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Crystal structure of xylanase from Streptomyces olivaceoviridis E-86 complexed with galactose

Source organism: Streptomyces olivaceoviridis
Biochemical function: endo-1,4-beta-xylanase activity
Biological process: carbohydrate metabolic process
Cellular component: not assigned

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EC 3.2.1.8: Endo-1,4-beta-xylanase

Reaction catalysed:
Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans
Systematic name:
4-beta-D-xylan xylanohydrolase
Alternative Name(s):
  • 1,4-beta-D-xylan xylanohydrolase
  • 1,4-beta-xylan xylanohydrolase
  • Beta-1,4-xylan xylanohydrolase
  • Beta-1,4-xylanase
  • Beta-D-xylanase
  • Beta-xylanase
  • Endo-(1->4)-beta-xylanase(1->4)-beta-xylan 4-xylanohydrolase
  • Endo-1,4-beta-D-xylanase
  • Endo-1,4-xylanase
  • Endo-beta-1,4-xylanase
  • Xylanase

GO terms

Sequence families

Pfam Protein families (Pfam)
PF00652
Domain description: Ricin-type beta-trefoil lectin domain
Occurring in:
  1. Beta-xylanase
The deposited structure of PDB entry 1isz contains 2 copies of Pfam domain PF00652 (Ricin-type beta-trefoil lectin domain) in Beta-xylanase. Showing 1 copy in chain A.

PF00331
Domain description: Glycosyl hydrolase family 10
Occurring in:
  1. Beta-xylanase
The deposited structure of PDB entry 1isz contains 2 copies of Pfam domain PF00331 (Glycosyl hydrolase family 10) in Beta-xylanase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR001000
Domain description: Glycoside hydrolase family 10 domain
Occurring in:
  1. Beta-xylanase
IPR000772
Domain description: Ricin B, lectin domain
Occurring in:
  1. Beta-xylanase
IPR035992
Domain description: Ricin B-like lectins
Occurring in:
  1. Beta-xylanase
IPR031158
Domain description: Glycosyl hydrolases family 10, active site
Occurring in:
  1. Beta-xylanase
IPR044846
Domain description: Glycoside hydrolase family 10
Occurring in:
  1. Beta-xylanase
IPR017853
Domain description: Glycoside hydrolase superfamily
Occurring in:
  1. Beta-xylanase

Structure domains

CATH CATH domains
2.80.10.50
Class: Mainly Beta
Architecture: Trefoil
Topology: Trefoil (Acidic Fibroblast Growth Factor, subunit A)
Homology: Trefoil (Acidic Fibroblast Growth Factor, subunit A)
Occurring in:
  1. Beta-xylanase
The deposited structure of PDB entry 1isz contains 2 copies of CATH domain 2.80.10.50 (Trefoil (Acidic Fibroblast Growth Factor, subunit A)) in Beta-xylanase. Showing 1 copy in chain A.
3.20.20.80
Class: Alpha Beta
Architecture: Alpha-Beta Barrel
Topology: TIM Barrel
Homology: Glycosidases
Occurring in:
  1. Beta-xylanase
The deposited structure of PDB entry 1isz contains 2 copies of CATH domain 3.20.20.80 (TIM Barrel) in Beta-xylanase. Showing 1 copy in chain A.
SCOP SCOP annotations
50371
Class: All beta proteins
Fold: beta-Trefoil
Superfamily: Ricin B-like lectins
Occurring in:
  1. Beta-xylanase
The deposited structure of PDB entry 1isz contains 2 copies of SCOP domain 50371 (Ricin B-like) in Beta-xylanase. Showing 1 copy in chain A.
51487
Class: Alpha and beta proteins (a/b)
Fold: TIM beta/alpha-barrel
Superfamily: (Trans)glycosidases
Occurring in:
  1. Beta-xylanase
The deposited structure of PDB entry 1isz contains 2 copies of SCOP domain 51487 (beta-glycanases) in Beta-xylanase. Showing 1 copy in chain A.

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