PDBe 1qnr

X-ray diffraction
1.4Å resolution

The 3-D structure of a Trichoderma reesei b-mannanase from glycoside hydrolase family 5


Function and Biology Details

Reaction catalysed:
Random hydrolysis of (1->4)-beta-D-mannosidic linkages in mannans, galactomannans and glucomannans. 
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Mannan endo-1,4-beta-mannosidase A Chain: A
Molecule details ›
Chain: A
Length: 344 amino acids
Theoretical weight: 37.75 KDa
Source organism: Trichoderma reesei
Expression system: Trichoderma reesei
  • Canonical: Q99036 (Residues: 28-371; Coverage: 82%)
Gene name: man1
Sequence domains: Cellulase (glycosyl hydrolase family 5)
Structure domains: Glycosidases

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SRS BEAMLINE PX9.6
Spacegroup: P21
Unit cell:
a: 50.748Å b: 54.922Å c: 61.363Å
α: 90° β: 111.73° γ: 90°
R R work R free
0.124 0.124 0.171
Expression system: Trichoderma reesei