The Vitamin B7 (biotin) molecule in 3-D

The Vitamin B7 (biotin) molecule - rotatable in 3 dimensions

Vitamin B7 (biotin) is said to be an essential cofactor for several enzymes involved in carboxylation reactions, e.g. pyruvate carboxylase and acetyl-CoA carboxylase, which catalyze key reactions in gluconeogenesis, fatty acid metabolism, and amino acid catabolism.

Biotin has an imidazole ring fused with a thiophane (tetrahydrothiophene) ring, which has a pentanoic acid substituent attached .

Label/ Unlabel atoms