Team:UFAM Brazil/BidirectionalPromoter

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Revision as of 01:27, 17 October 2014

BIDIRECTIONAL PROMOTER

Operon mer

Over the ages, exposure to toxic elements enabled microorganisms to develop highly complex and efficient systems to overcome poisonous environmental conditions.. As an example of those systems, there is an operon (Mer operon), which function is to transform, by enzymatic reduction, mercury Hg2+ into Hg0, its volatile form. Operon Mer has been found in a wide range of bacteria that differ on number of genes involved. Those are usually located on plasmids and chromosomes and normally components of transposons and integrons. Mer operons can have different structure and are constituted by coding sequence of functional protein for regulation (MerR), transport (MerT, MerP and/or MerC, MerF) and reduction (MerA).

Transport: MerT and MerP transporter proteins