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TMPRSS6 p.Val786Ile

c.2356G>A · rs139105452 · VCV262727

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 7 submitters
AlphaMissense
likely benign
0.1303 · ACMG-weighted
gnomAD v4.1
Rare
low-frequency (popmax 1.17%, nfe)
Missense predictors
0/2 damaging
AlphaMissense, SaProt · REVEL no call
Conditions
1
microcytic anemia

Computational evidence

Protein change
AlphaMissense0.1303likely benign
REVEL0.621indeterminate
SaProtLLR -7.81tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 7.6GERP 2.3, phastCons 1
Regional constrainto/e 0.95unconstrained · MANE · 37 kb · p 0.097 · regional, not allelic
Overall
CADD25.5PHRED · no single calibrated threshold — expert panels disagree

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

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM V795I vs ClinVar V786I) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 1.17% European (non-Finnish) · 13,856/1,179,966 alleles
Filtering AF 1.16% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.15%
Overall 1.01% 16,267/1,613,366 alleles · low-frequency
Ancestry group Frequency 1 in
Finnishnot grpmax-eligible 1.71% 58
European (non-Finnish)grpmax 1.17% 85
African / African-American 0.759% 132
Remaining individualsnot grpmax-eligible 0.742% 135
Ashkenazi Jewishnot grpmax-eligible 0.581% 172
Admixed American 0.155% 645
Middle Eastern 0.0495% 2,021
South Asian 0.0253% 3,960
East Asian 0.00223% 44,880

Finnish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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
TMPRSS6
Protein
p.Val786Ile
Coding
c.2356G>A
MANE Select
NM_001374504
dbSNP
rs139105452
Type
single nucleotide variant
Location
chr22:37066133 (GRCh38)
Gene constraint
LOEUF 0.821 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 84.69 · 1 PDB
Residue 786
the peptidase s1 domain; a disulfide bond
Full TMPRSS6 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/tmprss6-p-val786ile (accessed [today's date]).

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