TEK p.Val578=
c.1734G>A · rs146405482 · VCV366429
Benign
Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0494%, sas)
Conditions
1
multiple cutaneous and mucosal venous malformations
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 -1.8 | GERP -3.7 |
| Overall | ||
| CADD | 1.536 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0494%
South Asian · 45/91,076 alleles
Filtering AF
0.0379%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0339%
Overall
0.0039%
63/1,614,094 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0494% | 2,024 |
| Remaining individualsnot grpmax-eligible | 0.016% | 6,251 |
| East Asian | 0.0111% | 8,974 |
| Admixed American | 0.00167% | 60,014 |
| European (non-Finnish) | 0.000169% | 589,998 |
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
- TEK
- Protein
- p.Val578=
- Coding
- c.1734G>A
- MANE Select
- NM_000459
- dbSNP
- rs146405482
- Type
- single nucleotide variant
- Location
- chr9:27197424 (GRCh38)
- Gene constraint
- LOEUF 0.368 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 84.37 · 17 PDB
- Residue 578
- the fibronectin type-iii 2 domain; a β-strand
Similar variants
- TEK p.Arg1099Ter Pathogenic ★★ same condition
- TEK p.Arg849Trp Pathogenic ★★ ⚠ same condition
- TEK p.Arg915Cys Pathogenic/Likely pathogenic ★★ same condition
- TEK p.Arg915His Pathogenic/Likely pathogenic ★★ same condition
- TEK p.Arg918Cys Pathogenic/Likely pathogenic ★★ same condition
- TEK p.Gln518Ter Pathogenic/Likely pathogenic ★★ same condition
- TEK p.Tyr897Asn Pathogenic/Likely pathogenic ★★ ⚠ same condition
- TEK p.Tyr897Cys Pathogenic ★★ ⚠ same condition
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/tek-p-val578 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown