ALG6
Dolichyl pyrophosphate Man9GlcNAc2 alpha-1,3-glucosyltransferase
Also known as: ALG6_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9Y672
- Gene
- ALG6
- Ensembl
- ENSG00000088035
- Chromosome
- 1
- Canonical length
- 507 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted membrane proteins
- Subcellular location
- Endoplasmic reticulum
OverviewNCBI Gene
This gene encodes a member of the ALG6/ALG8 glucosyltransferase family. The encoded protein catalyzes the addition of the first glucose residue to the growing lipid-linked oligosaccharide precursor of N-linked glycosylation. Mutations in this gene are associated with congenital disorders of glycosylation type Ic. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
507 residues, UniProt reviewed canonical sequence.
>Q9Y672|ALG6
1 MEKWYLMTVV VLIGLTVRWT VSLNSYSGAG KPPMFGDYEA QRHWQEITFN LPVKQWYFNS
61 SDNNLQYWGL DYPPLTAYHS LLCAYVAKFI NPDWIALHTS RGYESQAHKL FMRTTVLIAD
121 LLIYIPAVVL YCCCLKEIST KKKIANALCI LLYPGLILID YGHFQYNSVS LGFALWGVLG
181 ISCDCDLLGS LAFCLAINYK QMELYHALPF FCFLLGKCFK KGLKGKGFVL LVKLACIVVA
241 SFVLCWLPFF TEREQTLQVL RRLFPVDRGL FEDKVANIWC SFNVFLKIKD ILPRHIQLIM
301 SFCSTFLSLL PACIKLILQP SSKGFKFTLV SCALSFFLFS FQVHEKSILL VSLPVCLVLS
361 EIPFMSTWFL LVSTFSMLPL LLKDELLMPS VVTTMAFFIA CVTSFSIFEK TSEEELQLKS
421 FSISVRKYLP CFTFLSRIIQ YLFLISVITM VLLTLMTVTL DPPQKLPDLF SVLVCFVSCL
481 NFLFFLVYFN IIIMWDSKSG RNQKKISLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ALG6 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Other membrane
- Secreted
- No
- Transmembrane segments
- 11
- Mean surface accessibility (rSASA)
- 0.23
- Highest tissue expression
- 1.9 nTPM
Expression across tissuesHPA
Tissue
- thymus: 1.9 nTPM
- lymph node: 1.8 nTPM
- breast: 1.6 nTPM
- pancreas: 1.5 nTPM
- skin: 1.5 nTPM
- tonsil: 1.5 nTPM
Single-cell type
- cytotrophoblasts: 55 nCPM
- myonuclei: 52 nCPM
- tuft cells: 46 nCPM
- migrating cytotrophoblasts: 41 nCPM
- neutrophils: 39 nCPM
- neutrophil progenitors: 39 nCPM
Immune cell
- basophil: 1.3 nTPM
- naive CD4 T-cell: 0.6 nTPM
- naive CD8 T-cell: 0.5 nTPM
- eosinophil: 0.4 nTPM
- MAIT T-cell: 0.4 nTPM
- NK-cell: 0.4 nTPM
Brain region
- cerebellum: 3.2 nTPM
- white matter: 2.3 nTPM
- cerebral cortex: 2.1 nTPM
- basal ganglia: 2 nTPM
- hypothalamus: 1.8 nTPM
- midbrain: 1.8 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ALG6.
Disease | AllUniProt
Conditions ALG6 is implicated in, by any mechanism.
- Congenital disorder of glycosylation 1C (CDG1C) MIM:603147
Disease | GeneticClinVar
149 pathogenic / likely-pathogenic of 880 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- ALG6-congenital disorder of glycosylation 1C
- ALG6-related disorder
- Inborn genetic diseases
- Clear cell carcinoma of kidney
- Colorectal cancer
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.64
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.53
- DepMap mean gene effect
- -0.24
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
- dolichyl-phosphate-glucose-glycolipid alpha-glucosyltransferase activity
- glucosyltransferase activity
- dolichyl pyrophosphate Man9GlcNAc2 alpha-1,3-glucosyltransferase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads ALG6 as an antibody target. Whether an autoantibody or antibody against ALG6 could matter depends on whether native ALG6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ALG6 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label ALG6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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