Is TXNRD2 p.Pro122Ser (c.364C>T) pathogenic?

TXNRD2 p.Pro122Ser (c.364C>T) is classified Uncertain significance in TXNRD2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-04-28). Very rare (popmax 0.00669%, eas); Associated with dilated cardiomyopathy.

What condition is associated with TXNRD2 p.Pro122Ser (c.364C>T)?

TXNRD2 p.Pro122Ser (c.364C>T) is associated with dilated cardiomyopathy (ClinVar).

How common is TXNRD2 p.Pro122Ser (c.364C>T) in the general population?

TXNRD2 p.Pro122Ser (c.364C>T) is very rare (popmax 0.00669%, eas) (gnomAD).

TXNRD2 p.Pro122Ser

c.364C>T · rs1432720365 · VCV1000594

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00669%, eas)

Conditions

dilated cardiomyopathy

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL	0.113	moderately benign-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5	GERP 0.46, phastCons 1
Regional constraint	o/e 0.88	unconstrained · MANE · 65 kb · p 0.0019 · regional, not allelic
Overall
CADD	7.302	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00669% East Asian · 3/44,816 alleles

Filtering AF 0.00178% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000892%

Overall 0.000186% 3/1,608,772 alleles · very rare

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: TXNRD2
Protein: p.Pro122Ser
Coding: c.364C>T
MANE Select: NM_006440
dbSNP: rs1432720365
Type: single nucleotide variant
Location: chr22:19918870 (GRCh38)
Gene constraint: LOEUF 1.18 · pLI <0.01 (gnomAD)

Full TXNRD2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

dilated cardiomyopathy — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

TXNRD2 p.Pro122Leu Uncertain significance ★★ same residue
TXNRD2 p.Pro122= Likely benign ★★ same residue
TXNRD2 p.Pro122Thr Uncertain significance ★ same residue
TXNRD2 p.Pro122Ala Uncertain significance ★ same residue
TXNRD2 c.104-1G>A Uncertain significance ★★ same condition
TXNRD2 c.104-3C>G Uncertain significance ★★ same condition
TXNRD2 c.1086+4C>T Uncertain significance ★★ same condition
TXNRD2 c.1087-2A>G Uncertain significance ★★ 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/txnrd2-p-pro122ser (accessed [today's date]).

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