What cellular signal does the trp operon detect?

What cellular signal does the trp operon detect? 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.

What is the trp operon and what does it do? The trp operon is an operon-a group of genes that is used, or transcribed, together—that codes for the components for production of tryptophan. The trp operon is present in many bacteria, but was first characterized in Escherichia coli.

What activates the trp operon? The trp operon is activated when tryptophan levels are low by dissociation of the repressor protein to the operator sequence which allows RNA polymerase to transcribe the trp genes in the operon.

What does the trp operon produce? The trp operon in E. coli contains five genes that produce proteins that are used in the production of the amino acid tryptophan when needed by the cell. When tryptophan levels in the cell are high, tryptophan binds to the trp operon repressor protein, which activates it.

Trp operon Attenuation Animation

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