TNC p.Thr891=
c.2673A>C · rs527237713 · VCV3058124
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.125%, sas)
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 2.4 | GERP -0.67, phastCons 1 |
| Overall | ||
| CADD | 14.96 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.125%
South Asian · 114/91,062 alleles
Filtering AF
0.106%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0994%
Overall
0.0075%
121/1,613,500 alleles · rare
exomes 111/1,461,156 · genomes 10/152,344 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.125% | 799 |
| Remaining individualsnot grpmax-eligible | 0.0112% | 8,926 |
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
- TNC
- Protein
- p.Thr891=
- Coding
- c.2673A>C
- MANE Select
- NM_002160
- dbSNP
- rs527237713
- Type
- single nucleotide variant
- Location
- chr9:115077944 (GRCh38)
- Gene constraint
- LOEUF 0.608 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 75.48 · 21 PDB
- Residue 891
- the fibronectin type-iii 3 domain
Similar variants
- TNC p.Thr891Ala Uncertain significance ★ same residue
- TNC p.Arg1127Trp Uncertain significance ★★ ⚠ same type
- TNC p.Arg608Cys Uncertain significance ★★ ⚠ same type
- TNC p.Arg669His Uncertain significance ★★ ⚠ same type
- TNC p.Arg747Trp Uncertain significance ★★ ⚠ same type
- TNC p.Asn507Lys Uncertain significance ★★ ⚠ same type
- TNC p.Asp2059Glu Uncertain significance ★★ ⚠ same type
- TNC p.Asp831Asn 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/tnc-p-thr891 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown