Is JPH2 p.Ala214= (c.642G>A) pathogenic?

JPH2 p.Ala214= (c.642G>A) is classified Benign/Likely benign in JPH2 (ClinVar, Multiple submitters, 10 submitters; last evaluated 2026-02-02). Rare (popmax 0.45%, afr); Associated with Cardiovascular phenotype.

What condition is associated with JPH2 p.Ala214= (c.642G>A)?

JPH2 p.Ala214= (c.642G>A) is associated with Cardiovascular phenotype, hypertrophic cardiomyopathy (ClinVar).

How common is JPH2 p.Ala214= (c.642G>A) in the general population?

JPH2 p.Ala214= (c.642G>A) is rare (popmax 0.45%, afr) (gnomAD).

JPH2 p.Ala214=

c.642G>A · rs587780956 · VCV137605

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 10 submitters

gnomAD v4.1

Rare

rare (popmax 0.45%, afr)

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 -0.18	GERP -2.9
Overall
CADD	4.34	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.45% African / African-American · 298/66,176 alleles

Filtering AF 0.408% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.392%

Overall 0.0232% 334/1,439,436 alleles · rare exomes 142/1,287,674 · genomes 192/151,762 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.45%	222
Admixed American	0.0436%	2,295
Remaining individualsnot grpmax-eligible	0.0291%	3,439
Middle Eastern	0.0243%	4,108
South Asian	0.00139%	72,038
European (non-Finnish)	0.000271%	368,502

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: JPH2
Protein: p.Ala214=
Coding: c.642G>A
MANE Select: NM_020433
dbSNP: rs587780956
Type: single nucleotide variant
Location: chr20:44160145 (GRCh38)
Gene constraint: LOEUF 1.051 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 65.09 · 2 PDB

Full JPH2 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: hypertrophic cardiomyopathy

Similar variants

JPH2 p.Ala214Glu Uncertain significance ★★ ⚠ same residue
JPH2 p.Ala214Ser Uncertain significance ★ ⚠ same residue
JPH2 p.Thr161Lys Pathogenic/Likely pathogenic ★★ same condition
JPH2 c.-4T>A Uncertain significance ★★ same condition
JPH2 p.Ala181Thr Uncertain significance ★★ ⚠ same condition
JPH2 p.Ala194Ser Uncertain significance ★★ ⚠ same condition
JPH2 p.Ala23Thr Uncertain significance ★★ ⚠ same condition
JPH2 p.Ala23Val 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/jph2-p-ala214 (accessed [today's date]).

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