Is ECEL1 p.Val558Ala (c.1673T>C) pathogenic?

ECEL1 p.Val558Ala (c.1673T>C) is classified Uncertain significance in ECEL1 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-05-02). AlphaMissense: ambiguous (0.3917); Very rare (popmax 0.00167%, amr); Associated with Inborn genetic diseases.

What condition is associated with ECEL1 p.Val558Ala (c.1673T>C)?

ECEL1 p.Val558Ala (c.1673T>C) is associated with Inborn genetic diseases (ClinVar).

How common is ECEL1 p.Val558Ala (c.1673T>C) in the general population?

ECEL1 p.Val558Ala (c.1673T>C) is very rare (popmax 0.00167%, amr) (gnomAD).

What do computational predictors say about ECEL1 p.Val558Ala (c.1673T>C)?

AlphaMissense predicts ambiguous (score 0.3917) — an in-silico prediction, not a clinical call.

ECEL1 p.Val558Ala

c.1673T>C · VCV3274400

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3917 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00167%, amr)

Missense predictors

1/2 damaging

REVEL, SaProt · AlphaMissense no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.3917	ambiguous
REVEL	0.776	moderately pathogenic-leaning
SaProt	LLR -9.10	tolerated
⇒ REVEL calls this damaging; SaProt does not; AlphaMissense makes no call.
Splicing
SpliceAI	Δ0.49	donor loss, 2 bp away · masked 0 · deltas
Constraint at this position
Conservation	phyloP 9.2	GERP 5.5, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 6,497 bp · p 0.15 · regional, not allelic
Overall
CADD	27.5	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 0.00167% Admixed American · 1/59,980 alleles

Overall 0.000137% 2/1,461,306 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00167%	59,980
European (non-Finnish)	8.48e-05%	1,179,830

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: ECEL1
Protein: p.Val558Ala
Coding: c.1673T>C
MANE Select: NM_004826
Type: single nucleotide variant
Location: chr2:232482863 (GRCh38)
Gene constraint: LOEUF 1.099 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 88.62
Residue 558: a disulfide bond; the peptidase m13 domain

Full ECEL1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

ECEL1 p.Arg756Trp Uncertain significance ★★ ⚠ same condition
ECEL1 p.Gly209Val Uncertain significance ★★ ⚠ same condition
ECEL1 p.Pro34Ser Uncertain significance ★★ ⚠ same condition
ECEL1 p.Ser44Arg Uncertain significance ★★ ⚠ same condition
ECEL1 p.Arg355Gln Likely benign ★★ same condition
ECEL1 p.Val558fs Pathogenic ★ same residue
ECEL1 c.1990-6C>T Conflicting classifications of pathogenicity ★ same condition
ECEL1 p.Ala109Val Uncertain significance ★ ⚠ same condition

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/ecel1-p-val558ala (accessed [today's date]).

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