Is ELN p.Ala621= (c.1863C>T) pathogenic?

ELN p.Ala621= (c.1863C>T) is classified Likely benign in ELN (ClinVar, Multiple submitters, 2 submitters; last evaluated 2023-04-01). Ultra-rare (popmax 0.0109%, afr); Associated with supravalvular aortic stenosis.

What condition is associated with ELN p.Ala621= (c.1863C>T)?

ELN p.Ala621= (c.1863C>T) is associated with supravalvular aortic stenosis (ClinVar).

How common is ELN p.Ala621= (c.1863C>T) in the general population?

ELN p.Ala621= (c.1863C>T) is ultra-rare (popmax 0.0109%, afr) (gnomAD).

ELN p.Ala621=

c.1863C>T · rs782389686 · VCV1958463

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0109%, afr)

Conditions

supravalvular aortic stenosis

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · C>A here scores Δ0.62 · evaluated, not missing
Constraint at this position
Conservation	phyloP -8.2	GERP -4.5
Overall
CADD	2.313	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0109% African / African-American · 8/73,152 alleles

Filtering AF 0.00539% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00389%

Overall 0.00116% 18/1,550,316 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0109%	9,144
East Asian	0.00485%	20,637
South Asian	0.00356%	28,097
Ashkenazi Jewishnot grpmax-eligible	0.00349%	28,670
European (non-Finnish)	0.000348%	287,043

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: ELN
Protein: p.Ala621=
Coding: c.1863C>T
MANE Select: NM_000501
dbSNP: rs782389686
Type: single nucleotide variant
Location: chr7:74063314 (GRCh38)
Gene constraint: LOEUF 0.696 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 36.20
Residue 621: the 'disordered' region

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

Disease context

supravalvular aortic stenosis — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

ELN p.Ala621Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
ELN p.Ala621Gly Uncertain significance ★ ⚠ same residue
ELN c.377-2A>G Pathogenic/Likely pathogenic ★★ same condition
ELN c.643+1G>C Likely pathogenic ★★ same condition
ELN c.686-2A>G Likely pathogenic ★★ same condition
ELN c.800-1G>A Pathogenic/Likely pathogenic ★★ same condition
ELN c.800-2A>G Pathogenic ★★ same condition
ELN c.800-3C>G Pathogenic ★★ 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/eln-p-ala621 (accessed [today's date]).

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