Is CAD p.Asp302Ala (c.905A>C) pathogenic?

CAD p.Asp302Ala (c.905A>C) is classified Uncertain significance in CAD (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-03-19). AlphaMissense: likely benign (0.0635); Very rare (popmax 0.0028%, nfe); Associated with Inborn genetic diseases.

What condition is associated with CAD p.Asp302Ala (c.905A>C)?

CAD p.Asp302Ala (c.905A>C) is associated with Inborn genetic diseases (ClinVar).

How common is CAD p.Asp302Ala (c.905A>C) in the general population?

CAD p.Asp302Ala (c.905A>C) is very rare (popmax 0.0028%, nfe) (gnomAD).

What do computational predictors say about CAD p.Asp302Ala (c.905A>C)?

AlphaMissense predicts likely benign (score 0.0635) — an in-silico prediction, not a clinical call.

CAD p.Asp302Ala

c.905A>C · rs201395949 · VCV1347800

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.0635 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.0028%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.0635	likely benign
REVEL	0.236	benign-leaning
SaProt	LLR -6.19	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.4	GERP 2.2, phastCons 1
Regional constraint	o/e 0.90	unconstrained · MANE · 825 bp · p 0.23 · regional, not allelic
Overall
CADD	21.1	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0028% European (non-Finnish) · 33/1,179,986 alleles

Filtering AF 0.002% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00175%

Overall 0.00217% 35/1,613,890 alleles · very rare

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.0028%	35,757
African / African-American	0.00267%	37,435

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: CAD
Protein: p.Asp302Ala
Coding: c.905A>C
MANE Select: NM_004341
dbSNP: rs201395949
Type: single nucleotide variant
Location: chr2:27223658 (GRCh38)
Gene constraint: LOEUF 0.409 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 87.25 · 57 PDB
Residue 302: the glutamine amidotransferase type-1 domain; the 'gatase (glutamine amidotransferase)' region

Full CAD 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

Similar variants

CAD p.Asp302= Likely benign ★ same residue
CAD c.6480+6T>C Uncertain significance ★★ same condition
CAD p.Ala1527Thr Uncertain significance ★★ ⚠ same condition
CAD p.Ala1769Thr Uncertain significance ★★ ⚠ same condition
CAD p.Ala1824Ser Uncertain significance ★★ ⚠ same condition
CAD p.Ala495Pro Uncertain significance ★★ ⚠ same condition
CAD p.Ala608Thr Uncertain significance ★★ ⚠ same condition
CAD p.Arg1075His 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/cad-p-asp302ala (accessed [today's date]).

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