Is ANKRD11 p.Ser296= (c.888G>A) pathogenic?

ANKRD11 p.Ser296= (c.888G>A) is classified Likely benign in ANKRD11 (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-10-29). Ultra-rare (popmax 0.0637%, sas); Associated with Inborn genetic diseases.

What condition is associated with ANKRD11 p.Ser296= (c.888G>A)?

ANKRD11 p.Ser296= (c.888G>A) is associated with Inborn genetic diseases, KBG syndrome (ClinVar).

How common is ANKRD11 p.Ser296= (c.888G>A) in the general population?

ANKRD11 p.Ser296= (c.888G>A) is ultra-rare (popmax 0.0637%, sas) (gnomAD).

ANKRD11 p.Ser296=

c.888G>A · rs763790556 · VCV588406

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0637%, sas)

Conditions

Inborn genetic diseases

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 -3.6	GERP -3.7
Overall
CADD	0.755	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0637% South Asian · 58/91,082 alleles

Filtering AF 0.0505% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0458%

Overall 0.00564% 91/1,614,196 alleles · ultra-rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0637%	1,570
Middle Eastern	0.033%	3,031
Remaining individualsnot grpmax-eligible	0.0032%	31,256
European (non-Finnish)	0.00237%	42,144
African / African-American	0.00133%	75,072

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: ANKRD11
Protein: p.Ser296=
Coding: c.888G>A
MANE Select: NM_013275
dbSNP: rs763790556
Type: single nucleotide variant
Location: chr16:89286043 (GRCh38)
Gene constraint: LOEUF 0.132 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 39.44
Residue 296: the 'disordered' region

Full ANKRD11 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: KBG syndrome

Similar variants

ANKRD11 p.Ser296Pro Uncertain significance ★ ⚠ same residue
ANKRD11 c.744+1G>T Pathogenic ★★ same condition
ANKRD11 c.745-2A>G Likely pathogenic ★★ same condition
ANKRD11 c.7470+1G>C Pathogenic ★★ same condition
ANKRD11 c.7569+1G>A Pathogenic ★★ same condition
ANKRD11 c.7569+1G>C Likely pathogenic ★★ same condition
ANKRD11 c.7570-1G>A Pathogenic ★★ same condition
ANKRD11 c.892+1G>A Likely 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/ankrd11-p-ser296 (accessed [today's date]).

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