Seroatlas · Human Serome Atlas

VWA2

von Willebrand factor A domain-containing protein 2

Also known as: AMACO, CCSP-2, FLJ16213, FLJ45857, NET42, VWA2_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q5GFL6
Gene
VWA2
Ensembl
ENSG00000165816
Chromosome
10
Canonical length
755 aa
Protein class
Predicted intracellular proteins, Predicted secreted proteins
Secretome location
Secreted to extracellular matrix

OverviewNCBI Gene

This gene encodes a member of the von Willebrand factor A-like domain protein superfamily. The encoded protein is localized to the extracellular matrix and may serve as a structural component in basement membranes or in anchoring structures on scaffolds of collagen VII or fibrillin. This gene has been linked to type 1A diabetes and is a candidate serological marker for colon cancer. [provided by RefSeq, Jan 2013]

Canonical amino-acid sequenceUniProt

755 residues, UniProt reviewed canonical sequence.

>Q5GFL6|VWA2
     1  MPPFLLLEAV CVFLFSRVPP SLPLQEVHVS KETIGKISAA SKMMWCSAAV DIMFLLDGSN
    61  SVGKGSFERS KHFAITVCDG LDISPERVRV GAFQFSSTPH LEFPLDSFST QQEVKARIKR
   121  MVFKGGRTET ELALKYLLHR GLPGGRNASV PQILIIVTDG KSQGDVALPS KQLKERGVTV
   181  FAVGVRFPRW EELHALASEP RGQHVLLAEQ VEDATNGLFS TLSSSAICSS ATPDCRVEAH
   241  PCEHRTLEMV REFAGNAPCW RGSRRTLAVL AAHCPFYSWK RVFLTHPATC YRTTCPGPCD
   301  SQPCQNGGTC VPEGLDGYQC LCPLAFGGEA NCALKLSLEC RVDLLFLLDS SAGTTLDGFL
   361  RAKVFVKRFV RAVLSEDSRA RVGVATYSRE LLVAVPVGEY QDVPDLVWSL DGIPFRGGPT
   421  LTGSALRQAA ERGFGSATRT GQDRPRRVVV LLTESHSEDE VAGPARHARA RELLLLGVGS
   481  EAVRAELEEI TGSPKHVMVY SDPQDLFNQI PELQGKLCSR QRPGCRTQAL DLVFMLDTSA
   541  SVGPENFAQM QSFVRSCALQ FEVNPDVTQV GLVVYGSQVQ TAFGLDTKPT RAAMLRAISQ
   601  APYLGGVGSA GTALLHIYDK VMTVQRGARP GVPKAVVVLT GGRGAEDAAV PAQKLRNNGI
   661  SVLVVGVGPV LSEGLRRLAG PRDSLIHVAA YADLRYHQDV LIEWLCGEAK QPVNLCKPSP
   721  CMNEGSCVLQ NGSYRCKCRD GWEGPHCENR FLRRP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against VWA2 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
Secreted
Secreted
Yes
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.27
Highest tissue expression
8.1 nTPM

Expression across tissuesHPA

Tissue

  • stomach: 8.1 nTPM
  • fallopian tube: 6 nTPM
  • skin: 6 nTPM
  • prostate: 5 nTPM
  • salivary gland: 4.3 nTPM
  • cervix: 3.7 nTPM

Single-cell type

  • epididymal efferent duct ciliated cells: 97 nCPM
  • mucous neck cells: 74 nCPM
  • gastric chief cells: 54 nCPM
  • epididymal basal cells: 51 nCPM
  • medullary thymic epithelial cells: 46 nCPM
  • late spermatids: 43 nCPM

Immune cell

  • basophil: 0.2 nTPM
  • neutrophil: 0.1 nTPM
  • plasmacytoid DC: 0.1 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM

Brain region

  • amygdala: 6.2 nTPM
  • cerebellum: 5.4 nTPM
  • thalamus: 5.3 nTPM
  • pons: 4.6 nTPM
  • medulla oblongata: 4.5 nTPM
  • cerebral cortex: 4.4 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about VWA2.

Disease | GeneticClinVar

1 pathogenic / likely-pathogenic of 75 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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)
1.39
gnomAD pLI
0
gnomAD missense Z
-0.01
DepMap mean gene effect
-0.06
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads VWA2 as an antibody target. Whether an autoantibody or antibody against VWA2 could matter depends on whether native VWA2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

VWA2 is annotated as secreted, so native VWA2 circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.

Source-annotated serology context

The source annotations explicitly mention antibody, autoantibody, autoantigen, or autoimmune context. This is biological context, not study-specific reactivity.

  • This gene has been linked to type 1A diabetes and is a candidate serological marker for colon cancer.

Canonical record: https://seroatlas.com/gene/VWA2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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