Protein
HTH-type transcriptional regulator MetR
Organism
Escherichia coli (strain K12)
Function
Control of the last step in methionine biosynthesis; MetR is a positive activator of the metA, metE and metH genes. MetR is also a negative regulator of its own expression. Binds homocysteine as an inducer.
Similarity
Belongs to the LysR transcriptional regulatory family.
Sequence
MIEVKHLKTLQALRNCGSLAAAAATLHQTQSALSHQFSDLEQRLGFRLFVRKSQPLRFTPQGEILLQLANQVLPQISQALQACNEPQQTRLRIAIECHSCIQWLTPALENFHKNWPQVEMDFKSGVTFDPQPALQQGELDLVMTSDILPRSGLHYSPMFDYEVRLVLAPDHPLAAKTRITPEDLASETLLIYPVQRSRLDVWRHFLQPAGVSPSLKSVDNTLLLIQMVAARMGIAALPHWVVESFERQGLVVTKTLGEGLWSRLYAAVRDGEQRQPVTEAFIRSARNHACDHLPFVKSAERPTYDAPTVRPGSPARL