> | ||
+ | <td class="xl48" x:num="">10</td> | ||
+ | <td class="xl49" x:str="">10(11)</td> | ||
+ | <td class="xl50" x:num="">11</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">CTTTGCTACGATCTACATTT<font class="font5">GGG</font></td> | ||
+ | <td class="xl47" x:num="">42</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">42</td> | ||
+ | <td class="xl48" x:num="">11</td> | ||
+ | <td class="xl49" x:str="">11(12)</td> | ||
+ | <td class="xl50" x:num="">10</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">TTGTTTGGACTGTTTATGTT<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">36</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">36</td> | ||
+ | <td class="xl48" x:num="">12</td> | ||
+ | <td class="xl49" x:str="">12(13)</td> | ||
+ | <td class="xl50" x:num="">12</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">TTTATCTTCATTTGTTATAT<font class="font5">TGG</font></td> | ||
+ | <td class="xl47" x:num="">29</td> | ||
+ | <td class="xl47" x:num="">0</td> | ||
+ | <td class="xl47" x:num="">29</td> | ||
+ | <td class="xl48" x:num="">13</td> | ||
+ | <td class="xl49" x:str="">14(14)</td> | ||
+ | <td class="xl50" x:num="">13</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl42" height="19" style="height:14.25pt;" x:str="">GAAAGAAAACCACAAGAAAT<font class="font5">AGG</font></td> | ||
+ | <td class="xl47" x:num="">35</td> | ||
+ | <td class="xl47" x:num="">17</td> | ||
+ | <td class="xl47" x:num="">53</td> | ||
+ | <td class="xl48" x:num="">14</td> | ||
+ | <td class="xl49" x:str="">13(6)</td> | ||
+ | <td class="xl50" x:num="">14</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl51" height="19" colspan="7" style="height:14.25pt;border-right:none;border-bottom:none;" x:str=""><span style="mso-spacerun:yes;"> </span>In parentheses represents the total rank</td> | ||
+ | </tr> | ||
+ | <!--[if supportMisalignedColumns]--> | ||
+ | <tr width="0" style="display:none;"> | ||
+ | <td width="243" style="width:182;"></td> | ||
+ | <td width="76" style="width:57;"></td> | ||
+ | <td width="76" style="width:57;"></td> | ||
+ | <td width="91" style="width:68;"></td> | ||
+ | </tr> | ||
+ | <!--[endif]--> | ||
+ | </tbody></table> | ||
+ | <h3>(c) The position and strand of sgRNA results</h3> | ||
+ | <p>Through our careful comparison, we found that the location information of sgrna of CRISPR-X is exactly the same with CRISPR-P (Optimized CRISPR Design pages doesn’t show the exact location), the results further illustrate the the availability of our software.</p> | ||
+ | <table width="100%" cellspacing="0px" style="border-collapse:collapse;word-break:break-word;border-color: #c7d3af; | ||
+ | color: #999;"> | ||
+ | <colgroup><col width="72" style="width:54.00pt;"> | ||
+ | <col width="190" style="mso-width-source:userset;mso-width-alt:6080;"> | ||
+ | <col width="87" span="3" style="mso-width-source:userset;mso-width-alt:2784;"> | ||
+ | </colgroup><tbody><tr height="44" style="height:33.00pt;mso-height-source:userset;mso-height-alt:660;"> | ||
+ | <td class="xl38" height="44" width="523" colspan="5" style="height:33.00pt;width:392.25pt;border-right:none;border-bottom:none;" x:str="">Species:Arabidopsis thaliana ,location:chromosome 1,211-420</td> | ||
+ | </tr> | ||
+ | <tr height="26.67" style="height:20.00pt;mso-height-source:userset;mso-height-alt:400;"> | ||
+ | <td class="xl25" height="64" colspan="2" rowspan="2" style="height:48.00pt;border-right:none;border-bottom:none;" x:str="">sgRNA sequence</td> | ||
+ | <td class="xl39" colspan="3" style="border-right:none;border-bottom:none;" x:str="">Position, strand</td> | ||
+ | </tr> | ||
+ | <tr height="37.33" style="height:28.00pt;mso-height-source:userset;mso-height-alt:560;"> | ||
+ | <td class="xl41" x:str="">CRISPR-P</td> | ||
+ | <td class="xl36" x:str="">CRISPR-X</td> | ||
+ | <td class="xl33" x:str="" style="background-color:red;border-color: #fff; | ||
+ | color: #fff;">Optimized CRISPR Design</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">TTCCTTCACTTAGCTATGGA<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">249,"+"</td> | ||
+ | <td class="xl36" x:str="">249,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">AGTCTCTTATTGTAACCTTA<font class="font5">GGG</font></td> | ||
+ | <td class="xl41" x:str="">331,"+"</td> | ||
+ | <td class="xl36" x:str="">331,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">TCTTATTGTAACCTTAGGGT<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">335,"+"</td> | ||
+ | <td class="xl36" x:str="">335,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">CTTGAGATAAACCAACCCTA<font class="font5">AGG</font></td> | ||
+ | <td class="xl41" x:str="">346,"-"</td> | ||
+ | <td class="xl36" x:str="">346,"-"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">GCTTTGCTACGATCTACATT<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">301,"+"</td> | ||
+ | <td class="xl36" x:str="">301,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">TTCTTTCCTTCACTTAGCTA<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">245,"+"</td> | ||
+ | <td class="xl36" x:str="">245,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">AACCATCCATAGCTAAGTGA<font class="font5">AGG</font></td> | ||
+ | <td class="xl41" x:str="">251,"-"</td> | ||
+ | <td class="xl36" x:str="">251,"-"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">AATACAAATCCTATTTCTTG<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">220,"+"</td> | ||
+ | <td class="xl36" x:str="">220,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">GAGTCTCTTATTGTAACCTT<font class="font5">AGG</font></td> | ||
+ | <td class="xl41" x:str="">330,"+"</td> | ||
+ | <td class="xl36" x:str="">330,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">CAAGAATCTTATTAATTGTT<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">365,"+"</td> | ||
+ | <td class="xl36" x:str="">365,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">CTTTGCTACGATCTACATTT<font class="font5">GGG</font></td> | ||
+ | <td class="xl41" x:str="">302,"+"</td> | ||
+ | <td class="xl36" x:str="">302,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">TTGTTTGGACTGTTTATGTT<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">380,"+"</td> | ||
+ | <td class="xl36" x:str="">380,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">TTTATCTTCATTTGTTATAT<font class="font5">TGG</font></td> | ||
+ | <td class="xl41" x:str="">272,"+"</td> | ||
+ | <td class="xl36" x:str="">272,"+"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" colspan="2" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">GAAAGAAAACCACAAGAAAT<font class="font5">AGG</font></td> | ||
+ | <td class="xl41" x:str="">229,"-"</td> | ||
+ | <td class="xl36" x:str="">229,"-"</td> | ||
+ | <td class="xl37" x:str="">/</td> | ||
+ | </tr> | ||
+ | <!--[if supportMisalignedColumns]--> | ||
+ | <tr width="0" style="display:none;"> | ||
+ | <td width="190" style="width:143;"></td> | ||
+ | <td width="87" style="width:65;"></td> | ||
+ | </tr> | ||
+ | <!--[endif]--> | ||
+ | </tbody></table> | ||
+ | <p>For example, the comparison figure of the sgRNA of ranking 3rd and 12th (in CRISPR-P):</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/b/b4/2014-UESTC-Software-Sv4.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/b/b4/2014-UESTC-Software-Sv4.jpg"></a> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/thumb/2/2c/2014-UESTC-Software-Sv5.jpg/800px-2014-UESTC-Software-Sv5.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/thumb/2/2c/2014-UESTC-Software-Sv5.jpg/800px-2014-UESTC-Software-Sv5.jpg"></a> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/5/5d/2014-UESTC-Software-Sv6.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/5/5d/2014-UESTC-Software-Sv6.jpg"></a> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/2/27/2014-UESTC-Software-Sv7.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/2/27/2014-UESTC-Software-Sv7.jpg"></a> | ||
+ | <h3>(d)The number of off-target sites(PAM is NGG) of sgRNA results</h3> | ||
+ | <p>To verify the availability of a CRISPR software, the correctness of identifying potential off-target number is a very important indicator. For the number of off-target sites for 14 sgRNA, we draw the following table for statistical analysis (here, we only count off-target sites of the PAM is NGG, because the total number of off-target sites of the other two software are inconsistent, although we can find the number of off-target sites containing PAM is NGG and NAG).</p> | ||
+ | <table width="100%" cellspacing="0px" style="border-collapse:collapse;word-break:break-word;border-color: #c7d3af; | ||
+ | color: #999;"> | ||
+ | <colgroup><col width="268" style="mso-width-source:userset;mso-width-alt:8576;"> | ||
+ | <col width="72" span="3" style="width:54.00pt;"> | ||
+ | <col width="96.07" span="2" style="mso-width-source:userset;mso-width-alt:3074;"> | ||
+ | <col width="96" style="mso-width-source:userset;mso-width-alt:3072;"> | ||
+ | </colgroup><tbody><tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" width="772.13" colspan="7" style="height:14.25pt;width:579.10pt;border-right:none;border-bottom:none;" x:str="">Species:Arabidopsis thaliana ,location:chromosome 1,211-420</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl24" height="76" rowspan="2" style="height:57.00pt;border-right:none;border-bottom:none;" x:str="">sgRNA sequence</td> | ||
+ | <td class="xl25" rowspan="2" style="border-right:none;border-bottom:none;" x:str="">Specificity scoe</td> | ||
+ | <td class="xl25" rowspan="2" style="border-right:none;border-bottom:none;" x:str="">Efficacy score</td> | ||
+ | <td class="xl25" rowspan="2" style="border-right:none;border-bottom:none;" x:str="">Total score</td> | ||
+ | <td class="xl26" colspan="3" style="border-right:none;border-bottom:none;" x:str="">Number of off-target sites(PAM is NGG)</td> | ||
+ | </tr> | ||
+ | <tr height="57" style="height:42.75pt;"> | ||
+ | <td class="xl30" x:str="" style="mso-style-parent: style0; | ||
+ | text-align: center; | ||
+ | vertical-align: middle; | ||
+ | white-space: normal; | ||
+ | mso-pattern: auto none; | ||
+ | background: red; | ||
+ | color: #FFFFFF; | ||
+ | font-family: Arial;">CRISPR-X</td> | ||
+ | <td class="xl31" x:str="">CRISPR-P</td> | ||
+ | <td class="xl32" x:str="">Optimized CRISPR Design</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">TTCCTTCACTTAGCTATGGA<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">49</td> | ||
+ | <td class="xl33" x:num="">15</td> | ||
+ | <td class="xl33" x:num="">64</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">3</td> | ||
+ | <td class="xl35" x:str="">3(4)</td> | ||
+ | <td class="xl36" x:str="">3(12)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">AGTCTCTTATTGTAACCTTA<font class="font4">GGG</font></td> | ||
+ | <td class="xl33" x:num="">48</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">48</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">4</td> | ||
+ | <td class="xl35" x:str="">4(4)</td> | ||
+ | <td class="xl36" x:str="">4(10)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">TCTTATTGTAACCTTAGGGT<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">48</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">48</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">3</td> | ||
+ | <td class="xl35" x:str="">3(5)</td> | ||
+ | <td class="xl36" x:str="">3(7)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">CTTGAGATAAACCAACCCTA<font class="font4">AGG</font></td> | ||
+ | <td class="xl33" x:num="">49</td> | ||
+ | <td class="xl33" x:num="">15</td> | ||
+ | <td class="xl33" x:num="">64</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">3</td> | ||
+ | <td class="xl35" x:str="">3(7)</td> | ||
+ | <td class="xl36" x:str="">3(10)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">GCTTTGCTACGATCTACATT<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">48</td> | ||
+ | <td class="xl33" x:num="">32</td> | ||
+ | <td class="xl33" x:num="">80</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">5</td> | ||
+ | <td class="xl35" x:str="">5(6)</td> | ||
+ | <td class="xl36" x:str="">5(11)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">TTCTTTCCTTCACTTAGCTA<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">47</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">47</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">9</td> | ||
+ | <td class="xl35" x:str="">9(16)</td> | ||
+ | <td class="xl36" x:str="">9(31)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">AACCATCCATAGCTAAGTGA<font class="font4">AGG</font></td> | ||
+ | <td class="xl33" x:num="">48</td> | ||
+ | <td class="xl33" x:num="">15</td> | ||
+ | <td class="xl33" x:num="">63</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">5</td> | ||
+ | <td class="xl35" x:str="">5(11)</td> | ||
+ | <td class="xl36" x:str="">5(14)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">AATACAAATCCTATTTCTTG<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">45</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">45</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">13</td> | ||
+ | <td class="xl35" x:str="">13(17)</td> | ||
+ | <td class="xl36" x:str="">13(33)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">GAGTCTCTTATTGTAACCTT<font class="font4">AGG</font></td> | ||
+ | <td class="xl33" x:num="">45</td> | ||
+ | <td class="xl33" x:num="">17</td> | ||
+ | <td class="xl33" x:num="">63</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">8</td> | ||
+ | <td class="xl35" x:str="">8(11)</td> | ||
+ | <td class="xl36" x:str="">8(17)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">CAAGAATCTTATTAATTGTT<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">43</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">43</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">21</td> | ||
+ | <td class="xl35" x:str="">/(35)</td> | ||
+ | <td class="xl36" x:str="">21(57)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">CTTTGCTACGATCTACATTT<font class="font4">GGG</font></td> | ||
+ | <td class="xl33" x:num="">42</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">42</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">17</td> | ||
+ | <td class="xl35" x:str="">17(18)</td> | ||
+ | <td class="xl36" x:str="">17(22)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">TTGTTTGGACTGTTTATGTT<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">36</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">36</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">37</td> | ||
+ | <td class="xl35" x:str="">/(48)</td> | ||
+ | <td class="xl36" x:str="">/(70)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">TTTATCTTCATTTGTTATAT<font class="font4">TGG</font></td> | ||
+ | <td class="xl33" x:num="">29</td> | ||
+ | <td class="xl33" x:num="">0</td> | ||
+ | <td class="xl33" x:num="">29</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">57</td> | ||
+ | <td class="xl35" x:str="">/(96)</td> | ||
+ | <td class="xl36" x:str="">/(157)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl22" height="19" style="height:14.25pt;" x:str="">GAAAGAAAACCACAAGAAAT<font class="font4">AGG</font></td> | ||
+ | <td class="xl33" x:num="">35</td> | ||
+ | <td class="xl33" x:num="">17</td> | ||
+ | <td class="xl33" x:num="">53</td> | ||
+ | <td class="xl34" x:num="" style="color:#fff">44</td> | ||
+ | <td class="xl35" x:str="">/(94)</td> | ||
+ | <td class="xl36" x:str="">/(158)</td> | ||
+ | </tr> | ||
+ | <tr height="19" style="height:14.25pt;"> | ||
+ | <td class="xl24" height="19" colspan="7" style="height:14.25pt;border-right:none;border-bottom:none;" x:str="">/ represents unknown, in parentheses represents the total number(including NAG and NGG)</td> | ||
+ | </tr> | ||
+ | <!--[if supportMisalignedColumns]--> | ||
+ | <tr width="0" style="display:none;"> | ||
+ | <td width="268" style="width:201;"></td> | ||
+ | <td width="96" style="width:72;"></td> | ||
+ | <td width="96" style="width:72;"></td> | ||
+ | </tr> | ||
+ | <!--[endif]--> | ||
+ | </tbody></table> | ||
+ | <p>Since CRISPR-P's results page displays only 20 off-target sites, Optimized CRISPR Design’s results page displays only 50 off-target sites, so we can see from the table: For the previous 11 sgRNA, the number of our software’s NGG off-target sites are exactly the same with the other two software. This result can be a strong evidence for the availability of our software.</p> | ||
+ | <p>For example, the comparison figure of the sgRNA of ranking 5rd (in CRISPR-P):</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/0/0d/2014-UESTC-Software-Sv8.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/0/0d/2014-UESTC-Software-Sv8.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">CRISPR-P-------5 NGG off-target sites</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/9/9d/2014-UESTC-Software-Sv9.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/9/9d/2014-UESTC-Software-Sv9.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">CRISPR-X------5 NGG off-target sites</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/b/bb/2014-UESTC-Software-Sv10.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/b/bb/2014-UESTC-Software-Sv10.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">Optimized CRISPR Design ------5 NGG off-target sites</p> | ||
+ | <p>The comparison figure of the sgRNA of ranking 9th (in CRISPR-P):</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/9/9d/2014-UESTC-Software-Sv11.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/9/9d/2014-UESTC-Software-Sv11.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">CRISPR-P-------8 NGG off-target sites</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/6/64/2014-UESTC-Software-Sv12.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/6/64/2014-UESTC-Software-Sv12.jpg"></a> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/f/fa/2014-UESTC-Software-Sv13.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/f/fa/2014-UESTC-Software-Sv13.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">CRISPR-X------8 NGG off-target sites</p> | ||
+ | <a href="https://static.igem.org/mediawiki/2014/8/84/2014-UESTC-Software-Sv14.jpg" target="_blank"><img src="https://static.igem.org/mediawiki/2014/8/84/2014-UESTC-Software-Sv14.jpg"></a> | ||
+ | <p style="font-size: 14px;text-align: center;font-weight: 900;margin: 0 auto 20px;">Optimized CRISPR Design ------8 NGG off-target sites</p> | ||
+ | |||
+ | <p>In summary, in the case of the same input sequence, the output sgRNA results of our software have the same number of the output sgRNA, the same sequence information, the same location information and the same NGG off-target sites with the other two CRISPR design tools—CRISPR-P and Optimized CRISPR Design. Therefore, our software—CRISPR-X, is valid and available.</p> | ||
+ | |||
+ | </div> | ||
+ | <div class="parts" style="padding: 20px 50px 20px 100px;"> | ||
+ | <div class="question" id="p3">Algorithm Validation</div> | ||
<p>In order to confirm our software is consistent with the experimental results, we use the experimental data on the MLE Cleavage with the different mismatches, and we compare our scoring results to corresponding to the experimental data, in addition find the correlation coefficient of them.</p> | <p>In order to confirm our software is consistent with the experimental results, we use the experimental data on the MLE Cleavage with the different mismatches, and we compare our scoring results to corresponding to the experimental data, in addition find the correlation coefficient of them.</p> | ||
<h2>(A)Single mismatch</h2> | <h2>(A)Single mismatch</h2> | ||
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Revision as of 18:11, 16 October 2014
Validation
1 Notation
n Number of candidate sgRNAs
nh Number of hits in cache
nm Number of misses in cache
nt System will only output nt results
m Number of possible-o_target sgRNAs
l Length of sgRNA
tcd Time cost on connecting database
trd Approximate time cost on one database operation
2 Analysis
1. System will connect to Database, which costs tcd.
2. Retrieve data from database, which costs trd* (n + m).
3. System calculate each n candidate sgRNAs' scores. For nh sgRNAs which has already calculated before, system will cost only O(nh). For nm others, system will calculate the scores. According to our algorithm, those sgRNAs will compare every m possible- o_target sgRNAs. In each comparison, algorithm compare all l nucleobase, make a little adds and multiplies, package result to strings and save strings to database. All nm calculation will cost nm* (m*l + trd).
4. System will sort all n result, which cost O(n log2 n).
5. Output result costs O(nt).
3 Run Time
tcd + trd* (n + m) + O(nh) + nm* (m* l + trd) + O(n log2 n) + O(nt)
In order to verify the availability of our software, we used the CRISPR-P and Optimized CRISPR Design these two CRISPR tools, under the condition of the same input sequence, to compare their results with ours.
We use the same input sequence:
TTTGAGGTCAATACAAATCCTATTTCTTGTGGTTTTCTTTCCTTCACTTAGCTATGGATGGTTTATCTTC
ATTTGTTATATTGGATACAAGCTTTGCTACGATCTACATTTGGGAATGTGAGTCTCTTATTGTAACCTTA
GGGTTGGTTTATCTCAAGAATCTTATTAATTGTTTGGACTGTTTATGTTTGGACATTTATTGTCATTCTT
(NC_003070.9,Arabidopsis thaliana ,chromosome 1,211-420)
The output results of CRISPR-P, Optimized CRISPR Design and CRISPR-X respectively are:
![](https://static.igem.org/mediawiki/2014/c/c5/2014-UESTC-Software-Sv1.jpg)
CRISPR-P
![](https://static.igem.org/mediawiki/2014/5/58/2014-UESTC-Software-Sv2.jpg)
Optimized CRISPR Design
![](https://static.igem.org/mediawiki/2014/0/0a/2014-UESTC-Software-Sv3.jpg)
CRISPR-X
Comparison:
(a)The number of sgRNA results
As we have seen, the number of sgRNA results of three software are all 14, in addition, the 14 sgRNA sequences are all the same(just the rank are different), proves our software’s approach to find sgrna is correct.
(b)The ranking of sgRNA results
Since three software have different scoring algorithm, so the rankings are not exactly the same. In addition, for our scoring which contains an efficacy score, so the rank of CRISPR-X and the other two software vary greatly. However, for specific scores, in some degree, the ranking trend of our software and the other two software are similar.
Species:Arabidopsis thaliana ,location:chromosome 1,211-420 | ||||||
Sequence | Specificity scoe | Efficacy score | Total score | Rank (CRISPR-P) | Rank (CRISPR - X Specificity) | Rank (Optimized CRISPR Design) |
TTCCTTCACTTAGCTATGGATGG | 49 | 15 | 64 | 1 | 1(3) | 5 |
AGTCTCTTATTGTAACCTTAGGG | 48 | 0 | 48 | 2 | 3(8) | 2 |
TCTTATTGTAACCTTAGGGTTGG | 48 | 0 | 48 | 3 | 4(7) | 1 |
CTTGAGATAAACCAACCCTAAGG | 49 | 15 | 64 | 4 | 2(2) | 3 |
GCTTTGCTACGATCTACATTTGG | 48 | 32 | 80 | 5 | 5(1) | 4 |
TTCTTTCCTTCACTTAGCTATGG | 47 | 0 | 47 | 6 | 7(9) | 7 |
AACCATCCATAGCTAAGTGAAGG | 48 | 15 | 63 | 7 | 6(5) | 6 |
AATACAAATCCTATTTCTTGTGG | 45 | 0 | 45 | 8 | 8(10) | 9 |
GAGTCTCTTATTGTAACCTTAGG | 45 | 17 | 63 | 9 | 9(4) | 8 |
CAAGAATCTTATTAATTGTTTGG | 43 | 0 | 43 | 10 | 10(11) | 11 |
CTTTGCTACGATCTACATTTGGG | 42 | 0 | 42 | 11 | 11(12) | 10 |
TTGTTTGGACTGTTTATGTTTGG | 36 | 0 | 36 | 12 | 12(13) | 12 |
TTTATCTTCATTTGTTATATTGG | 29 | 0 | 29 | 13 | 14(14) | 13 |
GAAAGAAAACCACAAGAAATAGG | 35 | 17 | 53 | 14 | 13(6) | 14 |
In parentheses represents the total rank |
(c) The position and strand of sgRNA results
Through our careful comparison, we found that the location information of sgrna of CRISPR-X is exactly the same with CRISPR-P (Optimized CRISPR Design pages doesn’t show the exact location), the results further illustrate the the availability of our software.
Species:Arabidopsis thaliana ,location:chromosome 1,211-420 | ||||
sgRNA sequence | Position, strand | |||
CRISPR-P | CRISPR-X | Optimized CRISPR Design | ||
TTCCTTCACTTAGCTATGGATGG | 249,"+" | 249,"+" | / | |
AGTCTCTTATTGTAACCTTAGGG | 331,"+" | 331,"+" | / | |
TCTTATTGTAACCTTAGGGTTGG | 335,"+" | 335,"+" | / | |
CTTGAGATAAACCAACCCTAAGG | 346,"-" | 346,"-" | / | |
GCTTTGCTACGATCTACATTTGG | 301,"+" | 301,"+" | / | |
TTCTTTCCTTCACTTAGCTATGG | 245,"+" | 245,"+" | / | |
AACCATCCATAGCTAAGTGAAGG | 251,"-" | 251,"-" | / | |
AATACAAATCCTATTTCTTGTGG | 220,"+" | 220,"+" | / | |
GAGTCTCTTATTGTAACCTTAGG | 330,"+" | 330,"+" | / | |
CAAGAATCTTATTAATTGTTTGG | 365,"+" | 365,"+" | / | |
CTTTGCTACGATCTACATTTGGG | 302,"+" | 302,"+" | / | |
TTGTTTGGACTGTTTATGTTTGG | 380,"+" | 380,"+" | / | |
TTTATCTTCATTTGTTATATTGG | 272,"+" | 272,"+" | / | |
GAAAGAAAACCACAAGAAATAGG | 229,"-" | 229,"-" | / |
For example, the comparison figure of the sgRNA of ranking 3rd and 12th (in CRISPR-P):
![](https://static.igem.org/mediawiki/2014/b/b4/2014-UESTC-Software-Sv4.jpg)
![](https://static.igem.org/mediawiki/2014/thumb/2/2c/2014-UESTC-Software-Sv5.jpg/800px-2014-UESTC-Software-Sv5.jpg)
![](https://static.igem.org/mediawiki/2014/5/5d/2014-UESTC-Software-Sv6.jpg)
![](https://static.igem.org/mediawiki/2014/2/27/2014-UESTC-Software-Sv7.jpg)
(d)The number of off-target sites(PAM is NGG) of sgRNA results
To verify the availability of a CRISPR software, the correctness of identifying potential off-target number is a very important indicator. For the number of off-target sites for 14 sgRNA, we draw the following table for statistical analysis (here, we only count off-target sites of the PAM is NGG, because the total number of off-target sites of the other two software are inconsistent, although we can find the number of off-target sites containing PAM is NGG and NAG).
Species:Arabidopsis thaliana ,location:chromosome 1,211-420 | ||||||
sgRNA sequence | Specificity scoe | Efficacy score | Total score | Number of off-target sites(PAM is NGG) | ||
CRISPR-X | CRISPR-P | Optimized CRISPR Design | ||||
TTCCTTCACTTAGCTATGGATGG | 49 | 15 | 64 | 3 | 3(4) | 3(12) |
AGTCTCTTATTGTAACCTTAGGG | 48 | 0 | 48 | 4 | 4(4) | 4(10) |
TCTTATTGTAACCTTAGGGTTGG | 48 | 0 | 48 | 3 | 3(5) | 3(7) |
CTTGAGATAAACCAACCCTAAGG | 49 | 15 | 64 | 3 | 3(7) | 3(10) |
GCTTTGCTACGATCTACATTTGG | 48 | 32 | 80 | 5 | 5(6) | 5(11) |
TTCTTTCCTTCACTTAGCTATGG | 47 | 0 | 47 | 9 | 9(16) | 9(31) |
AACCATCCATAGCTAAGTGAAGG | 48 | 15 | 63 | 5 | 5(11) | 5(14) |
AATACAAATCCTATTTCTTGTGG | 45 | 0 | 45 | 13 | 13(17) | 13(33) |
GAGTCTCTTATTGTAACCTTAGG | 45 | 17 | 63 | 8 | 8(11) | 8(17) |
CAAGAATCTTATTAATTGTTTGG | 43 | 0 | 43 | 21 | /(35) | 21(57) |
CTTTGCTACGATCTACATTTGGG | 42 | 0 | 42 | 17 | 17(18) | 17(22) |
TTGTTTGGACTGTTTATGTTTGG | 36 | 0 | 36 | 37 | /(48) | /(70) |
TTTATCTTCATTTGTTATATTGG | 29 | 0 | 29 | 57 | /(96) | /(157) |
GAAAGAAAACCACAAGAAATAGG | 35 | 17 | 53 | 44 | /(94) | /(158) |
/ represents unknown, in parentheses represents the total number(including NAG and NGG) |
Since CRISPR-P's results page displays only 20 off-target sites, Optimized CRISPR Design’s results page displays only 50 off-target sites, so we can see from the table: For the previous 11 sgRNA, the number of our software’s NGG off-target sites are exactly the same with the other two software. This result can be a strong evidence for the availability of our software.
For example, the comparison figure of the sgRNA of ranking 5rd (in CRISPR-P):
![](https://static.igem.org/mediawiki/2014/0/0d/2014-UESTC-Software-Sv8.jpg)
CRISPR-P-------5 NGG off-target sites
![](https://static.igem.org/mediawiki/2014/9/9d/2014-UESTC-Software-Sv9.jpg)
CRISPR-X------5 NGG off-target sites
![](https://static.igem.org/mediawiki/2014/b/bb/2014-UESTC-Software-Sv10.jpg)
Optimized CRISPR Design ------5 NGG off-target sites
The comparison figure of the sgRNA of ranking 9th (in CRISPR-P):
![](https://static.igem.org/mediawiki/2014/9/9d/2014-UESTC-Software-Sv11.jpg)
CRISPR-P-------8 NGG off-target sites
![](https://static.igem.org/mediawiki/2014/6/64/2014-UESTC-Software-Sv12.jpg)
![](https://static.igem.org/mediawiki/2014/f/fa/2014-UESTC-Software-Sv13.jpg)
CRISPR-X------8 NGG off-target sites
![](https://static.igem.org/mediawiki/2014/8/84/2014-UESTC-Software-Sv14.jpg)
Optimized CRISPR Design ------8 NGG off-target sites
In summary, in the case of the same input sequence, the output sgRNA results of our software have the same number of the output sgRNA, the same sequence information, the same location information and the same NGG off-target sites with the other two CRISPR design tools—CRISPR-P and Optimized CRISPR Design. Therefore, our software—CRISPR-X, is valid and available.
In order to confirm our software is consistent with the experimental results, we use the experimental data on the MLE Cleavage with the different mismatches, and we compare our scoring results to corresponding to the experimental data, in addition find the correlation coefficient of them.
(A)Single mismatch
First, we use aggregate data from single-mismatch guide RNAs for 15 EMX1 targets in literature [1] (It’s relation figure is figure 2C, heat map for relative SpCas9 cleavage efficiency for each possible RNA: DNA base pair).
![](https://static.igem.org/mediawiki/2014/b/bd/2014-UESTC-Software-Vp1.jpg)
Heat map for relative SpCas9 cleavage efficiency for each possible RNA:DNA base pair
We use this set of data to determine the relationship between our software score with the MLE Cleavage for single mismatch position. MATLAB program is shown below:
data=load('E:\matlab\work\igem_data.mat'); [m n]=size(data.dataigem); for i=1:n ave(i)=mean(data.dataigem(:,i)); end M=[0,0,0.014,0,0,0.395,0.317,0,0.389,0.079,0.445,0.508,0.613,0.851,0.732,0.828,0.615,0.804,0.685,0.583]; for j=2:20 S(j-1)=(4*exp(1-M(j)))/((4*j+19)/19); end x=19:-1:1; figure(1);%title('Single mismatch,correlation coefficient=0.8840'); subplot(1,2,1); stem(x,ave); title('The relaition between the single mismatch location and cleavage activity '); xlabel('location/nt');ylabel('cleavage activity'); subplot(1,2,2); stem(x,S,'g'); title('The figure of the single mismatch location and mismatch score '); xlabel('location/nt');ylabel('score'); figure(2); plot(x,ave,'b',x,S,'r'); legend('mismatch cleavage activity','mismatch score'); title('The contrast figure of the single mismatch cleavage activity and mismatch score '); xlabel('location/nt');ylabel('amplitude'); p=polyfit(ave,S,1) y=p(1)*ave+p(2);%Fitting equation of the straight line figure(3); plot(ave,S,'b',ave,y,'r'); title('The relation of the single mismatch location and mismatch score '); xlabel('Mismatch cleavage activity');ylabel('Mismatch score'); legend('Relation curve','Fitting straight line'); R=corrcoef(ave,S)%find the correlation coefficient
The result and figures are:
![](https://static.igem.org/mediawiki/2014/b/b7/2014-UESTC-Software-Vp2.jpg)
![](https://static.igem.org/mediawiki/2014/e/ed/2014-UESTC-Software-Vp3.jpg)
![](https://static.igem.org/mediawiki/2014/f/f0/2014-UESTC-Software-Vp4.jpg)
![](https://static.igem.org/mediawiki/2014/9/9c/2014-UESTC-Software-Vp5.jpg)
Therefore, the correlation coefficient between the single mismatch cleavage activity and CRISPR-X mismatch score is 0.8840. And the fitting equation of the straight line is: Y=0.1872*X+0.0987. (X stands for mismatch score).
(B) Multiple mismatches
We next explored the effect between multiple base mismatches on SpCas9 target activity and our mismatch score. We use data of sets of guide RNAs that contained varying combinations of mismatches to investigate the effect of mismatch number, position and spacing on SpCas9 target cleavage activity for four targets within the EMX1 gene. [1]
![](https://static.igem.org/mediawiki/2014/c/cc/2014-UESTC-Software-Vp6.jpg)
SpCas9 target cleavage activity for multiple mismatches [1]
(a) Two concatenated mismatches
MATLAB program is shown below:
data=load('E:\matlab\work\data2misc.mat'); [m n]=size(data.data2misc); for i=1:n ave(i)=mean(data.data2misc(:,i)); end N=[19 20;17 18;15 16;13 14;11 12;9 10;7 8;5 6;3 4]; M=[0,0,0.014,0,0,0.395,0.317,0,0.389,0.079,0.445,0.508,0.613,0.851,0.732,0.828,0.615,0.804,0.685,0.583]; for j=1:n d0(j)=mean(N(j,:)); S(j)=(exp(1-M(N(j,1)))+exp(1-M(N(j,2))))/((4*d0(j)+19)/19); end x=1:n; subplot(1,2,1); stem(x,ave); title('The two concatenated mismatches cleavage activity '); xlabel('The serial number');ylabel('cleavage activity'); subplot(1,2,2); stem(x,S,'g'); title('The two concatenated mismatches score '); xlabel('The serial number');ylabel('score'); p=polyfit(S,ave,1) y=p(1)*S+p(2);%Fitting equation of the straight line figure(2); plot(S,ave,'b',S,y,'r'); title('The relation of the two concatenated mismatches cleavage activity and mismatch score '); xlabel('Mismatch score');ylabel('Mismatch cleavage activity'); legend('Relation curve','Fitting straight line'); R=corrcoef(ave,S)
The result and figures are:
![](https://static.igem.org/mediawiki/2014/e/e3/2014-UESTC-Software-Vp7.jpg)
![](https://static.igem.org/mediawiki/2014/c/cc/2014-UESTC-Software-Vp8.jpg)
![](https://static.igem.org/mediawiki/2014/8/8a/2014-UESTC-Software-Vp9.jpg)
Therefore, the correlation coefficient between the two concatenated mismatches cleavage activity and CRISPR-X mismatch score is 0.8902. And the fitting equation of the straight line is: Y=0.0445*X-0.0103. (X stands for mismatch score).
(b) Two interspaced mismatches
MATLAB program is shown below:
data=load('E:\matlab\work\data2misi.mat'); [m n]=size(data.data2misi); for i=1:n ave(i)=mean(data.data2misi(:,i)); end N=[18 20;15 20;11 20;6 20;1 20;16 18;13 18;9 18;4 18;14 16;11 16;7 16;2 16]; M=[0,0,0.014,0,0,0.395,0.317,0,0.389,0.079,0.445,0.508,0.613,0.851,0.732,0.828,0.615,0.804,0.685,0.583]; for j=1:n d0(j)=mean(N(j,:)); S(j)=(exp(1-M(N(j,1)))+exp(1-M(N(j,2))))/((4*d0(j)+19)/19); end x=1:n; subplot(1,2,1); stem(x,ave); title('The two interspaced mismatches cleavage activity '); xlabel('The serial number');ylabel('cleavage activity'); subplot(1,2,2); stem(x,S,'g'); title('The two interspaced mismatches score '); xlabel('The serial number');ylabel('score'); p=polyfit(S,ave,1) y=p(1)*S+p(2);%Fitting equation of the straight line figure(2); plot(S,ave,'b',S,y,'r'); title('The relation of the two interspaced mismatches cleavage activity and mismatch score '); xlabel('Mismatch score');ylabel('Mismatch cleavage activity'); legend('Relation curve','Fitting straight line'); R=corrcoef(ave,S)
The result and figures are:
![](https://static.igem.org/mediawiki/2014/7/73/2014-UESTC-Software-Vp10.jpg)
![](https://static.igem.org/mediawiki/2014/0/06/2014-UESTC-Software-Vp11.jpg)
![](https://static.igem.org/mediawiki/2014/1/1c/2014-UESTC-Software-Vp12.jpg)
Therefore, the correlation coefficient between the two interspaced mismatches cleavage activity and CRISPR-X mismatch score is 0.7688. And the fitting equation of the straight line is: Y=0.0866*X-0.0353. (X stands for mismatch score).
(c) Three concatenated mismatches
MATLAB program is shown below:
data=load('E:\matlab\work\data3misc.mat'); [m n]=size(data.data3misc); for i=1:n ave(i)=mean(data.data3misc(:,i)); end N=[17 18 19;14 15 16;11 12 13;8 9 10;5 6 7;2 3 4]; M=[0,0,0.014,0,0,0.395,0.317,0,0.389,0.079,0.445,0.508,0.613,0.851,0.732,0.828,0.615,0.804,0.685,0.583]; for j=1:n d0(j)=mean(N(j,:)); S(j)=4/9*(exp(1-M(N(j,1)))+exp(1-M(N(j,2)))+exp(1-M(N(j,3))))/((4*d0(j)+19)/19); end x=1:n; subplot(1,2,1); stem(x,ave); title('The three concatenated mismatches cleavage activity '); xlabel('The serial number');ylabel('cleavage activity'); subplot(1,2,2); stem(x,S,'g'); title('The three concatenated mismatches score '); xlabel('The serial number');ylabel('score'); p=polyfit(S,ave,1) y=p(1)*S+p(2);%Fitting equation of the straight line figure(2); plot(S,ave,'b',S,y,'r'); title('The relation of the three concatenated mismatches cleavage activity and mismatch score '); xlabel('Mismatch score');ylabel('Mismatch cleavage activity'); legend('Relation curve','Fitting straight line'); R=corrcoef(ave,S)
The result and figures are:
![](https://static.igem.org/mediawiki/2014/e/e9/2014-UESTC-Software-Vp13.jpg)
![](https://static.igem.org/mediawiki/2014/9/9d/2014-UESTC-Software-Vp14.jpg)
![](https://static.igem.org/mediawiki/2014/7/75/2014-UESTC-Software-Vp15.jpg)
Therefore, the correlation coefficient between the three concatenated mismatches cleavage activity and CRISPR-X mismatch score is 0.8560. And the fitting equation of the straight line is: Y=0.0175*X-0.0082. (X stands for mismatch score).
(d) Three interspaced mismatches
MATLAB program is shown below:
data=load('E:\matlab\work\data3misi.mat'); [m n]=size(data.data3misi); for i=1:n ave(i)=mean(data.data3misi(:,i)); end N=[16 18 20;14 17 20;12 16 20;10 15 20;14 16 18;12 15 18;10 14 18;8 13 18];%The matrix element represents the position of the sgrna M=[0,0,0.014,0,0,0.395,0.317,0,0.389,0.079,0.445,0.508,0.613,0.851,0.732,0.828,0.615,0.804,0.685,0.583];%The weight of each position for j=1:n d0(j)=mean(N(j,:)); S(j)=4/9*(exp(1-M(N(j,1)))+exp(1-M(N(j,2)))+exp(1-M(N(j,3))))/((4*d0(j)+19)/19);%Find the Smm end x=1:n; subplot(1,2,1); stem(x,ave); title('The three interspaced mismatches cleavage activity '); xlabel('The serial number');ylabel('cleavage activity'); subplot(1,2,2); stem(x,S,'g'); title('The three interspaced mismatches score '); xlabel('The serial number');ylabel('score'); p=polyfit(S,ave,1) y=p(1)*S+p(2);%Fitting equation of the straight line figure(2); plot(S,ave,'b',S,y,'r'); title('The relation of the three interspaced mismatches cleavage activity and mismatch score '); xlabel('Mismatch score');ylabel('Mismatch cleavage activity'); legend('Relation curve','Fitting straight line'); R=corrcoef(ave,S)%Find the the correlation coefficient
The result and figures are:
![](https://static.igem.org/mediawiki/2014/f/fd/2014-UESTC-Software-Vp16.jpg)
![](https://static.igem.org/mediawiki/2014/5/56/2014-UESTC-Software-Vp17.jpg)
![](https://static.igem.org/mediawiki/2014/f/f2/2014-UESTC-Software-Vp18.jpg)
Therefore, the correlation coefficient between the three interspaced mismatches cleavage activity and CRISPR-X mismatch score is 0.6092. And the fitting equation of the straight line is: Y=0.0065*X-0.0018. (X stands for mismatch score).
In summary, the correlation coefficient of the above-mentioned five different conditions (single mismatch, two concatenated mismatches, two interspaced mismatches, three concatenated mismatches and three interspaced mismatches) respectively are: 0.8840, 0.8902, 0.7688, 0.8566, and 0.6092. The correlation coefficients are all over 0.6, and three correlation coefficients are over 0.85. In some extent, this result demonstrated the validity and availability of our scoring algorithm.
- Reference:
- [1] DNA targeting specificity of RNA-guided Cas9 nucleases, Hsu et al, 2013
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