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CAT p.Asp498=

c.1494C>T · VCV3358173

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0283%, amr)
Conditions
1
CAT-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 0.41GERP 0.68, phastCons 0.99
Overall
CADD5.831PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0283% Admixed American · 17/60,004 alleles
Filtering AF 0.018% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0147%
Overall 0.00112% 18/1,614,034 alleles · ultra-rare
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.0283% 3,530
European (non-Finnish) 8.47e-05% 1,179,993

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
CAT
Protein
p.Asp498=
Coding
c.1494C>T
MANE Select
NM_001752
Type
single nucleotide variant
Location
chr11:34471017 (GRCh38)
Gene constraint
LOEUF 0.9 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 95.97 · 17 PDB
Residue 498
an α-helix
Full CAT gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

CAT-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/cat-p-asp498 (accessed [today's date]).

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