Is TGFBR2 p.Pro25Ser (c.73C>T) pathogenic?

TGFBR2 p.Pro25Ser (c.73C>T) is classified Uncertain significance in TGFBR2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-23). AlphaMissense: likely benign (0.0779); Very rare (popmax 8.51e-05%, nfe); Associated with familial thoracic aortic aneurysm and aortic dissection.

What condition is associated with TGFBR2 p.Pro25Ser (c.73C>T)?

TGFBR2 p.Pro25Ser (c.73C>T) is associated with familial thoracic aortic aneurysm and aortic dissection (ClinVar).

How common is TGFBR2 p.Pro25Ser (c.73C>T) in the general population?

TGFBR2 p.Pro25Ser (c.73C>T) is very rare (popmax 8.51e-05%, nfe) (gnomAD).

What do computational predictors say about TGFBR2 p.Pro25Ser (c.73C>T)?

AlphaMissense predicts likely benign (score 0.0779) — an in-silico prediction, not a clinical call.

TGFBR2 p.Pro25Ser

Q: How is Familial thoracic aortic aneurysm and aortic dissection inherited?

Typically Autosomal dominant (Orphanet). A genetic counselor can assess individual risk for a family.

c.73C>T · VCV4757056

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0779 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.51e-05%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

familial thoracic aortic aneurysm and aortic dissection

Computational evidence

Protein change
AlphaMissense	0.0779	likely benign
REVEL	0.269	benign-leaning
SaProt	LLR -5.47	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.5	GERP 1.2, phastCons 1
Regional constraint	o/e 0.79	unconstrained · MANE · 65 kb · p 3e-06 · regional, not allelic
Overall
CADD	22.4	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.51e-05% European (non-Finnish) · 1/1,174,616 alleles

Overall 6.24e-05% 1/1,601,914 alleles · very rare exomes 1/1,449,654 · genomes 0/152,260 · 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: TGFBR2
Protein: p.Pro25Ser
Coding: c.73C>T
MANE Select: NM_003242
Type: single nucleotide variant
Location: chr3:30606956 (GRCh38)
Gene constraint: LOEUF 0.531 · pLI 0.91 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 81.22 · 22 PDB

Full TGFBR2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

familial thoracic aortic aneurysm and aortic dissection — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Familial thoracic aortic aneurysm and aortic dissection (Orphanet):

Inheritance: Autosomal dominant
Onset: Adolescent, Adult, Childhood

Similar variants

TGFBR2 p.Pro25= Benign/Likely benign ★★ same residue
TGFBR2 p.Ala414Pro Pathogenic/Likely pathogenic ★★ same condition
TGFBR2 p.Ala527Thr Likely pathogenic ★★ same condition
TGFBR2 p.Ala527Val Pathogenic/Likely pathogenic ★★ same condition
TGFBR2 p.Arg356Pro Pathogenic/Likely pathogenic ★★ same condition
TGFBR2 p.Arg378Ser Pathogenic/Likely pathogenic ★★ same condition
TGFBR2 p.Arg460Cys Pathogenic ★★ same condition
TGFBR2 p.Arg460Gly 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/tgfbr2-p-pro25ser (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown