Is CASP10 p.Ile27= (c.81T>C) pathogenic?

CASP10 p.Ile27= (c.81T>C) is classified Conflicting classifications of pathogenicity in CASP10 (ClinVar, Conflicting submitters, 2 submitters; last evaluated 2023-08-14). Very rare (popmax 0.000508%, nfe); Associated with autoimmune lymphoproliferative syndrome type 2A.

What condition is associated with CASP10 p.Ile27= (c.81T>C)?

CASP10 p.Ile27= (c.81T>C) is associated with autoimmune lymphoproliferative syndrome type 2A (ClinVar).

How common is CASP10 p.Ile27= (c.81T>C) in the general population?

CASP10 p.Ile27= (c.81T>C) is very rare (popmax 0.000508%, nfe) (gnomAD).

How is Autoimmune lymphoproliferative syndrome inherited?

Typically Autosomal dominant, Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

CASP10 p.Ile27=

c.81T>C · rs751728796 · VCV714082

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.000508%, nfe)

Conditions

autoimmune lymphoproliferative syndrome type 2A

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 -3.7	GERP -3.4
Overall
CADD	0.946	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000508% European (non-Finnish) · 6/1,179,998 alleles

Filtering AF 0.000183% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00012%

Overall 0.000372% 6/1,614,012 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: CASP10
Protein: p.Ile27=
Coding: c.81T>C
MANE Select: NM_032977
dbSNP: rs751728796
Type: single nucleotide variant
Location: chr2:201185858 (GRCh38)
Gene constraint: LOEUF 1.046 · pLI <0.01 · ClinGen HI 1/3 (gnomAD)
Structure: AlphaFold pLDDT 69.54
Residue 27: the ded 1 domain

Full CASP10 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

autoimmune lymphoproliferative syndrome type 2A — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Autoimmune lymphoproliferative syndrome (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive
Onset: All ages

Similar variants

CASP10 c.1415+2T>C Uncertain significance ★★ same condition
CASP10 c.1416-3C>A Uncertain significance ★★ same condition
CASP10 c.347+2T>G Uncertain significance ★★ same condition
CASP10 c.684+1G>A Uncertain significance ★★ same condition
CASP10 c.922+5G>A Uncertain significance ★★ same condition
CASP10 p.Ala237Glu Uncertain significance ★★ ⚠ same condition
CASP10 p.Ala248Val Uncertain significance ★★ ⚠ same condition
CASP10 p.Ala259Thr 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/casp10-p-ile27 (accessed [today's date]).

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