Is ERC2 p.Thr118Ile (c.353C>T) pathogenic?

ERC2 p.Thr118Ile (c.353C>T) is classified Uncertain significance in ERC2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-09-20). AlphaMissense: likely benign (0.1577); Absent from gnomAD v4.1.

How common is ERC2 p.Thr118Ile (c.353C>T) in the general population?

ERC2 p.Thr118Ile (c.353C>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about ERC2 p.Thr118Ile (c.353C>T)?

AlphaMissense predicts likely benign (score 0.1577) — an in-silico prediction, not a clinical call.

ERC2 p.Thr118Ile

c.353C>T · VCV3509794

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1577 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1577	likely benign
REVEL	0.074	moderately benign-leaning
SaProt	LLR -6.77	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 9.9	GERP 1.9, phastCons 1
Regional constraint	o/e 0.91	unconstrained · MANE · 139 kb · p 0.13 · regional, not allelic
Overall
CADD	23.5	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.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: ERC2
Protein: p.Thr118Ile
Coding: c.353C>T
MANE Select: NM_015576
Type: single nucleotide variant
Location: chr3:56434655 (GRCh38)
Gene constraint: LOEUF 0.476 · pLI 0.99 (gnomAD)
Structure: AlphaFold pLDDT 74.26

Full ERC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ERC2 p.Ala105Ser Uncertain significance ★ ⚠ same type
ERC2 p.Ala107Thr Uncertain significance ★ ⚠ same type
ERC2 p.Ala202Val Uncertain significance ★ ⚠ same type
ERC2 p.Ala251Val Uncertain significance ★ ⚠ same type
ERC2 p.Ala333Ser Uncertain significance ★ ⚠ same type
ERC2 p.Ala371Pro Uncertain significance ★ ⚠ same type
ERC2 p.Ala724Thr Uncertain significance ★ ⚠ same type
ERC2 p.Ala835Thr Uncertain significance ★ ⚠ 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/erc2-p-thr118ile (accessed [today's date]).

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