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TRAK1 p.Arg552Ser

c.1654C>A · VCV4189875

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.1404 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.00133%, afr)
Missense predictors
0/3 damaging
AlphaMissense, REVEL, SaProt
Conditions
1
Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense0.1404likely benign
REVEL0.156moderately benign-leaning
SaProtLLR -5.47tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 3.9GERP 2.1, phastCons 1
Regional constrainto/e 0.92unconstrained · MANE · 111 kb · p 0.024 · regional, not allelic
Overall
CADD21.1PHRED · 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 0.00133% African / African-American · 1/74,940 alleles
Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%
Overall 0.000186% 3/1,613,330 alleles · very rare
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.00133% 74,940
European (non-Finnish) 0.00017% 589,741

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
TRAK1
Protein
p.Arg552Ser
Coding
c.1654C>A
MANE Select
NM_001042646
Type
single nucleotide variant
Location
chr3:42202662 (GRCh38)
Gene constraint
LOEUF 0.461 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 59.19
Full TRAK1 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/trak1-p-arg552ser (accessed [today's date]).

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