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 FLRRPLocalizationUniProt · 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.
- Vesicoureteral reflux
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.
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