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EC 2.3.1.305 Details
EC number
2.3.1.305
Accepted name
acyl-[acyl-carrier protein]—UDP-2-acetamido-3-amino-2,3-dideoxy-α-D-glucopyranose N-acyltransferase
Reaction
a (3R)-3-hydroxyacyl-[acyl-carrier protein] + UDP-2-acetamido-3-amino-2,3-dideoxy-α-D-glucopyranose = an [acyl-carrier protein] + a UDP-2-acetamido-2,3-dideoxy-3-{[(3R)-3-hydroxyacyl]amino}-α-D-glucopyranose
Other name(s)
lpxA (gene name) (ambiguous)
Systematic name
(3R)-3-hydroxyacyl-[acyl-carrier-protein]:UDP-2-acetamido-3-amino-2,3-dideoxy-α-D-glucopyranose 3-N-[(3R)-hydroxyacyl]transferase
Comment
The enzyme is found in bacterial species whose lipid A contains 2,3-diamino-2,3-dideoxy-D-glucopyranose. Some enzymes, such as that from Leptospira interrogans, are highly specific for 2,3-diamino-2,3-dideoxy-D-glucopyranose, while others, such as the enzyme from Acidithiobacillus ferrooxidans, are also able to accept UDP-N-acetyl-α-D-glucosamine (cf. EC 2.3.1.129, acyl-[acyl-carrier-protein]—UDP-N-acetylglucosamine O-acyltransferase). The enzymes from different organisms also differ in their specificity for the acyl donor. The enzyme from Leptospira interrogans is highly specific for (3R)-3-hydroxydodecanoyl-[acp], while that from Mesorhizobium loti functions almost equally well with 10-, 12-, and 14-carbon 3-hydroxyacyl-[acp]s.
History
created 2021
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