TMEM249
Chr 8catsper channel auxiliary subunit theta
Also known as: C8ORFK29, TMEM249
Predicted to be involved in flagellated sperm motility and sperm capacitation. Predicted to be located in sperm principal piece. Predicted to be part of CatSper complex. [provided by Alliance of Genome Resources, Jun 2026]
ResearchGenerating clinical summary…
Clinical highlights
Interpreting a novel variant
This gene is strongly intolerant of loss-of-function variation in the population, so LoF variants warrant close attention. No curated mechanism annotation is available — see the mechanism card for the computational prediction and its caveats.Based on population constraint only.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Tolerant — LoF & missense variants common in population
LoF Constraint?
0.85LOEUF
pLI 0.105
Z-score 1.88
OE 0.33 (0.15–0.85)
Typical tolerance to LoF variation
Missense Constraint?
0.88Z-score
OE missense 0.80 (0.69–0.93)
120 obs / 150.6 exp
Mild missense constraint
Observed / Expected Ratios?
LoF OE?0.33 (0.15–0.85)
0≤0.351.4
Missense OE?0.80 (0.69–0.93)
0≤0.61.4
Synonymous OE?1.05
0≤1.21.6
LoF obs/exp: 3 / 9.1Missense obs/exp: 120 / 150.6Syn Z: -0.31
ClinVar Variant Classifications
0 submitted variants in ClinVar
Protein Context — Lollipop Plot
TMEM249 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools