How the trp operon works Essay Example | Topics and Well Written Essays - 500 words

How the trp operon works - Essay Example The operon contains five types of structural genes: Trp A; Trp B; Trp C; Trp D; and Trp E with specific codes and synthesizing properties. The Trp operon regulates its own production through ‘negative feedback loop’ that promotes repressive affect resulting in non transfer of certain genetic expressions or codes (Oxender et. Al., 1979). Another important feature of Trp operon is that it has got attenuators and leader peptides comprising of nearly 140 nucleotides that help to dissociate RNA decoding from the DNA encoding and thereby repress the process of transcription. Thus their property of gene regulation becomes the most critical factor to study the highly complex process of hereditary characteristics and genetic behavioral pattern in living organisms. When it is liberated in the operator, the transcription is made possible and promotes genetic transfer of characteristics. Oxender, D. L., et al. (1979). Attenuation in the Escherichia coli tryptophan operon: Role of RNA secondary structure involving the tryptophan codon region. Proceedings of the National Academy of Sciences 76,