Protein
Transcriptional repressor PaaX
Organism
Escherichia coli (strain K12)
Function
Negative regulator of the paaZ and paaABCDEFGHIJK catabolic operons. Binds the consensus sequence 5'-WWTRTGATTCGYGWT-3'. Binding of PaaX is specifically inhibited by phenylacetyl-coenzyme A (PA-CoA).
Similarity
Belongs to the PaaX family.
Sequence
MSKLDTFIQHAVNAVPVSGTSLISSLYGDSLSHRGGEIWLGSLAALLEGLGFGERFVRTALFRLNKEGWLDVSRIGRRSFYSLSDKGLRLTRRAESKIYRAEQPAWDGKWLLLLSEGLDKSTLADVKKQLIWQGFGALAPSLMASPSQKLADVQTLLHEAGVADNVICFEAQIPLALSRAALRARVEECWHLTEQNAMYETFIQSFRPLVPLLKEAADELTPERAFHIQLLLIHFYRRVVLKDPLLPEELLPAHWAGHTARQLCINIYQRVAPAALAFVSEKGETSVGELPAPGSLYFQRFGGLNIEQEALCQFIR