Question

Some bacteria produce poly-γ-glutamic acid, a polymer in which the amino group of each glutamate residue is condensed with the γ-carboxylate group of the adjacent residue. Draw the repeating structure of this polymer.

Short answer

Poly-γ-glutamic acid is a biopolymer formed by the repeating units of either L-Glutamic acid or D-Glutamic acid or both.It is formed during bacterial fermentation.

Step-by-step solution

Poly-γ-glutamic acid

Poly-γ-glutamic acid is a biopolymer formed by the repeating units of either L-Glutamic acid or D-Glutamic acid or both.It is formed during bacterial fermentation.

Formation of poly-γ-glutamic acid

The peptide bond formation in between the amino group of one glutamic acid with the carboxyl group of the second glutamic acid results in the formation of the poly-γ-glutamic acid.

Chemical Structure of poly-γ-glutamic acid

Thus, structure of the poly-γ-glutamic acid was drawn.