VSX2
Visual system homeobox 2
Also known as: CHX10, HOX10, RET1, VSX2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P58304
- Gene
- VSX2
- Ensembl
- ENSG00000119614
- Chromosome
- 14
- Canonical length
- 361 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
OverviewNCBI Gene
This gene encodes a homeobox protein originally described as a retina-specific transcription factor. Mutations in this gene are associated with microphthalmia, cataracts and iris abnormalities. [provided by RefSeq, Oct 2009]
Canonical amino-acid sequenceUniProt
361 residues, UniProt reviewed canonical sequence.
>P58304|VSX2
1 MTGKAGEALS KPKSETVAKS TSGGAPARCT GFGIQEILGL NKEPPSSHPR AALDGLAPGH
61 LLAARSVLSP AGVGGMGLLG PGGLPGFYTQ PTFLEVLSDP QSVHLQPLGR ASGPLDTSQT
121 ASSDSEDVSS SDRKMSKSAL NQTKKRKKRR HRTIFTSYQL EELEKAFNEA HYPDVYAREM
181 LAMKTELPED RIQVWFQNRR AKWRKREKCW GRSSVMAEYG LYGAMVRHSI PLPESILKSA
241 KDGIMDSCAP WLLGMHKKSL EAAAESGRKP EGERQALPKL DKMEQDERGP DAQAAISQEE
301 LRENSIAVLR AKAQEHSTKV LGTVSGPDSL ARSTEKPEEE EAMDEDRPAE RLSPPQLEDM
361 ALocalizationUniProt · AlphaFold · HPA
Whether an antibody against VSX2 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.61
- Highest tissue expression
- 68 nTPM
Expression across tissuesHPA
Tissue
- retina: 68 nTPM
- testis: 0.2 nTPM
- basal ganglia: 0.1 nTPM
- lymph node: 0.1 nTPM
- spinal cord: 0.1 nTPM
- adipose tissue: 0 nTPM
Single-cell type
- retinal bipolar cells: 284 nCPM
- müller glia: 144 nCPM
- retinal horizontal cells: 4 nCPM
- retinal ganglion cells: 3.9 nCPM
- foveolar cells: 2.9 nCPM
- smooth muscle cells: 2.7 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- pons: 3.5 nTPM
- medulla oblongata: 2.5 nTPM
- midbrain: 1 nTPM
- spinal cord: 1 nTPM
- white matter: 0.3 nTPM
- cerebellum: 0.2 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about VSX2.
Disease | AllUniProt
Conditions VSX2 is implicated in, by any mechanism.
- Microphthalmia, isolated, 2 (MCOP2) MIM:610093
- Microphthalmia with cataracts and iris abnormalities (MCOPCTI) MIM:610092
- Microphthalmia/Coloboma 3 (MCOPCB3) MIM:610092
Disease | GeneticClinVar
53 pathogenic / likely-pathogenic of 533 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Isolated microphthalmia 2
- Microphthalmia
- Microphthalmia, isolated, with coloboma 3
- Microphthalmia, cataracts, and iris abnormalities
- VSX2-related Microphthalmia
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)
- 1.04
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.56
- DepMap mean gene effect
- -0.02
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell fate commitment
- central nervous system neuron differentiation
- negative regulation of neuroblast proliferation
- negative regulation of transcription by RNA polymerase II
- neuroblast proliferation
- positive regulation of cell population proliferation
- positive regulation of transcription by RNA polymerase II
- regulation of transcription by RNA polymerase II
- retinal bipolar neuron differentiation
- visual perception
Molecular functions
- DNA-binding transcription factor activity, RNA polymerase II-specific
- DNA-binding transcription repressor activity, RNA polymerase II-specific
- RNA polymerase II transcription regulatory region sequence-specific DNA binding
- sequence-specific double-stranded DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Homeodomain
- OAR domain
- Homedomain-like superfamily
- Homeobox, conserved site
- CVC domain
- Homeodomain
- OAR motif
- Visual system homeobox transcriptional regulators
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of VSX2 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 VSX2 as an antibody target. Whether an autoantibody or antibody against VSX2 could matter depends on whether native VSX2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
VSX2 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 VSX2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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