VMA12
Vacuolar ATPase assembly protein VMA12
Also known as: C17orf32, MGC45714, TMEM199, VMA12_HUMAN, VPH2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8N511
- Gene
- VMA12
- Ensembl
- ENSG00000244045
- Chromosome
- 17
- Canonical length
- 208 aa
- Protein class
- Disease related genes, Human disease related genes, Potential drug targets, Predicted intracellular proteins, Predicted membrane proteins, Transporters
OverviewNCBI Gene
The protein encoded by this gene has been observed to localize to the endoplasmic reticulum (ER)-Golgi intermediate compartment (ERGIC) and coat protein complex I (COPI) in some human cells. The encoded protein shares some homology with the yeast protein Vma12. Defects in this gene are a cause of congenital disorder of glycosylation, type IIp. [provided by RefSeq, Mar 2016]
Canonical amino-acid sequenceUniProt
208 residues, UniProt reviewed canonical sequence.
>Q8N511|VMA12
1 MASSLLAGER LVRALGPGGE LEPERLPRKL RAELEAALGK KHKGGDSSSG PQRLVSFRLI
61 RDLHQHLRER DSKLYLHELL EGSEIYLPEV VKPPRNPELV ARLEKIKIQL ANEEYKRITR
121 NVTCQDTRHG GTLSDLGKQV RSLKALVITI FNFIVTVVAA FVCTYLGSQY IFTEMASRVL
181 AALIVASVVG LAELYVMVRA MEGELGELLocalizationUniProt · AlphaFold · HPA
Whether an antibody against VMA12 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
- 2
- Mean surface accessibility (rSASA)
- 0.43
- Highest tissue expression
- 15 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 15 nTPM
- liver: 14 nTPM
- retina: 13 nTPM
- spleen: 13 nTPM
- bone marrow: 13 nTPM
- kidney: 12 nTPM
Single-cell type
- bergmann glia: 17 nCPM
- oligodendrocytes: 15 nCPM
- other brain neurons: 14 nCPM
- microglia: 13 nCPM
- brain excitatory neurons: 13 nCPM
- brain inhibitory neurons: 12 nCPM
Immune cell
- basophil: 29 nTPM
- intermediate monocyte: 25 nTPM
- classical monocyte: 24 nTPM
- non-classical monocyte: 23 nTPM
- eosinophil: 20 nTPM
- myeloid DC: 20 nTPM
Brain region
- white matter: 19 nTPM
- thalamus: 17 nTPM
- hypothalamus: 17 nTPM
- basal ganglia: 16 nTPM
- pons: 16 nTPM
- medulla oblongata: 16 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about VMA12.
Disease | AllUniProt
Conditions VMA12 is implicated in, by any mechanism.
- Congenital disorder of glycosylation 2P (CDG2P) MIM:616829
Disease | GeneticClinVar
7 pathogenic / likely-pathogenic of 84 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- TMEM199-CDG
- Congenital disorders of glycosylation type II
- TMEM199-related disorder
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)
- 1.46
- gnomAD pLI
- 0
- DepMap mean gene effect
- -0.51
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 8% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cellular response to increased oxygen levels
- intracellular iron ion homeostasis
- lysosomal lumen acidification
- lysosomal protein catabolic process
- vacuolar proton-transporting V-type ATPase complex assembly
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- ATPase, vacuolar ER assembly factor, Vma12
- Endoplasmic reticulum-based factor for assembly of V-ATPase
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of VMA12 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads VMA12 as an antibody target. Whether an autoantibody or antibody against VMA12 could matter depends on whether native VMA12 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
VMA12 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 VMA12 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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