EFNA2
protein-codingephrin A2, the group of Ephrins
Gene summary
This gene encodes a member of the ephrin family. The protein is composed of a signal sequence, a receptor-binding region, a spacer region, and a hydrophobic region. The EPH and EPH-related receptors comprise the largest subfamily of receptor protein-tyrosine kinases and have been implicated in mediating developmental events, particularly in the nervous system. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. Posttranslational modifications determine whether this protein localizes to the nucleus or the cytoplasm. [provided by RefSeq, Jul 2008]
- EPLG6
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~15.6 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to EFNA2 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_001405.4. 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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 33 | 1 | 34 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 35 | 1 | 0 | 36 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_001396.2 | 4 | MANE Select | |
| Ensembl | ENSP00000215368.1 | 4 | MANE Select | |
| RefSeq | XP_016881938.1 | 5 | Standard | |
| RefSeq | XP_016881939.1 | 5 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- PI3K-Akt signaling pathway - Homo sapiens (human)
- Axon guidance - Homo sapiens (human)
- Rap1 signaling pathway - Homo sapiens (human)
- Ras signaling pathway - Homo sapiens (human)
- MAPK signaling pathway - Homo sapiens (human)
Biological Process
- cell-cell signaling
- axon guidance
- olfactory bulb development
- osteoclast differentiation
- bone remodeling
Molecular Function
- protein binding
- ephrin receptor binding
Cellular Component
- plasma membrane
- anchored component of membrane
- neuromuscular junction
- perikaryon
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000215368
- Coding exons
- 4
- Length
- 15278
- Individuals with no LoFs
- 125535
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 7
- Defined
- 125542
- p
- 0.0000279
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 1.25 | 71 | 107 | 0.661 | 0.00000671 | 1336 |
| Missense (PolyPhen) | 17 | 35.046 | 0.48508 | 429 | ||
| Synonymous | 0.0645 | 51 | 51.6 | 0.989 | 0.00000377 | 429 |
| Loss of Function | 1.27 | 3 | 6.48 | 0.463 | 3.59e-7 | 89 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.000073 | 0.000062 | rare |
| Latino/Admixed American | 0.000060 | 0.000058 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.000055 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000027 | 0.000026 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Cell surface GPI-bound ligand for Eph receptors, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development. Binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. With the EPHA2 receptor may play a role in bone remodeling through regulation of osteoclastogenesis and osteoblastogenesis (By similarity). {ECO:0000250}.;
Recessive Scores
- pRec
- 0.236
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.801
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Low | Medium |
| Primary Immunodeficiency | Medium | Low | Medium |
| Cancer | Medium | Medium | Medium |