Team:USyd-Australia/pUS204

From 2014.igem.org

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To construct a reporter gene cassette consisting of aeBlue reporter and gentamicin resistance selective marker, and attC site.  The cassette must be cloned into standard iGEM pSB1C3 backbone with all sequences void of forbidden restriction sites as per iGEM requirements.  The cassette must be easily recovered as a circular product from the backbone for further work.
To construct a reporter gene cassette consisting of aeBlue reporter and gentamicin resistance selective marker, and attC site.  The cassette must be cloned into standard iGEM pSB1C3 backbone with all sequences void of forbidden restriction sites as per iGEM requirements.  The cassette must be easily recovered as a circular product from the backbone for further work.
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Revision as of 10:11, 17 October 2014

iGEM_Link


pUS204 Gene Cassette in pSB1C3 backbone

Aim

To construct a reporter gene cassette consisting of aeBlue reporter and gentamicin resistance selective marker, and attC site. The cassette must be cloned into standard iGEM pSB1C3 backbone with all sequences void of forbidden restriction sites as per iGEM requirements. The cassette must be easily recovered as a circular product from the backbone for further work.




Approach

The BioBrick parts were ordered as a synthetic gBlock from IDT, along with primers to amplify the entire gBlock by PCR. pSB1C3 linearised backbone was amplified by PCR using new primers to re-introduce the full biobrick prefix and suffix. The two parts were joined by restriction-ligation using EcoRI and PstI. The components were assembled as a circular plasmid in the order: pSB1C3 → AttC → aeBlue → aacC1 GmR→ pSB1C3. To retrieve functional cassettes, PCR primers containing compatible but non-identical restriction enzyme sites (XbaI and SpeI) at the end. From PCR products, circular cassettes were generated using Enzymatic Ligation Assisted by Nucleases (ELAN) via the XbaI and SpeI sites.

Materials

  • DNA
    • pSB1C3, linearised - by PCR
    • aeBlue-aacC1 GmR-AttC - gBlock order from IDT
  • Primers
    • pSB1C3 linearisation primers containing edited biobrick prefix and suffix, iGEM1417 and iGEM1418
    • aeBlue-aacC1 GmR-AttC gblock linearisation primers
    • 2 sets of junction primers

Method

Part 1: Design and order gBlock for aeBlue-AttC construct
Part 2: Perform PCR on pSB1C3 linearised backbone (kit
Part 3: Preparation of pSB1C3 backbone by XbaI digestion
Part 4: Gibson Assembly of the three components.

Validation

With thanks to: