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GALACTOSIDE ACETYLTRANSFERASE IN COMPLEX WITH COENZYME A

Source organism: Escherichia coli
Biochemical function: identical protein binding
Biological process: lactose biosynthetic process
Cellular component: cytoplasm

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EC 2.3.1.18: Galactoside O-acetyltransferase

Reaction catalysed:
Acetyl-CoA + a beta-D-galactoside = CoA + a 6-acetyl-beta-D-galactoside
Systematic name:
Acetyl-CoA:beta-D-galactoside 6-acetyltransferase
Alternative Name(s):
  • Galactoside acetyltransferase
  • Thiogalactoside acetyltransferase
  • Thiogalactoside transacetylase

GO terms

Sequence families

Pfam Protein families (Pfam)
PF00132
Domain description: Bacterial transferase hexapeptide (six repeats)
Occurring in:
  1. Galactoside O-acetyltransferase
The deposited structure of PDB entry 1kqa contains 3 copies of Pfam domain PF00132 (Bacterial transferase hexapeptide (six repeats)) in Galactoside O-acetyltransferase. Showing 1 copy in chain A.

PF12464
Domain description: Maltose acetyltransferase
Occurring in:
  1. Galactoside O-acetyltransferase
The deposited structure of PDB entry 1kqa contains 3 copies of Pfam domain PF12464 (Maltose acetyltransferase ) in Galactoside O-acetyltransferase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR024688
Domain description: Maltose/galactoside acetyltransferase
Occurring in:
  1. Galactoside O-acetyltransferase
IPR018357
Domain description: Hexapeptide transferase, conserved site
Occurring in:
  1. Galactoside O-acetyltransferase
IPR001451
Domain description: Hexapeptide repeat
Occurring in:
  1. Galactoside O-acetyltransferase
IPR011004
Domain description: Trimeric LpxA-like superfamily
Occurring in:
  1. Galactoside O-acetyltransferase
IPR039369
Domain description: Galactoside O-acetyltransferase LacA-like
Occurring in:
  1. Galactoside O-acetyltransferase

Structure domain

CATH CATH domain
2.160.10.10
Class: Mainly Beta
Architecture: 3 Solenoid
Topology: UDP N-Acetylglucosamine Acyltransferase; domain 1
Homology: Hexapeptide repeat proteins
Occurring in:
  1. Galactoside O-acetyltransferase
The deposited structure of PDB entry 1kqa contains 3 copies of CATH domain 2.160.10.10 (UDP N-Acetylglucosamine Acyltransferase; domain 1) in Galactoside O-acetyltransferase. Showing 1 copy in chain A.
SCOP SCOP annotation
51168
Class: All beta proteins
Fold: Single-stranded left-handed beta-helix
Superfamily: Trimeric LpxA-like enzymes
Occurring in:
  1. Galactoside O-acetyltransferase
The deposited structure of PDB entry 1kqa contains 3 copies of SCOP domain 51168 (Galactoside acetyltransferase-like) in Galactoside O-acetyltransferase. Showing 1 copy in chain A.

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