MVB12A

protein-coding

multivesicular body subunit 12A, the group of ESCRT-I

Gene summary

Enables lipid binding activity and ubiquitin binding activity. Involved in regulation of epidermal growth factor receptor signaling pathway. Located in centrosome; cytosol; and vesicle. Part of ESCRT I complex. [provided by Alliance of Genome Resources, Jun 2026]

Previous symbols:
  • FAM125A

MANE transcript

NM_138401.4

Inheritance

—

ClinVar variants

U:50B:4

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.67

Max pathogenic AF

—

Genomic locus

chr19:17,405,722-17,433,724

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~28.0 kb
Loading mutation effect viewer...

GenCC 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 MVB12A variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 51

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_138401.4. 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
0
missense
48
clinvar
4
clinvar
52
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
2
clinvar
2
Total00504054
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 27 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_138401.4RefSeqNP_612410.19MANE Select
ENST00000317040.12EnsemblENSP00000324810.69MANE Select
NM_001304547.2RefSeqNP_001291476.17Standard
ENST00000528515.5EnsemblENSP00000433677.17Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Endocytosis - Homo sapiens (human)
  • Disease
  • Vesicle-mediated transport
  • Membrane Trafficking
  • Assembly Of The HIV Virion

Biological Process

  • protein transport
  • endosomal transport
  • macroautophagy
  • viral life cycle
  • virus maturation

Molecular Function

  • protein binding
  • lipid binding
  • SH3 domain binding
  • ubiquitin binding

Cellular Component

  • ESCRT I complex
  • nucleoplasm
  • Golgi apparatus
  • centrosome
  • cytosol

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000317040
Coding exons
9
Length
28003
Individuals with no LoFs
125709
Homozygous LoFs
0
Heterozygous LoFs
38
Defined
125747
p
0.000151
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense-0.2021671601.040.000008781724
Missense (PolyPhen)6460.3831.0599675
Synonymous0.9215968.70.8590.00000376584
Loss of Function1.191015.00.6678.84e-7155

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.000260.00026rare
Ashkenazi Jewish00.0absent
East Asian0.000220.00022rare
Finnish0.0000490.000046rare
European (Non-Finnish)0.000120.00012rare
South Asian0.000330.00033rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Component of the ESCRT-I complex, a regulator of vesicular trafficking process. Required for the sorting of endocytic ubiquitinated cargos into multivesicular bodies. May be involved in the ligand-mediated internalization and down- regulation of EGF receptor. {ECO:0000269|PubMed:16895919}.;

Intolerance Scores

RVIS EVS
0.35
RVIS percentile EVS
74.37

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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