Is PER3 p.Pro1063Ser (c.3187C>T) pathogenic?

PER3 p.Pro1063Ser (c.3187C>T) is classified Uncertain significance in PER3 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-04). AlphaMissense: likely benign (0.0767); Very rare (popmax 0.00167%, amr).

How common is PER3 p.Pro1063Ser (c.3187C>T) in the general population?

PER3 p.Pro1063Ser (c.3187C>T) is very rare (popmax 0.00167%, amr) (gnomAD).

What do computational predictors say about PER3 p.Pro1063Ser (c.3187C>T)?

AlphaMissense predicts likely benign (score 0.0767) — an in-silico prediction, not a clinical call.

PER3 p.Pro1063Ser

c.3187C>T · VCV4566932

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0767 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00167%, amr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0767	likely benign
REVEL	0.102	moderately benign-leaning
SaProt	LLR -6.73	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.52	GERP 0.67
Regional constraint	o/e 1.00	unconstrained · MANE · 13 kb · p 0.97 · regional, not allelic
Overall
CADD	9.12	PHRED · 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.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM P1054S vs ClinVar P1063S) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00167% Admixed American · 1/60,010 alleles

Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%

Overall 0.00031% 5/1,614,028 alleles · very rare exomes 4/1,461,772 · genomes 1/152,256 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00167%	60,010
Remaining individualsnot grpmax-eligible	0.0016%	62,482
European (non-Finnish)	0.000254%	393,326

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.Pro1063Ser
Coding: c.3187C>T
MANE Select: NM_001377275
Type: single nucleotide variant
Location: chr1:7830134 (GRCh38)
Gene constraint: LOEUF 1.009 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 54.62
Residue 1054 UniProt numbering: the 'disordered' region; the '5 x 18 aa tandem repeats of s-[hp]-[ap]-t-[at]-[gst]-[atv]-l-s-[mt]-g-[ls]-p-p-[mrs]-[ekr]-[nst]-p' region

Full PER3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

PER3 p.Pro1063Ala Uncertain significance ★ ⚠ same residue
PER3 p.Arg157His Uncertain significance ★★ ⚠ same type
PER3 p.Asn572Thr Uncertain significance ★★ ⚠ same type
PER3 p.Ala980= Benign ★★ same type
PER3 p.Cys1185Ser Benign ★★ same type
PER3 p.Ile614= Benign ★★ same type
PER3 p.Leu937= Likely benign ★★ same type
PER3 p.Thr527Ala Likely benign ★★ same type

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-pro1063ser (accessed [today's date]).

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