TGFB2 p.Pro351=
c.1053G>A · rs142741166 · VCV374978
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00801%, afr)
Conditions
1
Loeys-Dietz syndrome 4
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 -20 | GERP -4.1 |
| Overall | ||
| CADD | 0.04 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00801%
African / African-American · 6/74,948 alleles
Filtering AF
0.00347%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00228%
Overall
0.00273%
44/1,613,196 alleles · very rare
exomes 37/1,461,078 · genomes 7/152,118 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.00801% | 12,491 |
| Remaining individualsnot grpmax-eligible | 0.0064% | 15,617 |
| South Asian | 0.00551% | 18,164 |
| European (non-Finnish) | 0.00237% | 42,132 |
| East Asian | 0.00223% | 44,832 |
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
- TGFB2
- Protein
- p.Pro351=
- Coding
- c.1053G>A
- MANE Select
- NM_003238
- dbSNP
- rs142741166
- Type
- single nucleotide variant
- Location
- chr1:218437463 (GRCh38)
- Gene constraint
- LOEUF 0.463 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 80.41 · 11 PDB
- Residue 351
- a UniProt-annotated variant site (in lds4)
Similar variants
- TGFB2 p.Pro351Leu Uncertain significance ★★ ⚠ same residue
- TGFB2 c.346+1G>A Pathogenic/Likely pathogenic ★★ same condition
- TGFB2 c.346+1G>T Likely pathogenic ★★ same condition
- TGFB2 c.510+1G>A Likely pathogenic ★★ same condition
- TGFB2 c.932+1G>A Pathogenic/Likely pathogenic ★★ same condition
- TGFB2 c.933-1G>A Pathogenic/Likely pathogenic ★★ same condition
- TGFB2 p.Arg131Ter Pathogenic/Likely pathogenic ★★ same condition
- TGFB2 p.Arg299Gln Pathogenic/Likely 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/tgfb2-p-pro351 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown