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

From HandWiki
N-acetyl-1-D-myo-inositol-2-amino-2-deoxy-alpha-D-glucopyranoside deacetylase
Identifiers
EC number3.5.1.103
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

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.[1][2][3] This enzyme catalyses the following chemical reaction

1-(2-acetamido-2-deoxy-alpha-D-glucopyranosyl)-1D-myo-inositol + H2O [math]\displaystyle{ \rightleftharpoons }[/math] 1-(2-amino-2-deoxy-alpha-D-glucopyranoside)-1D-myo-inositol + acetate

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

References

  1. "Inactivation of mshB, a key gene in the mycothiol biosynthesis pathway in Mycobacterium smegmatis". Microbiology 149 (Pt 5): 1341–9. May 2003. doi:10.1099/mic.0.26084-0. PMID 12724395. 
  2. "N-Acetyl-1-D-myo-inosityl-2-amino-2-deoxy-alpha-D-glucopyranoside deacetylase (MshB) is a key enzyme in mycothiol biosynthesis". Journal of Bacteriology 182 (24): 6958–63. December 2000. doi:10.1128/jb.182.24.6958-6963.2000. PMID 11092856. 
  3. "The crystal structure of 1-D-myo-inosityl 2-acetamido-2-deoxy-alpha-D-glucopyranoside deacetylase (MshB) from Mycobacterium tuberculosis reveals a zinc hydrolase with a lactate dehydrogenase fold". The Journal of Biological Chemistry 278 (47): 47166–70. November 2003. doi:10.1074/jbc.m308914200. PMID 12958317. 

External links