CIC p.Ser1226=
c.3678C>T · VCV3341829
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0143%, sas)
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 |
|---|---|---|
| Pangolin | Δ0.21 | gain · loss 0.14 · not in the SpliceAI release · independent |
| Constraint at this position | ||
| Conservation | phyloP -4.7 | GERP -2.7 |
| Overall | ||
| CADD | 1.456 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0143%
South Asian · 13/91,090 alleles
Filtering AF
0.00844%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00661%
Overall
0.00246%
36/1,461,760 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0143% | 7,007 |
| European (non-Finnish) | 0.00178% | 56,191 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,494 |
| African / African-American | 0.00133% | 75,040 |
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
- CIC
- Protein
- p.Ser1226=
- Coding
- c.3678C>T
- MANE Select
- NM_005984 · reported on NM_001386298
- Type
- single nucleotide variant
- Location
- chr19:42288907 (GRCh38)
- Structure
- AlphaFold pLDDT 75.09
Similar variants
- CIC c.3179+1G>A Likely pathogenic ★★ same type
- CIC c.3179+1G>T Pathogenic ★★ same type
- CIC c.5903-2A>G Likely pathogenic ★★ same type
- CIC p.Asn1136Ser Likely pathogenic ★★ same type
- CIC p.Gln1134Ter Pathogenic ★★ same type
- CIC p.Gln1799Ter Likely pathogenic ★★ same type
- SLC25A1 c.821+1G>A Pathogenic ★★ same type
- SLC25A1 p.Ala274Val Pathogenic/Likely pathogenic ★★ 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/cic-p-ser1226 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown