Is CD1E p.Ile321Met (c.963A>G) pathogenic?

CD1E p.Ile321Met (c.963A>G) is classified Likely benign in CD1E (ClinVar, Single submitter, 1 submitter; last evaluated 2025-11-13). AlphaMissense: likely benign (0.0681); Very rare (popmax 0.00934%, afr).

How common is CD1E p.Ile321Met (c.963A>G) in the general population?

CD1E p.Ile321Met (c.963A>G) is very rare (popmax 0.00934%, afr) (gnomAD).

What do computational predictors say about CD1E p.Ile321Met (c.963A>G)?

AlphaMissense predicts likely benign (score 0.0681) — an in-silico prediction, not a clinical call.

CD1E p.Ile321Met

c.963A>G · VCV4650488

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0681 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00934%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0681	likely benign
REVEL	0.055	moderately benign-leaning
SaProt	LLR -8.18	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 -7.1	GERP -4
Regional constraint	o/e 1.04	unconstrained · MANE · 2,904 bp · p 0.34 · regional, not allelic
Overall
CADD	2.877	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00934% African / African-American · 7/74,932 alleles

Filtering AF 0.00437% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00309%

Overall 0.000547% 8/1,461,658 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00934%	10,705
Remaining individualsnot grpmax-eligible	0.0016%	62,502

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: CD1E
Protein: p.Ile321Met
Coding: c.963A>G
MANE Select: NM_030893
Type: single nucleotide variant
Location: chr1:158356556 (GRCh38)
Gene constraint: LOEUF 1.517 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 81.66 · 1 PDB

Full CD1E gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CD1E p.Asp264= Benign ★★ same type
CD1E p.His102Arg Benign ★★ same type
CD1E p.Ala110Val Uncertain significance ★ ⚠ same type
CD1E p.Ala127Thr Uncertain significance ★ ⚠ same type
CD1E p.Ala195Val Uncertain significance ★ ⚠ same type
CD1E p.Arg164Trp Uncertain significance ★ ⚠ same type
CD1E p.Arg192Gln Uncertain significance ★ ⚠ same type
CD1E p.Arg207Trp 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/cd1e-p-ile321met (accessed [today's date]).

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