CATH Classification

Domain Context

CATH Clusters

Superfamily Glycosyl hydrolase family 63, N-terminal domain
Functional Family

Enzyme Information

3.2.1.106
Mannosyl-oligosaccharide glucosidase.
based on mapping to UniProt P53008
Glc(3)Man(9)GlcNAc(2)-[protein] + H(2)O = Glc(2)Man(9)GlcNAc(2)-[protein] + beta-D-glucopyranose.
-!- This enzyme catalyzes the first step in the processing of the N-glycan tetradecasaccharide precursor Glc(3)Man(9)GlcNAc(2), which takes place in the endoplasmic reticulum, by removing the distal alpha-1,2-linked glucose residue. -!- This and subsequent processing steps are required before complex N-glycans can be synthesized.

UniProtKB Entries (1)

P53008
CWH41_YEAST
Saccharomyces cerevisiae S288C
Mannosyl-oligosaccharide glucosidase

PDB Structure

PDB 4J5T
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Specificity of processing alpha-glucosidase I is guided by the substrate conformation: crystallographic and in silico studies.
Barker, M.K., Rose, D.R.
J.Biol.Chem.
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