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Trp operon repressor

UniProtKB accession:  P0A881
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Go to UniProtKB:  P0A881
UniProtKB description:  This protein is an aporepressor. When complexed with L-tryptophan it binds the operator region of the trp operon (5'-ACTAGT-'3') and prevents the initiation of transcription. The complex also regulates trp repressor biosynthesis by binding to its regulatory region.
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