trp operon

The trp operon, found in E. trp catur777 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