N acetyl 1 D myo inositol 2 amino 2 deoxy alpha D glucopyranoside deacetylase

N-acetyl-1-D-myo-inositol-2-amino-2-deoxy-alpha-D-glucopyranoside deacetylase (EC 3.5.1.103, MshB) is an enzyme with systematic name 1-(2-acetamido-2-deoxy-alpha-D-glucopyranosyl)-1D-myo-inositol acetylhydrolase. This enzyme catalyses the following chemical reaction

1-(2-acetamido-2-deoxy-alpha-D-glucopyranosyl)-1D-myo-inositol + H₂O ⇌ 1-(2-amino-2-deoxy-alpha-D-glucopyranoside)-1D-myo-inositol + acetate

This enzyme mediates the rate limiting step in the mycothiol biosynthesis pathway.