FCSK p.Ser487=
c.1461C>T · rs747773026 · VCV2084976
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0297%, sas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -2 | GERP -3.1 |
| Overall | ||
| CADD | 5.803 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0297%
South Asian · 26/87,658 alleles
Filtering AF
0.0208%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0178%
Overall
0.00314%
50/1,590,442 alleles · ultra-rare
exomes 45/1,438,256 · genomes 5/152,186 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0297% | 3,371 |
| Middle Eastern | 0.0165% | 6,058 |
| African / African-American | 0.00674% | 14,845 |
| Remaining individualsnot grpmax-eligible | 0.00487% | 20,526 |
| European (non-Finnish) | 0.00128% | 77,951 |
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
- FCSK
- Protein
- p.Ser487=
- Coding
- c.1461C>T
- MANE Select
- NM_145059
- dbSNP
- rs747773026
- Type
- single nucleotide variant
- Location
- chr16:70473037 (GRCh38)
- Gene constraint
- LOEUF 1.254 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 92.20
Similar variants
- FCSK c.412-2A>G Likely pathogenic ★★ same type
- FCSK c.485-2A>G Uncertain significance ★★ same type
- FCSK p.Ala297Val Uncertain significance ★★ ⚠ same type
- FCSK p.Ala348Ser Uncertain significance ★★ ⚠ same type
- FCSK p.Ala481Thr Uncertain significance ★★ ⚠ same type
- FCSK p.Ala488Thr Uncertain significance ★★ same type
- FCSK p.Ala518Val Uncertain significance ★★ ⚠ same type
- FCSK p.Ala554Val 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/fcsk-p-ser487 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown