BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Tryptophan (Trp) is an essential amino acid primarily derived from the diet for use by the host for protein synthesis. The intestinal tract is lined with cells, both host and microbial, that uptake and metabolize Trp to also generate important signaling molecules.

Detailed explanation-2: -Tryptophan, encoded by a single codon UGG in most organisms, is the rarest amino acid in the proteome of E.

Detailed explanation-3: -Hopkins cole test This test is specific test for detecting tryptophan. The indole moiety of tryptophan reacts with glyoxilic acid in the presence of concentrated sulphuric acid to give a purple colored product.

Detailed explanation-4: -Due to less number of codons to code with, tryptophan appears less in proteins. Simply, it is not frequent in gene sequence!