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CASK p.Leu295=

c.885G>A · rs2519079450 · VCV3036853

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000227%, nfe)
Conditions
1
CASK-related disorder

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
ConservationphyloP 4.8GERP 1.9, phastCons 1
Overall
CADD12.43PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000227% European (non-Finnish) · 2/882,985 alleles
Filtering AF 3.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.4e-05%
Overall 0.000184% 2/1,084,308 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
CASK
Protein
p.Leu295=
Coding
c.885G>A
MANE Select
NM_001367721
dbSNP
rs2519079450
Type
single nucleotide variant
Location
chrX:41636608 (GRCh38)
Structure
AlphaFold pLDDT 79.45 · 22 PDB
Residue 295
a UniProt-annotated variant site (found in a patient with epilepsy and pontocerebellar hypoplasia; likely pathogenic); an α-helix
Full CASK gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

CASK-related disorder

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/cask-p-leu295 (accessed [today's date]).

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