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TRPC3 p.Pro638=

c.1914C>T · VCV4777493

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.48e-05%, nfe)

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 1GERP 1.3, phastCons 0.99
Overall
CADD9.313PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 8.48e-05% European (non-Finnish) · 1/1,179,558 alleles
Overall 6.2e-05% 1/1,613,432 alleles · very rare exomes 1/1,461,314 · genomes 0/152,118 · 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
TRPC3
Protein
p.Pro638=
Coding
c.1914C>T
MANE Select
NM_001130698
Type
single nucleotide variant
Location
chr4:121907446 (GRCh38)
Gene constraint
LOEUF 0.751 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 78.42 · 19 PDB
Residue 638
an α-helix
Full TRPC3 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/trpc3-p-pro638 (accessed [today's date]).

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