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TFR2 p.Arg652=

c.1956G>A · rs1170988281 · VCV911963

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0212%, mid)
Conditions
2
hereditary hemochromatosis

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 -0.23GERP 0.79, phastCons 0.17
Overall
CADD8.154PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0212% Middle Eastern · 1/4,706 alleles
Filtering AF 7e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%
Overall 0.000323% 5/1,549,484 alleles · ultra-rare exomes 4/1,397,260 · genomes 1/152,224 · joint denominator
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.0212% 4,706
Remaining individualsnot grpmax-eligible 0.00167% 59,932
European (non-Finnish) 0.000262% 382,288

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
TFR2
Protein
p.Arg652=
Coding
c.1956G>A
MANE Select
NM_003227
dbSNP
rs1170988281
Type
single nucleotide variant
Location
chr7:100627303 (GRCh38)
Gene constraint
LOEUF 0.907 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 83.98
Full TFR2 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/tfr2-p-arg652 (accessed [today's date]).

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