Is CBLC p.Arg63Gln (c.188G>A) pathogenic?

CBLC p.Arg63Gln (c.188G>A) is classified Uncertain significance in CBLC (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-03). AlphaMissense: likely benign (0.0944); Very rare (popmax 0.00145%, nfe).

How common is CBLC p.Arg63Gln (c.188G>A) in the general population?

CBLC p.Arg63Gln (c.188G>A) is very rare (popmax 0.00145%, nfe) (gnomAD).

What do computational predictors say about CBLC p.Arg63Gln (c.188G>A)?

AlphaMissense predicts likely benign (score 0.0944) — an in-silico prediction, not a clinical call.

CBLC p.Arg63Gln

c.188G>A · VCV4648742

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0944 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00145%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0944	likely benign
REVEL	0.101	moderately benign-leaning
SaProt	LLR -7.93	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 -0.48	GERP -1.9
Regional constraint	o/e 1.18	unconstrained · MANE · 3,282 bp · p 0.0054 · regional, not allelic
Overall
CADD	10.15	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 0.00145% European (non-Finnish) · 17/1,176,414 alleles

Filtering AF 0.00088% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00072%

Overall 0.00113% 18/1,599,964 alleles · very rare exomes 15/1,447,756 · genomes 3/152,208 · joint denominator

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00145%	69,201
African / African-American	0.00135%	74,296

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: CBLC
Protein: p.Arg63Gln
Coding: c.188G>A
MANE Select: NM_012116
Type: single nucleotide variant
Location: chr19:44778119 (GRCh38)
Gene constraint: LOEUF 1.058 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 80.85 · 7 PDB
Residue 63: the cbl-ptb domain; the '4h' region

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

Similar variants

CBLC p.Ala122Ser Uncertain significance ★ ⚠ same type
CBLC p.Ala137Val Uncertain significance ★ ⚠ same type
CBLC p.Ala21Val Uncertain significance ★ ⚠ same type
CBLC p.Ala377Pro Uncertain significance ★ same type
CBLC p.Ala398Val Uncertain significance ★ ⚠ same type
CBLC p.Ala433Ser Uncertain significance ★ ⚠ same type
CBLC p.Ala450Gly Uncertain significance ★ ⚠ same type
CBLC p.Ala465Val 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/cblc-p-arg63gln (accessed [today's date]).

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