Is ECH1 p.His69Arg (c.206A>G) pathogenic?

ECH1 p.His69Arg (c.206A>G) is classified Uncertain significance in ECH1 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-03-11). AlphaMissense: likely benign (0.2695); Very rare (popmax 8.47e-05%, nfe).

How common is ECH1 p.His69Arg (c.206A>G) in the general population?

ECH1 p.His69Arg (c.206A>G) is very rare (popmax 8.47e-05%, nfe) (gnomAD).

What do computational predictors say about ECH1 p.His69Arg (c.206A>G)?

AlphaMissense predicts likely benign (score 0.2695) — an in-silico prediction, not a clinical call.

ECH1 p.His69Arg

c.206A>G · rs1477610190 · VCV3086934

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2695 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.47e-05%, nfe)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.2695	likely benign
REVEL	0.364	indeterminate
SaProt	LLR -11.36	damaging
⇒ SaProt calls this damaging; AlphaMissense does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 2, phastCons 1
Regional constraint	o/e 1.03	unconstrained · MANE · 16 kb · p 0.49 · regional, not allelic
Overall
CADD	24.1	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

Grpmax group 8.47e-05% European (non-Finnish) · 1/1,179,964 alleles

Overall 6.84e-05% 1/1,461,746 alleles · very rare

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: ECH1
Protein: p.His69Arg
Coding: c.206A>G
MANE Select: NM_001398
dbSNP: rs1477610190
Type: single nucleotide variant
Location: chr19:38831363 (GRCh38)
Gene constraint: LOEUF 1.083 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 88.61 · 2 PDB
Residue 69: a β-strand

Full ECH1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ECH1 p.His69Gln Uncertain significance ★ ⚠ same residue
ECH1 p.Lys95Arg Uncertain significance ★★ ⚠ same type
ECH1 p.Ala226Thr Uncertain significance ★ ⚠ same type
ECH1 p.Ala237Val Uncertain significance ★ ⚠ same type
ECH1 p.Ala259Thr Uncertain significance ★ ⚠ same type
ECH1 p.Ala3Thr Uncertain significance ★ ⚠ same type
ECH1 p.Ala50Thr Uncertain significance ★ ⚠ same type
ECH1 p.Arg137Trp 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/ech1-p-his69arg (accessed [today's date]).

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