Is ANK2 p.Leu947= (c.2841A>G) pathogenic?

ANK2 p.Leu947= (c.2841A>G) is classified Likely benign in ANK2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-08-28). Very rare (popmax 0.00669%, eas); Associated with long QT syndrome.

What condition is associated with ANK2 p.Leu947= (c.2841A>G)?

ANK2 p.Leu947= (c.2841A>G) is associated with long QT syndrome (ClinVar).

How common is ANK2 p.Leu947= (c.2841A>G) in the general population?

ANK2 p.Leu947= (c.2841A>G) is very rare (popmax 0.00669%, eas) (gnomAD).

ANK2 p.Leu947=

c.2841A>G · rs1270964149 · VCV1628695

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00669%, eas)

Conditions

long QT syndrome

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 -0.51	GERP -4.3, phastCons 0.003
Overall
CADD	3.18	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00669% East Asian · 3/44,868 alleles

Filtering AF 0.00177% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000891%

Overall 0.000342% 5/1,461,526 alleles · very rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00669%	14,956
European (non-Finnish)	0.00017%	589,925

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: ANK2
Protein: p.Leu947=
Coding: c.2841A>G
MANE Select: NM_001148
dbSNP: rs1270964149
Type: single nucleotide variant
Location: chr4:113318561 (GRCh38)
Gene constraint: LOEUF 0.271 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)

Full ANK2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

long QT syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

ANK2 p.Leu947Pro Uncertain significance ★ ⚠ same residue
ANK2 p.Arg3113Ter Pathogenic ★★ same condition
ANK2 c.11611-3T>A Uncertain significance ★★ same condition
ANK2 c.1783-3C>T Uncertain significance ★★ same condition
ANK2 c.2079+5T>G Uncertain significance ★★ same condition
ANK2 c.2278-3C>T Uncertain significance ★★ same condition
ANK2 c.3125+6G>A Uncertain significance ★★ same condition
ANK2 c.693+6G>A 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/ank2-p-leu947 (accessed [today's date]).

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