Is CAD p.Phe312= (c.936C>T) pathogenic?

CAD p.Phe312= (c.936C>T) is classified Likely benign in CAD (ClinVar, Single submitter, 1 submitter; last evaluated 2024-10-04). Very rare (popmax 0.000169%, nfe).

How common is CAD p.Phe312= (c.936C>T) in the general population?

CAD p.Phe312= (c.936C>T) is very rare (popmax 0.000169%, nfe) (gnomAD).

CAD p.Phe312=

c.936C>T · VCV3722203

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.000169%, nfe)

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 0.13	GERP 0.056, phastCons 0.94
Overall
CADD	9.409	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000169% European (non-Finnish) · 2/1,180,024 alleles

Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%

Overall 0.000137% 2/1,461,874 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: CAD
Protein: p.Phe312=
Coding: c.936C>T
MANE Select: NM_004341
Type: single nucleotide variant
Location: chr2:27223689 (GRCh38)
Gene constraint: LOEUF 0.409 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 87.25 · 57 PDB
Residue 312: 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

Similar variants

CAD p.Phe312fs Pathogenic ★ same residue
CAD p.Arg1789Ter Pathogenic ★★ same type
CAD p.Arg1810Gln Pathogenic/Likely pathogenic ★★ ⚠ same type
CAD p.Arg191Ter Pathogenic ★★ same type
CAD p.Gln1604Ter Likely pathogenic ★★ same type
CAD p.Met33Arg Pathogenic ★★ same type
CAD c.1254+6G>A Uncertain significance ★★ same type
CAD c.2032-3C>T Uncertain significance ★★ same type

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-phe312 (accessed [today's date]).

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