MYO18A

protein-coding

myosin XVIIIA, the group of Myosin heavy chains, class XVIII|PDZ domain containing

Gene summary

The protein encoded by this gene can bind GOLPH3, linking the Golgi to the cytoskeleton and influencing Golgi membrane trafficking. The encoded protein is also part of a complex that assembles lamellar actomyosin bundles and may be required for cell migration. [provided by RefSeq, Oct 2016]

Previous symbols:
  • TIAF1

MANE transcript

NM_078471.4

Inheritance

—

ClinVar variants

U:339B:34

Top phenotype

MYO18A-related disorder

gnomAD constraint

pLI —, LoF o/e 0.2

Max pathogenic AF

—

Genomic locus

chr17:29,071,122-29,180,398

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~109.3 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 MYO18A variants in ClinVar

9 Conditions Cataloged
not specifiedTotal: 307
not providedTotal: 32
MYO18A-related disorderTotal: 8
sellar metastasis from primary bronchial carcinoid tumorTotal: 1
Multiple joint contracturesTotal: 1
Prostate cancerTotal: 1
Abnormal facial shapeTotal: 1
Hydrops fetalisTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_078471.4. 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
8
clinvar
6
clinvar
12
clinvar
26
missense
320
clinvar
13
clinvar
2
clinvar
335
nonsense
4
clinvar
4
start loss
0
frameshift
1
clinvar
1
clinvar
2
splice donor/acceptor (+/-2bp)
6
clinvar
6
Total003392014373
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 34 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_078471.4RefSeqNP_510880.241MANE Select
ENST00000527372.7EnsemblENSP00000437073.141MANE Select
NM_001346765.2RefSeqNP_001333694.142Standard
NM_001346766.2RefSeqNP_001333695.141Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
myo18aaDanio rerio

Structure: muscle cell

Quality: disorganized

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Disease
  • Signaling by FGFR in disease
  • Signaling by cytosolic FGFR1 fusion mutants
  • FGFR1 mutant receptor activation
  • Signaling by FGFR1 in disease

Biological Process

  • DNA metabolic process
  • Golgi organization
  • cell migration
  • actomyosin structure organization
  • regulation of macrophage activation

Molecular Function

  • DNA binding
  • RNA binding
  • protein binding
  • ATP binding
  • ATPase activity

Cellular Component

  • Golgi membrane
  • endoplasmic reticulum-Golgi intermediate compartment
  • trans-Golgi network
  • cell surface
  • membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000527372
Coding exons
41
Length
106903
Individuals with no LoFs
124978
Homozygous LoFs
0
Heterozygous LoFs
33
Defined
125011
p
0.000132
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense2.4510001.24e+30.8040.000083013298
Missense (PolyPhen)386524.630.735765592
Synonymous1.894495030.8930.00003193973
Loss of Function7.49201010.1970.000005301170

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000260.00025rare
Latino/Admixed American0.0000870.000087rare
Ashkenazi Jewish0.0000990.000099rare
East Asian0.0000560.000056rare
Finnish00.0absent
European (Non-Finnish)0.000190.00018rare
South Asian0.0000650.000065rare
Other0.000330.00033rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: May link Golgi membranes to the cytoskeleton and participate in the tensile force required for vesicle budding from the Golgi. Thereby, may play a role in Golgi membrane trafficking and could indirectly give its flattened shape to the Golgi apparatus (PubMed:19837035, PubMed:23345592). Alternatively, in concert with LURAP1 and CDC42BPA/CDC42BPB, has been involved in modulating lamellar actomyosin retrograde flow that is crucial to cell protrusion and migration (PubMed:18854160). May be involved in the maintenance of the stromal cell architectures required for cell to cell contact (By similarity). Regulates trafficking, expression, and activation of innate immune receptors on macrophages. Plays a role to suppress inflammatory responsiveness of macrophages via a mechanism that modulates CD14 trafficking (PubMed:25965346). Acts as a receptor of surfactant-associated protein A (SFTPA1/SP-A) and plays an important role in internalization and clearance of SFTPA1-opsonized S.aureus by alveolar macrophages (PubMed:16087679, PubMed:21123169). Strongly enhances natural killer cell cytotoxicity (PubMed:27467939). {ECO:0000250|UniProtKB:Q9JMH9, ECO:0000269|PubMed:16087679, ECO:0000269|PubMed:18854160, ECO:0000269|PubMed:19837035, ECO:0000269|PubMed:21123169, ECO:0000269|PubMed:23345592, ECO:0000269|PubMed:25965346, ECO:0000269|PubMed:27467939}.;

Recessive Scores

pRec
0.144

Intolerance Scores

LoFtool
0.118
RVIS EVS
-1.62
RVIS percentile EVS
2.9

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
S
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.854

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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