OVOL2

protein-coding

ovo like zinc finger 2, the group of Zinc fingers C2H2-type

Gene summary

This gene encodes a member of the evolutionarily conserved ovo-like protein family. Mammalian members of this family contain a single zinc finger domain composed of a tetrad of C2H2 zinc fingers with variable N- and C-terminal extensions that contain intrinsically disordered domains. Members of this family are involved in epithelial development and differentiation. Knockout of this gene in mouse results in early embryonic lethality with phenotypes that include neurectoderm expansion, impaired vascularization, and heart anomalies. In humans, allelic variants of this gene have been associated with posterior polymorphous corneal dystrophy. [provided by RefSeq, Apr 2016]

Previous symbols:
  • ZNF339
  • CHED1

MANE transcript

NM_021220.4

Inheritance

AD

ClinVar variants

U:41B:10

Top phenotype

Corneal dystrophy, posterior polymorphous, 1

gnomAD constraint

pLI —, LoF o/e 0.12

Max pathogenic AF

—

Genomic locus

chr20:17,956,979-18,059,188

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~102.2 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

posterior polymorphous corneal dystrophy 1DEFINITIVE

Inheritance Pattern: AD

Disease ID:MONDO:0007378

Submitter: G2P

posterior polymorphous corneal dystrophy 1STRONG

Inheritance Pattern: AD

Disease ID:MONDO:0007378

Submitter: Labcorp Genetics (formerly Invitae)

posterior polymorphous corneal dystrophy 1LIMITED

Inheritance Pattern: AD

Disease ID:MONDO:0007378

Submitter: Ambry Genetics

posterior polymorphous corneal dystrophy 1STRONG

Inheritance Pattern: AD

Disease ID:MONDO:0007378

Submitter: PanelApp Australia

posterior polymorphous corneal dystrophySUPPORTIVE

Inheritance Pattern: AD

Disease ID:MONDO:0020364

Submitter: Orphanet

Clinical Genomic Database (CGD)

Corneal dystrophy, posterior polymorphous, 1AD

Manifestation: Ophthalmologic

Intervention: Ophthalmologic

Rationale: Individuals are at risk of glaucoma prior to or following corneal transplantation, and surveillance and early treatment may be beneficial

Comments: A variant in the OVOL2 promoter have been described in Corneal dystrophy, posterior polymorphous, 1

Refs: 4900143; 26749309Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to OVOL2 variants in ClinVar

5 Conditions Cataloged
not specifiedTotal: 37
not providedTotal: 15
OVOL2-related disorderTotal: 5
Posterior polymorphous corneal dystrophy 1Total: 1
See casesTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_021220.4. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
6
clinvar
6
missense
39
clinvar
2
clinvar
2
clinvar
43
nonsense
1
clinvar
1
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total00418251
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 5 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_021220.4RefSeqNP_067043.24MANE Select
ENST00000278780.7EnsemblENSP00000278780.54MANE Select
NM_001303461.1RefSeqNP_001290390.12Standard
NM_001303462.1RefSeqNP_001290391.12Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • negative regulation of transcription by RNA polymerase II
  • angiogenesis
  • neural crest cell migration
  • neural fold formation
  • heart looping

Molecular Function

  • DNA-binding transcription factor activity, RNA polymerase II-specific
  • DNA-binding transcription repressor activity, RNA polymerase II-specific
  • DNA-binding transcription activator activity, RNA polymerase II-specific
  • chromatin binding
  • sequence-specific DNA binding

Cellular Component

  • nucleus

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000278780
Coding exons
4
Length
102210
Individuals with no LoFs
125185
Homozygous LoFs
0
Heterozygous LoFs
9
Defined
125194
p
0.0000359
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.091141520.7510.000009361779
Missense (PolyPhen)5579.3470.69315764
Synonymous0.7695967.00.8800.00000449522
Loss of Function2.3618.370.1193.55e-7113

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish0.0000460.000046rare
European (Non-Finnish)0.0000710.000071rare
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Zinc-finger transcription repressor factor (PubMed:19700410). Plays a critical role in maintaining the identity of epithelial lineages by suppressing epithelial-to mesenchymal transition (EMT) mainly through the repression of ZEB1, an EMT inducer (By similarity). Positively regulates neuronal differentiation (By similarity). Suppresses cell cycling and terminal differentiation of keratinocytes by directly repressing MYC and NOTCH1 (PubMed:19700410). Important for the correct development of primordial germ cells in embryos (By similarity). {ECO:0000250|UniProtKB:Q8CIV7, ECO:0000269|PubMed:19700410}.;

Recessive Scores

pRec
0.111

Intolerance Scores

LoFtool
0.251
RVIS EVS
-0.25
RVIS percentile EVS
35.75

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.288

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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