INSL6
Chr 9insulin like 6
Also known as: RIF1
The protein encoded by INSL6 belongs to the insulin superfamily and may function in sperm development and fertilization, with expression restricted to testicular interstitial cells. Mutations in INSL6 cause autosomal recessive cryptorchidism with or without insulin-like factor 6 deficiency, affecting male reproductive development. The gene shows very low constraint against loss-of-function variants.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Highly tolerant — LoF variants common in population
Tolerant to missense variation
The highest-scoring mechanism for this gene is dominant-negative.
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
199 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 77 | 0 | 77 |
Likely Pathogenic | 0 | 1 | 5 | 0 | 6 |
VUS | 5 | 55 | 6 | 1 | 67 |
Likely Benign | 0 | 1 | 12 | 21 | 34 |
Benign | 0 | 1 | 4 | 5 | 10 |
Conflicting | — | 3 | |||
| Total | 5 | 58 | 104 | 27 | 197 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
INSL6 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
3D Protein StructureAlphaFold
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