Is CD2 p.Pro298Leu (c.893C>T) pathogenic?

CD2 p.Pro298Leu (c.893C>T) is classified Likely benign in CD2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-07-12). AlphaMissense: likely benign (0.0559); Ultra-rare (popmax 0.0107%, afr).

How common is CD2 p.Pro298Leu (c.893C>T) in the general population?

CD2 p.Pro298Leu (c.893C>T) is ultra-rare (popmax 0.0107%, afr) (gnomAD).

What do computational predictors say about CD2 p.Pro298Leu (c.893C>T)?

AlphaMissense predicts likely benign (score 0.0559) — an in-silico prediction, not a clinical call.

CD2 p.Pro298Leu

c.893C>T · VCV4222665

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0559 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0107%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0559	likely benign
REVEL	0.017	moderately benign-leaning
SaProt	LLR -8.39	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 -0.28	GERP -4.5
Regional constraint	o/e 1.00	unconstrained · MANE · 14 kb · p 0.97 · regional, not allelic
Overall
CADD	11.88	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 0.0107% African / African-American · 8/74,864 alleles

Filtering AF 0.00528% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00381%

Overall 0.00229% 37/1,613,946 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0107%	9,358
Admixed American	0.00333%	29,997
South Asian	0.0022%	45,537
European (non-Finnish)	0.00203%	49,168
Remaining individualsnot grpmax-eligible	0.0016%	62,488

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: CD2
Protein: p.Pro298Leu
Coding: c.893C>T
MANE Select: NM_001767
Type: single nucleotide variant
Location: chr1:116768620 (GRCh38)
Gene constraint: LOEUF 1.143 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 78.25 · 7 PDB
Residue 298: an α-helix; the 'disordered' region

Full CD2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CD2 p.Ala270Thr Uncertain significance ★ ⚠ same type
CD2 p.Ala292Ser Uncertain significance ★ ⚠ same type
CD2 p.Ala342Thr Uncertain significance ★ ⚠ same type
CD2 p.Arg129Lys Uncertain significance ★ ⚠ same type
CD2 p.Arg129Trp Uncertain significance ★ ⚠ same type
CD2 p.Arg243Gln Uncertain significance ★ ⚠ same type
CD2 p.Arg243Leu Uncertain significance ★ ⚠ same type
CD2 p.Arg263Gln 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/cd2-p-pro298leu (accessed [today's date]).

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