TMCC1

Chr 3

transmembrane and coiled-coil domain family 1

Enables identical protein binding activity. Involved in several processes, including endosome fission; endosome membrane tubulation; and membrane fission. Located in cytosol; endoplasmic reticulum-endosome membrane contact site; and rough endoplasmic reticulum. [provided by Alliance of Genome Resources, Jul 2025]

ResearchGenerating clinical summary…
LOEUF 0.39
Clinical SummaryTMCC1
Population Constraint (gnomAD)
Moderately constrained gene (pLI 0.85) — some intolerance to loss-of-function variants.
📋
ClinVar Variants
46 VUS of 56 total submissions
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint?
0.39LOEUF
pLI 0.845
Z-score 3.75
OE 0.17 (0.080.39)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?
3.06Z-score
OE missense 0.55 (0.490.62)
199 obs / 363.3 exp
Mild constraint

Moderately missense-constrained (top ~2.5%)

Observed / Expected Ratios?
LoF OE?0.17 (0.080.39)
00.351.4
Missense OE?0.55 (0.490.62)
00.61.4
Synonymous OE?0.91
01.21.6
LoF obs/exp: 4 / 23.7Missense obs/exp: 199 / 363.3Syn Z: 0.86

ClinVar Variant Classifications

56 submitted variants in ClinVar

Classification Summary

VUS46
Benign1
46
VUS
1
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
0
0
0
Likely Pathogenic
0
0
0
0
0
VUS
0
46
0
0
46
Likely Benign
0
0
0
0
0
Benign
0
1
0
0
1
Total0470047

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

11 pathogenic / likely-pathogenic (of 16) ClinVar copy-number / structural variants overlap TMCC1 — these span large chromosomal regions, not the gene specifically, and are excluded from the counts above. Explore in CNV tools →

Protein Context — Lollipop Plot

TMCC1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →