TMEM178A

protein-coding

transmembrane protein 178A

Gene summary

Predicted to be involved in negative regulation of osteoclast differentiation and regulation of cytosolic calcium ion concentration. Predicted to be located in membrane. Predicted to be active in endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Jun 2026]

Previous symbols:
  • TMEM178

MANE transcript

NM_152390.3

Inheritance

—

ClinVar variants

U:36

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.16

Max pathogenic AF

—

Genomic locus

chr2:39,664,982-39,717,963

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~53.0 kb
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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 TMEM178A variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 34

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_152390.3. 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.

EffectPLPVUSLBBSum
synonymous
0
missense
36
clinvar
36
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00360036
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 22 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_152390.3RefSeqNP_689603.24MANE Select
ENST00000281961.3EnsemblENSP00000281961.24MANE Select
NM_001167959.2RefSeqNP_001161431.12Standard
ENST00000897340.1EnsemblENSP00000567399.13Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • negative regulation of osteoclast differentiation
  • regulation of cytosolic calcium ion concentration

Cellular Component

  • endoplasmic reticulum membrane
  • integral component of membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000281961
Coding exons
4
Length
52982
Individuals with no LoFs
125282
Homozygous LoFs
0
Heterozygous LoFs
3
Defined
125285
p
0.0000120
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.79931560.5960.000008691877
Missense (PolyPhen)2155.0040.38179609
Synonymous-1.308369.31.200.00000423626
Loss of Function2.72212.30.1637.92e-7121

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000580.000058rare
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)0.00000890.0000089rare
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Acts as a negative regulator of osteoclast differentiation in basal and inflammatory conditions by regulating TNFSF11-induced Ca (2+) fluxes, thereby controlling the induction of NFATC1. {ECO:0000250|UniProtKB:Q9CZ16}.;

Essentials

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

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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