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TXN2 p.His86=

c.258C>T · rs570428102 · VCV708017

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0333%, afr)

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
ConservationphyloP -1.1GERP -4.6
Overall
CADD7.376PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0333% African / African-American · 25/75,046 alleles
Filtering AF 0.0231% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0197%
Overall 0.00322% 52/1,613,314 alleles · ultra-rare exomes 44/1,460,956 · genomes 8/152,358 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0333% 3,002
Remaining individualsnot grpmax-eligible 0.0048% 20,813
South Asian 0.0022% 45,506
European (non-Finnish) 0.00178% 56,179
Admixed American 0.00167% 60,008

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
TXN2
Protein
p.His86=
Coding
c.258C>T
MANE Select
NM_012473
dbSNP
rs570428102
Type
single nucleotide variant
Location
chr22:36480580 (GRCh38)
Gene constraint
LOEUF 1.358 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 84.10 · 3 PDB
Residue 86
a β-strand; the thioredoxin domain
Full TXN2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/txn2-p-his86 (accessed [today's date]).

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