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EC 2.3.1.189 Details
EC number
2.3.1.189
Accepted name
mycothiol synthase
Reaction
desacetylmycothiol + acetyl-CoA = CoA + mycothiol
Other name(s)
MshD
Systematic name
acetyl-CoA:desacetylmycothiol O-acetyltransferase
Comment
This enzyme catalyses the last step in the biosynthesis of mycothiol, the major thiol in most actinomycetes, including Mycobacterium [1]. The enzyme is a member of a large family of GCN5-related N-acetyltransferases (GNATs) [2]. The enzyme has been purified from Mycobacterium tuberculosis H37Rv. Acetyl-CoA is the preferred CoA thioester but propionyl-CoA is also a substrate [3].
History
created 2010
EC Tree
2.3.1.55 created 1976, deleted 1999
2.3.1.120 created 1990, deleted 1992
2.3.1.124 created 1990, deleted 1992