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Crystal structure of kojibiose phosphorylase complexed with kojibiose

Source organism: Caldicellulosiruptor saccharolyticus DSM 8903
Biochemical function: protein-glucosylgalactosylhydroxylysine glucosidase activity
Biological process: trehalose catabolic process
Cellular component: cytosol

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EC 2.4.1.230: Kojibiose phosphorylase

Reaction catalysed:
2-alpha-D-glucosyl-D-glucose + phosphate = D-glucose + beta-D-glucose 1-phosphate
Systematic name:
2-alpha-D-glucosyl-D-glucose:phosphate beta-D-glucosyltransferase

GO terms

Sequence families

Pfam Protein families (Pfam)
PF03633
Domain description: Glycosyl hydrolase family 65, C-terminal domain
Occurring in:
  1. Kojibiose phosphorylase
The deposited structure of PDB entry 3wiq contains 1 copy of Pfam domain PF03633 (Glycosyl hydrolase family 65, C-terminal domain ) in Kojibiose phosphorylase. Showing 1 copy in chain A.

PF03632
Domain description: Glycosyl hydrolase family 65 central catalytic domain
Occurring in:
  1. Kojibiose phosphorylase
The deposited structure of PDB entry 3wiq contains 1 copy of Pfam domain PF03632 (Glycosyl hydrolase family 65 central catalytic domain) in Kojibiose phosphorylase. Showing 1 copy in chain A.

PF03636
Domain description: Glycosyl hydrolase family 65, N-terminal domain
Occurring in:
  1. Kojibiose phosphorylase
The deposited structure of PDB entry 3wiq contains 1 copy of Pfam domain PF03636 (Glycosyl hydrolase family 65, N-terminal domain ) in Kojibiose phosphorylase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR005194
Domain description: Glycoside hydrolase family 65, C-terminal
Occurring in:
  1. Kojibiose phosphorylase
IPR005195
Domain description: Glycoside hydrolase, family 65, central catalytic
Occurring in:
  1. Kojibiose phosphorylase
IPR012341
Domain description: Six-hairpin glycosidase-like superfamily
Occurring in:
  1. Kojibiose phosphorylase
IPR008928
Domain description: Six-hairpin glycosidase superfamily
Occurring in:
  1. Kojibiose phosphorylase
IPR005196
Domain description: Glycoside hydrolase, family 65, N-terminal
Occurring in:
  1. Kojibiose phosphorylase
IPR011013
Domain description: Galactose mutarotase-like domain superfamily
Occurring in:
  1. Kojibiose phosphorylase
IPR017045
Domain description: Maltose phosphorylase/glycosyl hydrolase/vacuolar acid trehalase
Occurring in:
  1. Kojibiose phosphorylase
IPR037018
Domain description: Glycoside hydrolase family 65, N-terminal domain superfamily
Occurring in:
  1. Kojibiose phosphorylase

Structure domains

CATH CATH domains
2.60.420.10
Class: Mainly Beta
Architecture: Sandwich
Topology: Maltose phosphorylase, domain 3
Homology: Maltose phosphorylase, domain 3
Occurring in:
  1. Kojibiose phosphorylase
The deposited structure of PDB entry 3wiq contains 1 copy of CATH domain 2.60.420.10 (Maltose phosphorylase, domain 3) in Kojibiose phosphorylase. Showing 1 copy in chain A.
1.50.10.10
Class: Mainly Alpha
Architecture: Alpha/alpha barrel
Topology: Glycosyltransferase
Homology: Glycosyltransferase
Occurring in:
  1. Kojibiose phosphorylase
The deposited structure of PDB entry 3wiq contains 1 copy of CATH domain 1.50.10.10 (Glycosyltransferase) in Kojibiose phosphorylase. Showing 1 copy in chain A.
2.70.98.40
Class: Mainly Beta
Architecture: Distorted Sandwich
Topology: Beta-galactosidase; Chain A, domain 5
Homology: Glycoside hydrolase, family 65, N-terminal domain
Occurring in:
  1. Kojibiose phosphorylase
The deposited structure of PDB entry 3wiq contains 1 copy of CATH domain 2.70.98.40 (Beta-galactosidase; Chain A, domain 5) in Kojibiose phosphorylase. Showing 1 copy in chain A.

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