TEK p.Asn649=
c.1947C>T · VCV4683375
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.005%, amr)
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 -1.1 | GERP -0.15 |
| Overall | ||
| CADD | 6.812 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.005%
Admixed American · 3/60,002 alleles
Filtering AF
0.00133%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000668%
Overall
0.000248%
4/1,613,996 alleles · very rare
exomes 1/1,461,812 · genomes 3/152,184 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.005% | 20,001 |
| European (non-Finnish) | 8.47e-05% | 1,179,993 |
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.Asn649=
- Coding
- c.1947C>T
- MANE Select
- NM_000459
- Type
- single nucleotide variant
- Location
- chr9:27202857 (GRCh38)
- Gene constraint
- LOEUF 0.368 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 84.37 · 17 PDB
- Residue 649
- the fibronectin type-iii 3 domain
Similar variants
- TEK p.Arg1099Ter Pathogenic ★★ same type
- TEK p.Arg849Trp Pathogenic ★★ ⚠ same type
- TEK p.Arg915Cys Pathogenic/Likely pathogenic ★★ same type
- TEK p.Arg915His Pathogenic/Likely pathogenic ★★ same type
- TEK p.Arg918Cys Pathogenic/Likely pathogenic ★★ same type
- TEK p.Gln518Ter Pathogenic/Likely pathogenic ★★ same type
- TEK p.Glu1109Ter Pathogenic/Likely pathogenic ★★ same type
- TEK p.Tyr897Asn 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/tek-p-asn649 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown