TTC19 p.Asp290=
c.870T>C · rs1971569510 · VCV3015788
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00266%, 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 -1.4 | GERP -3.4 |
| Overall | ||
| CADD | 5.55 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00266%
African / African-American · 2/75,064 alleles
Filtering AF
0.000442%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000166%
Overall
0.000124%
2/1,614,212 alleles · very rare
exomes 2/1,461,862 · genomes 0/152,350 · joint denominator
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
- TTC19
- Protein
- p.Asp290=
- Coding
- c.870T>C
- MANE Select
- NM_017775
- dbSNP
- rs1971569510
- Type
- single nucleotide variant
- Location
- chr17:16026578 (GRCh38)
- Gene constraint
- LOEUF 1.049 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 80.28
Similar variants
- TTC19 c.581+1G>C Pathogenic/Likely pathogenic ★★ same type
- TTC19 p.Gln195Ter Pathogenic/Likely pathogenic ★★ same type
- TTC19 p.Leu185Pro Pathogenic/Likely pathogenic ★★ same type
- TTC19 p.Leu219Ter Pathogenic ★★ same type
- TTC19 c.581+4A>C Uncertain significance ★★ same type
- TTC19 c.994+3A>T Uncertain significance ★★ same type
- TTC19 p.Ala122Thr Uncertain significance ★★ ⚠ same type
- TTC19 p.Ala200Val 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/ttc19-p-asp290 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown