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CATH Classification

Domain Context

CATH Clusters

Superfamily LmbE-like
Functional Family 1D-myo-inositol 2-acetamido-2-deoxy-alpha-D-glucopyranoside deacetylase

Enzyme Information

3.5.1.103
N-acetyl-1-D-myo-inositol-2-amino-2-deoxy-alpha-D-glucopyranoside deacetylase.
based on mapping to UniProt P9WJN3
1-O-(2-acetamido-2-deoxy-alpha-D-glucopyranosyl)-1D-myo-inositol + H(2)O = 1-O-(2-amino-2-deoxy-alpha-D-glucopyranosyl)-1D-myo-inositol + acetate.
-!- This enzyme is considered the key enzyme and rate limiting step in the mycothiol biosynthesis pathway. -!- In addition to acetylase activity, the enzyme possesses weak mycothiol conjugate amidase activity, and shares sequence similarity with mycothiol S-conjugate amidase. -!- Formerly EC 3.1.1.n1.

UniProtKB Entries (1)

P9WJN3
MSHB_MYCTU
Mycobacterium tuberculosis H37Rv
1D-myo-inositol 2-acetamido-2-deoxy-alpha-D-glucopyranoside deacetylase

PDB Structure

PDB 1Q74
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
The Crystal Structure of 1-D-myo-Inositol 2-Acetamido-2-deoxy-alpha-D-glucopyranoside Deacetylase (MshB) from Mycobacterium tuberculosis Reveals a Zinc Hydrolase with a Lactate Dehydrogenase Fold.
Maynes, J.T., Garen, C., Cherney, M.M., Newton, G., Arad, D., Av-Gay, Y., Fahey, R.C., James, M.N.
J.Biol.Chem.
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