Fig. 6From: Mechanism of microbial production of acetoin and 2,3-butanediol optical isomers and substrate specificity of butanediol dehydrogenaseClose-up views of the mercaptoethanol-binding site in S-BDH (A) and in meso-BDH (B). Hydrogen bond distances and the distances from catalytic residues are depicted as yellow broken lines [54]Back to article page