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TRRAP p.Ala522=

c.1566C>A · rs2484713169 · VCV3067669

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00017%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.046moderately benign-leaning
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP -0.46GERP -0.14, phastCons 0.025
Overall
CADD3.284PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00017% European (non-Finnish) · 2/1,178,530 alleles
Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%
Overall 0.000125% 2/1,598,910 alleles · very rare exomes 2/1,449,680 · genomes 0/149,230 · joint denominator

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
TRRAP
Protein
p.Ala522=
Coding
c.1566C>A
MANE Select
NM_001375524
dbSNP
rs2484713169
Type
single nucleotide variant
Location
chr7:98910271 (GRCh38)
Gene constraint
LOEUF 0.115 · pLI 1.00 · ClinGen HI 1/3 (gnomAD)
Residue 522
the 'disordered' region
Full TRRAP 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/trrap-p-ala522 (accessed [today's date]).

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