PRRC2C p.Ser2177Pro
c.6529T>C · VCV4145546
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0125%, nfe)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.175 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
| Constraint at this position | ||
| Conservation | phyloP 2.4 | GERP 2.1, phastCons 1 |
| Regional constraint | o/e 0.95 | unconstrained · MANE · 21 kb · p 0.17 · regional, not allelic |
| Overall | ||
| CADD | 17.71 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0125%
European (non-Finnish) · 148/1,179,820 alleles
Filtering AF
0.0109%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0102%
Overall
0.00936%
151/1,613,622 alleles · ultra-rare
exomes 147/1,461,376 · genomes 4/152,246 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.0125% | 7,972 |
| Remaining individualsnot grpmax-eligible | 0.0032% | 31,242 |
| African / African-American | 0.00133% | 74,998 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- PRRC2C
- Protein
- p.Ser2177Pro
- Coding
- c.6529T>C
- MANE Select
- NM_001387844
- Type
- single nucleotide variant
- Location
- chr1:171566814 (GRCh38)
- Gene constraint
- LOEUF 0.287 · pLI 1.00 (gnomAD)
Similar variants
- PRRC2C c.1055+2T>C Uncertain significance ★ same type
- PRRC2C p.Ala104Thr Uncertain significance ★ same type
- PRRC2C p.Ala1120Thr Uncertain significance ★ same type
- PRRC2C p.Ala1762Ser Uncertain significance ★ same type
- PRRC2C p.Ala1774Ser Uncertain significance ★ same type
- PRRC2C p.Ala1785Val Uncertain significance ★ same type
- PRRC2C p.Ala1927Thr Uncertain significance ★ same type
- PRRC2C p.Ala1930Val Uncertain significance ★ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/prrc2c-p-ser2177pro (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown