Is ENG p.Ala339= (c.1017A>G) pathogenic?

ENG p.Ala339= (c.1017A>G) is classified Likely benign in ENG (ClinVar, Multiple submitters, 2 submitters; last evaluated 2026-04-26). Absent from gnomAD v4.1; Associated with Cardiovascular phenotype.

What condition is associated with ENG p.Ala339= (c.1017A>G)?

ENG p.Ala339= (c.1017A>G) is associated with Cardiovascular phenotype, hereditary hemorrhagic telangiectasia (ClinVar).

How common is ENG p.Ala339= (c.1017A>G) in the general population?

ENG p.Ala339= (c.1017A>G) is absent from gnomAD v4.1 (gnomAD).

ENG p.Ala339=

c.1017A>G · rs2131886064 · VCV1529022

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

Cardiovascular phenotype

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -6.6	GERP -3.1
Overall
CADD	0.372	PHRED · no single calibrated threshold — expert panels disagree

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: ENG
Protein: p.Ala339=
Coding: c.1017A>G
MANE Select: NM_001114753
dbSNP: rs2131886064
Type: single nucleotide variant
Location: chr9:127824421 (GRCh38)
Gene constraint: LOEUF 0.374 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 80.84 · 3 PDB

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

Disease context

Cardiovascular phenotype — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: hereditary hemorrhagic telangiectasia

Similar variants

ENG p.Ala339Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
ENG p.Arg529His Pathogenic ★★★ ⚠ same condition
ENG p.Asn423Ser Likely pathogenic ★★★ ⚠ same condition
ENG p.Cys382Tyr Pathogenic ★★★ same condition
ENG p.Cys549Gly Likely pathogenic ★★★ same condition
ENG p.Gly331Ser Pathogenic ★★★ ⚠ same condition
ENG p.Gly603Arg Likely pathogenic ★★★ same condition
ENG p.Leu221Pro Likely 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/eng-p-ala339 (accessed [today's date]).

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