Is ANK2 p.Met677Val (c.2029A>G) pathogenic?

ANK2 p.Met677Val (c.2029A>G) is classified Uncertain significance in ANK2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-01-18). AlphaMissense: likely benign (0.1725); Very rare (popmax 0.00667%, amr); Associated with Cardiovascular phenotype.

What condition is associated with ANK2 p.Met677Val (c.2029A>G)?

ANK2 p.Met677Val (c.2029A>G) is associated with Cardiovascular phenotype (ClinVar).

How common is ANK2 p.Met677Val (c.2029A>G) in the general population?

ANK2 p.Met677Val (c.2029A>G) is very rare (popmax 0.00667%, amr) (gnomAD).

What do computational predictors say about ANK2 p.Met677Val (c.2029A>G)?

AlphaMissense predicts likely benign (score 0.1725) — an in-silico prediction, not a clinical call.

ANK2 p.Met677Val

c.2029A>G · VCV3864510

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1725 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00667%, amr)

Missense predictors

0/2 damaging

AlphaMissense, REVEL · SaProt no call

Conditions

Cardiovascular phenotype

Computational evidence

Protein change
AlphaMissense	0.1725	likely benign
REVEL	0.261	benign-leaning
SaProt	—	not scored · why
⇒ AlphaMissense and REVEL both call this tolerated; SaProt makes no call.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 7.9	GERP 2.5, phastCons 1
Regional constraint	o/e 0.77	unconstrained · MANE · 98 kb · p 4.4e-21 · regional, not allelic
Overall
CADD	23.2	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL is an independent agreement signal.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00667% Admixed American · 4/59,996 alleles

Filtering AF 0.00226% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00135%

Overall 0.000558% 9/1,614,072 alleles · very rare exomes 9/1,461,756 · genomes 0/152,316 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00667%	14,999
Remaining individualsnot grpmax-eligible	0.0016%	62,500
European (non-Finnish)	0.000339%	294,989

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.Met677Val
Coding: c.2029A>G
MANE Select: NM_001148
Type: single nucleotide variant
Location: chr4:113282822 (GRCh38)
Gene constraint: LOEUF 0.271 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 677: 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

Similar variants

ANK2 p.Met677Thr Likely pathogenic same residue
ANK2 p.Arg3113Ter Pathogenic ★★ same condition
ANK2 p.Arg895Ter Pathogenic/Likely pathogenic ★★ same condition
ANK2 p.Arg977Ter 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 p.Ala1152Val 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-met677val (accessed [today's date]).

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