Is ANK2 p.Asn247= (c.741C>T) pathogenic?

ANK2 p.Asn247= (c.741C>T) is classified Conflicting classifications of pathogenicity in ANK2 (ClinVar, Conflicting submitters, 4 submitters; last evaluated 2025-12-15). Ultra-rare (popmax 0.0626%, afr); Associated with Cardiovascular phenotype.

What condition is associated with ANK2 p.Asn247= (c.741C>T)?

ANK2 p.Asn247= (c.741C>T) is associated with Cardiovascular phenotype, long QT syndrome, cardiac arrhythmia, ankyrin-B-related (ClinVar).

How common is ANK2 p.Asn247= (c.741C>T) in the general population?

ANK2 p.Asn247= (c.741C>T) is ultra-rare (popmax 0.0626%, afr) (gnomAD).

ANK2 p.Asn247=

c.741C>T · rs190102899 · VCV377470

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 4 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0626%, 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 -6.9	GERP -4.9
Overall
CADD	7.715	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0626% African / African-American · 47/75,026 alleles

Filtering AF 0.0483% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0433%

Overall 0.00496% 80/1,613,976 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0626%	1,596
Admixed American	0.015%	6,668
Remaining individualsnot grpmax-eligible	0.0144%	6,944
South Asian	0.0022%	45,540
Finnishnot grpmax-eligible	0.00156%	64,020
European (non-Finnish)	0.00102%	98,327

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.Asn247=
Coding: c.741C>T
MANE Select: NM_001148
dbSNP: rs190102899
Type: single nucleotide variant
Location: chr4:113240532 (GRCh38)
Gene constraint: LOEUF 0.271 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 247: an α-helix

Full ANK2 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: long QT syndrome cardiac arrhythmia, ankyrin-B-related

Similar variants

ANK2 p.Asn247Lys Uncertain significance ★ same residue
ANK2 p.Arg1007Ter Pathogenic/Likely pathogenic ★★ same condition
ANK2 p.Arg1088Ter Pathogenic ★★ same condition
ANK2 p.Arg3113Ter Pathogenic ★★ same condition
ANK2 p.Arg895Ter Pathogenic/Likely pathogenic ★★ same condition
ANK2 p.Arg977Ter Pathogenic ★★ same condition
ANK2 c.11032+11G>T Uncertain significance ★★ same condition
ANK2 c.11611-3T>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-asn247 (accessed [today's date]).

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