UniProt:Q9Y672 ALG6

chain
  • chain:1-507
checksum 8BAC4BA9B8E366B9
comment
  • FUNCTION Dolichyl pyrophosphate Man9GlcNAc2 alpha-1,3-glucosyltransferase that operates in the biosynthetic pathway of dolichol-linked oligosaccharides, the glycan precursors employed in protein asparagine (N)-glycosylation. The assembly of dolichol-linked oligosaccharides begins on the cytosolic side of the endoplasmic reticulum membrane and finishes in its lumen. The sequential addition of sugars to dolichol pyrophosphate produces dolichol-linked oligosaccharides containing fourteen sugars, including two GlcNAcs, nine mannoses and three glucoses. Once assembled, the oligosaccharide is transferred from the lipid to nascent proteins by oligosaccharyltransferases. In the lumen of the endoplasmic reticulum, adds the first glucose residue from dolichyl phosphate glucose (Dol-P-Glc) onto the lipid-linked oligosaccharide intermediate Man(9)GlcNAc(2)-PP-Dol to produce Glc(1)Man(9)GlcNAc(2)-PP-Dol. Glc(1)Man(9)GlcNAc(2)-PP-Dol is a substrate for ALG8, the following enzyme in the biosynthetic pathway.CATALYTIC ACTIVITY an 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)-alpha-D-GlcNAc-diphospho-di-trans,poly-cis-dolichol + a di-trans,poly-cis-dolichyl beta-D-glucosyl phosphate = an alpha-D-Glc-(1->3)-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)-alpha-D-GlcNAc-diphospho-di-trans,poly-cis-dolichol + a di-trans,poly-cis-dolichyl phosphate + H(+)PATHWAY Protein modification; protein glycosylation.SUBCELLULAR LOCATION The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the ALG6/ALG8 glucosyltransferase family.
crossReference
databaseName UniProt
dbId 49886
description
  • recommendedName: fullName evidence="13"Dolichyl pyrophosphate Man9GlcNAc2 alpha-1,3-glucosyltransferase ecNumber evidence="2 11"2.4.1.267 alternativeName: fullName evidence="14"Asparagine-linked glycosylation protein 6 homolog alternativeName: Dol-P-Glc:Man(9)GlcNAc(2)-PP-Dol alpha-1,3-glucosyltransferase alternativeName: Dolichyl-P-Glc:Man9GlcNAc2-PP-dolichyl glucosyltransferase
displayName UniProt:Q9Y672 ALG6
geneName
  • ALG6
  • My046
identifier Q9Y672
isSequenceChanged false
keyword
  • Congenital disorder of glycosylation
  • Disease variant
  • Endoplasmic reticulum
  • Glycoprotein
  • Glycosyltransferase
  • Membrane
  • Proteomics identification
  • Reference proteome
  • Transferase
  • Transmembrane
  • Transmembrane helix
modified [InstanceEdit:9983091] Weiser, Joel, 2026-02-20
moleculeType Protein
name
  • ALG6
otherIdentifier
  • 11723990_at
  • 11723991_a_at
  • 11751023_a_at
  • 16665512
  • 219649_PM_at
  • 219649_at
  • 2339681
  • 2339683
  • 2339684
  • 2339685
  • 2339686
  • 2339687
  • 2339690
  • 2339694
  • 2339695
  • 2339696
  • 2339697
  • 2339699
  • 2339700
  • 2339701
  • 2339703
  • 2339704
  • 2339705
  • 2339706
  • 2339708
  • 2339709
  • 2339710
  • 2339711
  • 2339712
  • 2339713
  • 2339714
  • 2339715
  • 2339716
  • 2339717
  • 2339719
  • 29929
  • 52733_at
  • 52735_g_at
  • 70182_at
  • 7901915
  • 88210_at
  • A_14_P105676
  • A_14_P112481
  • A_23_P35168
  • GE58524
  • GO:0004583
  • GO:0005515
  • GO:0005783
  • GO:0005789
  • GO:0006486
  • GO:0006487
  • GO:0006488
  • GO:0016020
  • GO:0016740
  • GO:0016757
  • GO:0016758
  • GO:0042281
  • GO:0046527
  • GO:0098553
  • GO:1901135
  • HMNXSV003025949
  • HMNXSV003030730
  • ILMN_1771411
  • PH_hs_0029002
  • TC01000719.hg
  • g7019324_3p_at
physicalEntity
referenceDatabase [ReferenceDatabase:2] UniProt
referenceGene
referenceTranscript
schemaClass ReferenceGeneProduct
secondaryIdentifier
  • ALG6_HUMAN
  • B3KMU2
  • Q5SXR9
  • Q9H3I0
sequenceLength 507
species [Species:48887] Homo sapiens
stId uniprot:Q9Y672
url http://purl.uniprot.org/uniprot/Q9Y672
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