What would be the effect on regulation of tryptophan levels if there were a mutation in operator of Trp operon and thereby the operator was not recognized by TrpR?
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ASSALAMUALAIKUM
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✒The trp operon, found in E. coli bacteria, is a group of genes that encode biosynthetic enzymes for the amino acid tryptophan.
The trp operon is expressed (turned "on") when tryptophan levels are low and repressed (turned "off") when they are high.
The trp operon is regulated by the trp repressor. When bound to tryptophan, the trp repressor blocks expression of the operon.
Tryptophan biosynthesis is also regulated by attenuation (a mechanism based on coupling of transcription and translation).
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