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PER3 p.Ser356=

c.1068T>C · VCV4940381

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0214%, afr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP -2.4GERP -4.3
Overall
CADD6.429PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0214% African / African-American · 16/74,910 alleles
Filtering AF 0.0133% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0109%
Overall 0.00155% 25/1,613,330 alleles · ultra-rare exomes 17/1,461,118 · genomes 8/152,212 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0214% 4,682
Remaining individualsnot grpmax-eligible 0.0064% 15,615
South Asian 0.00549% 18,214

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
PER3
Protein
p.Ser356=
Coding
c.1068T>C
MANE Select
NM_001377275
Type
single nucleotide variant
Location
chr1:7803780 (GRCh38)
Gene constraint
LOEUF 1.009 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 54.62
Residue 356
the pac domain
Full PER3 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/per3-p-ser356 (accessed [today's date]).

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