MAEA
protein-codingmacrophage erythroblast attacher, E3 ubiquitin ligase, the group of CTLH complex
Gene summary
This gene encodes a protein that mediates the attachment of erythroblasts to macrophages. This attachment promotes terminal maturation and enucleation of erythroblasts, presumably by suppressing apoptosis. The encoded protein is an integral membrane protein with the N-terminus on the extracellular side and the C-terminus on the cytoplasmic side of the cell. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~50.3 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 MAEA variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_001017405.3. 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 | 2 | 3 | |||
| missense | 49 | 1 | 50 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 50 | 2 | 2 | 54 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_001017405.1 | 9 | MANE Select | |
| Ensembl | ENSP00000302830.4 | 9 | MANE Select | |
| RefSeq | NP_001284359.1 | 8 | Standard | |
| RefSeq | NP_001284360.1 | 7 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Biological Process
- ubiquitin-dependent protein catabolic process
- cytoskeleton organization
- cell cycle
- cell adhesion
- regulation of mitotic cell cycle
Molecular Function
- actin binding
- ubiquitin-protein transferase activity
- metal ion binding
Cellular Component
- ubiquitin ligase complex
- nucleus
- nucleoplasm
- cytoplasm
- spindle
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000303400
- Coding exons
- 9
- Length
- 50297
- Individuals with no LoFs
- 125707
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 9
- Defined
- 125716
- p
- 0.0000358
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 2.57 | 158 | 279 | 0.567 | 0.0000198 | 2618 |
| Missense (PolyPhen) | 39 | 87.326 | 0.4466 | 860 | ||
| Synonymous | -1.29 | 135 | 117 | 1.15 | 0.00000903 | 752 |
| Loss of Function | 3.15 | 5 | 20.3 | 0.246 | 0.00000105 | 220 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.000063 | 0.000062 | rare |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0.00010 | 0.000099 | rare |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000045 | 0.000044 | rare |
| South Asian | 0.000037 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Core component of the CTLH E3 ubiquitin-protein ligase complex that selectively accepts ubiquitin from UBE2H and mediates ubiquitination and subsequent proteasomal degradation of the transcription factor HBP1. MAEA and RMND5A are both required for catalytic activity of the CTLH E3 ubiquitin-protein ligase complex (PubMed:29911972). MAEA is required for normal cell proliferation (PubMed:29911972). The CTLH E3 ubiquitin-protein ligase complex is not required for the degradation of enzymes involved in gluconeogenesis, such as FBP1 (PubMed:29911972). Plays a role in erythroblast enucleation during erythrocyte maturation and in the development of mature macrophages (By similarity). Mediates the attachment of erythroid cell to mature macrophages; this MAEA- mediated contact inhibits erythroid cell apoptosis (PubMed:9763581). Participates in erythroblastic island formation, which is the functional unit of definitive erythropoiesis. Associates with F-actin to regulate actin distribution in erythroblasts and macrophages (By similarity). May contribute to nuclear architecture and cells division events (Probable). {ECO:0000250|UniProtKB:Q4VC33, ECO:0000269|PubMed:29911972, ECO:0000269|PubMed:9763581, ECO:0000305|PubMed:16510120}.;
Recessive Scores
- pRec
- 0.303
Intolerance Scores
- LoFtool
- 0.434
- RVIS EVS
- -0.85
- RVIS percentile EVS
- 11.06
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- H
- Indispensability pred.
- E
- Indispensability score
- 0.765
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |