Noun
a segment of DNA containing adjacent genes including structural genes and an operator gene and a regulatory gene
Source: WordNetThe J protein interacts with the maltose outer membrane porin (the product of the lamB gene) of E. coli, citation a porin molecule, which is part of the maltose operon. Source: Internet
So high levels of tryptophan prevent tryptophan synthesis through a negative feedback loop and, when the cell's tryptophan levels are reduced, transcription from the trp operon resumes. Source: Internet
The genetic organisation of the trp operon thus permits tightly regulated and rapid responses to changes in the cell's internal and external tryptophan levels. Source: Internet
The operon is said to be polycistronic, whereas ordinary genes are said to be monocistronic. Source: Internet