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ANKRD26 c.357+18C>A

VCV4776166

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.0066%, sas)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
Splice regiondonor +18near-intronic (+18 nt from the splice site)
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -20GERP -3.6
Non-coding constraintZ 0.791 kb window · o/e 0.92 · regional · uncalibrated
Overall
CADD2.126PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0066% South Asian · 6/90,946 alleles
Filtering AF 0.00287% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00195%
Overall 0.000412% 6/1,455,952 alleles · very rare

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
ANKRD26
Coding
c.357+18C>A
MANE Select
NM_014915
Type
single nucleotide variant
Location
chr10:27093667 (GRCh38)
Gene constraint
LOEUF 0.728 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure
AlphaFold pLDDT 62.91
Full ANKRD26 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/ankrd26-c-357-plus-18c-a (accessed [today's date]).

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