PRM3
Chr 16protamine 3
Protamine 3 replaces histones to compact DNA in sperm chromatin during spermatogenesis, creating a highly condensed and stable DNA complex. Mutations in PRM3 cause male infertility with autosomal recessive inheritance. This gene shows tolerance to loss-of-function variants, which is consistent with its specialized role in male reproductive function.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Highly tolerant — LoF variants common in population
Mild missense constraint
The highest-scoring mechanism for this gene is gain-of-function.
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
58 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 | 17 | 0 | 17 |
Likely Pathogenic | 0 | 0 | 0 | 0 | 0 |
VUS | 0 | 23 | 12 | 0 | 35 |
Likely Benign | 0 | 2 | 1 | 0 | 3 |
Benign | 0 | 2 | 1 | 0 | 3 |
| Total | 0 | 27 | 31 | 0 | 58 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
PRM3 · 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