SPATA6L

Chr 9

spermatogenesis associated 6 like

Also known as: C9orf68, bA6J24.2

The protein is predicted to bind myosin light chains and function in spermatogenesis, localizing to the sperm head-tail coupling apparatus. Mutations cause autosomal recessive primary ciliary dyskinesia with severe asthenozoospermia, typically presenting in adulthood with respiratory symptoms and male infertility. The gene is not highly constrained against loss-of-function variants.

ResearchSummary from RefSeq
MultiplemechanismLOEUF 1.74
Clinical SummarySPATA6L
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.74LOEUF
pLI 0.000
Z-score -0.93
OE 1.24 (0.881.74)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-2.46Z-score
OE missense 1.53 (1.381.69)
265 obs / 173.7 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE1.24 (0.881.74)
00.351.4
Missense OE1.53 (1.381.69)
00.61.4
Synonymous OE1.11
01.21.6
LoF obs/exp: 22 / 17.8Missense obs/exp: 265 / 173.7Syn Z: -0.70
DN
0.6839th %ile
GOF
0.6639th %ile
LOF
0.4528th %ile

This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

DNprediction above median
GOFprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

SPATA6L · protein map & ClinVar variants

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

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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