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ERCC3 p.Phe297Ser

c.890T>C · rs145267069 · VCV1520987

Uncertain significance Multiple submitters
Classification
Uncertain significance
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
AlphaMissense
likely pathogenic
0.9992 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.000509%, nfe)
Missense predictors
3/3 damaging
AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense0.9992likely pathogenic · top 5% in ERCC3
REVEL0.821moderately pathogenic-leaning
SaProtLLR -15.86damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 11GERP 2, phastCons 1
Regional constrainto/e 0.84unconstrained · MANE · 36 kb · p 4.8e-07 · regional, not allelic
Overall
CADD32.0PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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 0.000509% European (non-Finnish) · 6/1,179,920 alleles
Filtering AF 0.000183% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00012%
Overall 0.00149% 24/1,613,876 alleles · very rare
Ancestry group Frequency 1 in
Finnishnot grpmax-eligible 0.0266% 3,766
Remaining individualsnot grpmax-eligible 0.0016% 62,474
European (non-Finnish)grpmax 0.000509% 196,653

Finnish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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
ERCC3
Protein
p.Phe297Ser
Coding
c.890T>C
MANE Select
NM_000122
dbSNP
rs145267069
Type
single nucleotide variant
Location
chr2:127288797 (GRCh38)
Gene constraint
LOEUF 0.797 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 76.34 · 56 PDB
Residue 297
an α-helix
Full ERCC3 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/ercc3-p-phe297ser (accessed [today's date]).

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