Is ECT2 p.Ser775Pro (c.2323T>C) pathogenic?

ECT2 p.Ser775Pro (c.2323T>C) is classified Uncertain significance in ECT2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-09-28). AlphaMissense: likely benign (0.1998); Absent from gnomAD v4.1.

How common is ECT2 p.Ser775Pro (c.2323T>C) in the general population?

ECT2 p.Ser775Pro (c.2323T>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about ECT2 p.Ser775Pro (c.2323T>C)?

AlphaMissense predicts likely benign (score 0.1998) — an in-silico prediction, not a clinical call.

ECT2 p.Ser775Pro

c.2323T>C · VCV4662984

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1998 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1998	likely benign
REVEL	0.117	moderately benign-leaning
SaProt	LLR -12.12	damaging
⇒ SaProt calls this damaging; AlphaMissense and REVEL do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.1	GERP 0.71, phastCons 1
Regional constraint	o/e 0.87	unconstrained · MANE · 66 kb · p 1.6e-05 · regional, not allelic
Overall
CADD	23.8	PHRED · no single calibrated threshold — expert panels disagree

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: ECT2
Protein: p.Ser775Pro
Coding: c.2323T>C
MANE Select: NM_001258315
Type: single nucleotide variant
Location: chr3:172807847 (GRCh38)
Gene constraint: LOEUF 0.664 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 71.17 · 3 PDB
Residue 775: the ph domain

Full ECT2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ECT2 p.His912Arg Uncertain significance ★★ ⚠ same type
ECT2 p.Pro236Ala Uncertain significance ★★ ⚠ same type
ECT2 p.Pro481= Benign ★★ same type
ECT2 c.1069-2A>G Uncertain significance ★ same type
ECT2 p.Ala258Thr Uncertain significance ★ ⚠ same type
ECT2 p.Ala850Thr Uncertain significance ★ ⚠ same type
ECT2 p.Arg169Cys Uncertain significance ★ ⚠ same type
ECT2 p.Arg194Met 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/ect2-p-ser775pro (accessed [today's date]).

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