G3YEJ3 · G3YEJ3_ASPNA
- Proteinalpha-1,2-Mannosidase
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids699 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Involved in the maturation of Asn-linked oligosaccharides. Progressively trims alpha-1,2-linked mannose residues from Man9GlcNAc2 to produce Man5GlcNAc2.
Catalytic activity
- N4-(alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 8A1,2,3B1,3) + 3 H2O = N4-(alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 5A1,2) + 3 beta-D-mannose
- N4-(alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 9A1,2,3B1,2,3) + 4 H2O = N4-(alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc)-L-asparaginyl-[protein] (N-glucan mannose isomer 5A1,2) + 4 beta-D-mannose
Cofactor
Protein has several cofactor binding sites:
Pathway
Protein modification; protein glycosylation.
Features
Showing features for active site, binding site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Active site | 228 | Proton donor | |||
Active site | 377 | ||||
Active site | 501 | Proton donor | |||
Active site | 572 | ||||
Binding site | 664 | Ca2+ (UniProtKB | ChEBI) | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasmic vesicle lumen | |
Cellular Component | endoplasmic reticulum | |
Cellular Component | membrane | |
Molecular Function | calcium ion binding | |
Molecular Function | mannosyl-oligosaccharide 1,2-alpha-mannosidase activity | |
Biological Process | carbohydrate metabolic process | |
Biological Process | mannose trimming involved in glycoprotein ERAD pathway | |
Biological Process | protein glycosylation |
Keywords
- Molecular function
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended namealpha-1,2-Mannosidase
- EC number
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Fungi > Dikarya > Ascomycota > Pezizomycotina > Eurotiomycetes > Eurotiomycetidae > Eurotiales > Aspergillaceae > Aspergillus > Aspergillus subgen. Circumdati
Accessions
- Primary accessionG3YEJ3
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Transmembrane | 82-99 | Helical | |||
Keywords
- Cellular component
PTM/Processing
Features
Showing features for disulfide bond.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Disulfide bond | 444↔487 | ||||
Keywords
- PTM
Interaction
Structure
Sequence
- Sequence statusComplete
- Length699
- Mass (Da)79,519
- Last updated2011-12-14 v1
- MD5 ChecksumBCECA1E916A9C36012A298739E5C38E1
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
ACJE01000020 EMBL· GenBank· DDBJ | EHA19210.1 EMBL· GenBank· DDBJ | Genomic DNA |