CTR9 c.502+137C>T
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
low-frequency (popmax 4.23%, afr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| Splice region | donor +137 | deep intronic (+137 nt into the intron) |
|---|---|---|
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP -0.61 | GERP -2.7 |
| Non-coding constraint | Z 3.43 | 1 kb window · o/e 0.75 · regional · uncalibrated |
| Overall | ||
| CADD | 2.835 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
4.23%
African / African-American · 2,190/51,782 alleles
Filtering AF
4.08%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 4.02%
Overall
0.468%
2,549/544,454 alleles · low-frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 4.23% | 24 |
| Admixed American | 0.545% | 183 |
| Remaining individualsnot grpmax-eligible | 0.482% | 207 |
| Middle Eastern | 0.343% | 291 |
| South Asian | 0.0222% | 4,510 |
| European (non-Finnish) | 0.0175% | 5,707 |
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
- CTR9
- Coding
- c.502+137C>T
- MANE Select
- NM_014633
- dbSNP
- rs145240803
- Type
- single nucleotide variant
- Location
- chr11:10755932 (GRCh38)
- Gene constraint
- LOEUF 0.368 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 76.62 · 21 PDB
Similar variants
- CTR9 p.Asn455Ser Likely pathogenic ★★ same type
- CTR9 p.Ile17Thr Pathogenic/Likely pathogenic ★★ same type
- CTR9 p.Pro25Arg Pathogenic/Likely pathogenic ★★ same type
- CTR9 c.1960+3G>A Uncertain significance ★★ same type
- CTR9 c.2109+4A>G Uncertain significance ★★ same type
- CTR9 c.2445-3T>C Uncertain significance ★★ same type
- CTR9 c.45+5G>T Uncertain significance ★★ same type
- CTR9 c.593-8T>A 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/ctr9-c-502-plus-137c-t (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown