C6 p.Thr327=
c.981G>A · rs146851023 · VCV2176653
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00401%, afr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 4.8 | GERP 1.9, phastCons 1 |
| Overall | ||
| CADD | 11.09 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00401%
African / African-American · 3/74,890 alleles
Filtering AF
0.00106%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00083%
Overall
0.00155%
25/1,613,088 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.00401% | 24,963 |
| Admixed American | 0.00167% | 59,982 |
| European (non-Finnish) | 0.00161% | 62,073 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,448 |
| South Asian | 0.0011% | 91,050 |
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
- C6
- Protein
- p.Thr327=
- Coding
- c.981G>A
- MANE Select
- NM_000065
- dbSNP
- rs146851023
- Type
- single nucleotide variant
- Location
- chr5:41176662 (GRCh38)
- Gene constraint
- LOEUF 1.008 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 79.72 · 11 PDB
- Residue 327
- a β-strand; the macpf domain
Similar variants
- C6 p.Thr327Met Benign ★ same residue
- C6 p.Arg596Ter Pathogenic/Likely pathogenic ★★ same type
- C6 p.Arg606Ter Pathogenic ★★ same type
- C6 p.Cys218Ter Pathogenic/Likely pathogenic ★★ same type
- C6 p.Tyr683Ter Pathogenic/Likely pathogenic ★★ same type
- C6 p.Ala21Val Uncertain significance ★★ ⚠ same type
- C6 p.Ala396Gly Uncertain significance ★★ ⚠ same type
- C6 p.Ala456Thr 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/c6-p-thr327 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown