IGHV3-73
Immunoglobulin heavy variable 3-73
Also known as: HV373_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- A0A0B4J1V6
- Gene
- IGHV3-73
- Ensembl
- ENSG00000211976
- Chromosome
- 14
- Canonical length
- 119 aa
- Protein class
- Immunoglobulin genes, Predicted secreted proteins
- Secretome location
- Immunoglobulin genes
OverviewNCBI Gene
Predicted to enable antigen binding activity. Predicted to be involved in immunoglobulin mediated immune response. Predicted to be located in extracellular region and plasma membrane. Predicted to be part of immunoglobulin complex. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
119 residues, UniProt reviewed canonical sequence.
>A0A0B4J1V6|IGHV3-73
1 MEFGLSWVFL VAILKGVQCE VQLVESGGGL VQPGGSLKLS CAASGFTFSG SAMHWVRQAS
61 GKGLEWVGRI RSKANSYATA YAASVKGRFT ISRDDSKNTA YLQMNSLKTE DTAVYYCTRLocalizationUniProt · AlphaFold · HPA
Whether an antibody against IGHV3-73 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
- Cell surface
- Secreted
- No
- Transmembrane segments
- 0
- Highest tissue expression
- 133 nTPM
Expression across tissuesHPA
Tissue
- duodenum: 133 nTPM
- spleen: 77 nTPM
- urinary bladder: 77 nTPM
- colon: 72 nTPM
- rectum: 54 nTPM
- stomach: 45 nTPM
Single-cell type
- plasma cells: 108 nCPM
- b-cells: 0.1 nCPM
- goblet cells: 0.1 nCPM
- adipocytes: 0 nCPM
- adrenal cortex cells: 0 nCPM
- adrenal medulla cells: 0 nCPM
Immune cell
- memory B-cell: 70 nTPM
- naive B-cell: 43 nTPM
- total PBMC: 6 nTPM
- gdT-cell: 0.6 nTPM
- memory CD4 T-cell: 0.1 nTPM
- basophil: 0 nTPM
Brain region
- cerebral cortex: 0.7 nTPM
- choroid plexus: 0.7 nTPM
- white matter: 0.7 nTPM
- pons: 0.5 nTPM
- medulla oblongata: 0.2 nTPM
- hypothalamus: 0.1 nTPM
OntologyGO
Biological processes
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads IGHV3-73 as an antibody target. Whether an autoantibody or antibody against IGHV3-73 could matter depends on whether native IGHV3-73 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
IGHV3-73 is annotated at the cell surface, where native IGHV3-73 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label IGHV3-73 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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