Is ANK1 p.Ser429Leu (c.1286C>T) pathogenic?

ANK1 p.Ser429Leu (c.1286C>T) is classified Uncertain significance in ANK1 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-02-20). AlphaMissense: likely benign (0.1352); Very rare (popmax 0.00784%, amr); Associated with Inborn genetic diseases.

What condition is associated with ANK1 p.Ser429Leu (c.1286C>T)?

ANK1 p.Ser429Leu (c.1286C>T) is associated with Inborn genetic diseases, hereditary spherocytosis type 1 (ClinVar).

How common is ANK1 p.Ser429Leu (c.1286C>T) in the general population?

ANK1 p.Ser429Leu (c.1286C>T) is very rare (popmax 0.00784%, amr) (gnomAD).

What do computational predictors say about ANK1 p.Ser429Leu (c.1286C>T)?

AlphaMissense predicts likely benign (score 0.1352) — an in-silico prediction, not a clinical call.

ANK1 p.Ser429Leu

c.1286C>T · rs770353869 · VCV363033

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.1352 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00784%, amr)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1352	likely benign
REVEL	0.558	indeterminate
SaProt	LLR -7.41	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 2.1, phastCons 1
Regional constraint	o/e 0.83	unconstrained · MANE · 38 kb · p 1e-12 · regional, not allelic
Overall
CADD	26.6	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 and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00784% Admixed American · 4/50,990 alleles

Filtering AF 0.00263% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00153%

Overall 0.00213% 33/1,551,426 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00784%	12,747
South Asian	0.00357%	28,018
Remaining individualsnot grpmax-eligible	0.00333%	30,040
European (non-Finnish)	0.00209%	47,791

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: ANK1
Protein: p.Ser429Leu
Coding: c.1286C>T
MANE Select: NM_000037
dbSNP: rs770353869
Type: single nucleotide variant
Location: chr8:41717623 (GRCh38)
Gene constraint: LOEUF 0.299 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 69.64 · 21 PDB
Residue 429: the '89 kda domain' region; a modified residue (phosphoserine)

Full ANK1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: hereditary spherocytosis type 1

Similar variants

ANK1 c.1305+1G>A Pathogenic ★★ same condition
ANK1 c.1405-9G>A Pathogenic/Likely pathogenic ★★ same condition
ANK1 c.1702-2A>G Pathogenic/Likely pathogenic ★★ same condition
ANK1 c.1801-17G>A Pathogenic/Likely pathogenic ★★ same condition
ANK1 c.2296-1G>A Likely pathogenic ★★ same condition
ANK1 c.2296-2A>G Pathogenic/Likely pathogenic ★★ same condition
ANK1 c.2389-2A>G Likely pathogenic ★★ same condition
ANK1 c.2462-2A>G 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/ank1-p-ser429leu (accessed [today's date]).

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