Is CBLC p.Ala377Pro (c.1129G>C) pathogenic?

CBLC p.Ala377Pro (c.1129G>C) is classified Uncertain significance in CBLC (ClinVar, Single submitter, 1 submitter; last evaluated 2025-01-18). AlphaMissense: ambiguous (0.3502); Very rare (popmax 0.000341%, nfe).

How common is CBLC p.Ala377Pro (c.1129G>C) in the general population?

CBLC p.Ala377Pro (c.1129G>C) is very rare (popmax 0.000341%, nfe) (gnomAD).

What do computational predictors say about CBLC p.Ala377Pro (c.1129G>C)?

AlphaMissense predicts ambiguous (score 0.3502) — an in-silico prediction, not a clinical call.

CBLC p.Ala377Pro

c.1129G>C · VCV3827891

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3502 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000341%, nfe)

Computational evidence

Protein change
AlphaMissense	0.3502	ambiguous
REVEL	0.411	indeterminate
SaProt	LLR -10.35	damaging
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -4.7	GERP -5.5
Regional constraint	o/e 1.00	unconstrained · MANE · 19 kb · p 0.99 · regional, not allelic
Overall
CADD	14.89	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 0.000341% European (non-Finnish) · 4/1,174,594 alleles

Filtering AF 8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%

Overall 0.000276% 4/1,447,216 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: CBLC
Protein: p.Ala377Pro
Coding: c.1129G>C
MANE Select: NM_012116
Type: single nucleotide variant
Location: chr19:44792506 (GRCh38)
Gene constraint: LOEUF 1.058 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 80.85 · 7 PDB
Residue 377: the 'interaction with ret' 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.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
CBLC p.Ala472Thr 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-ala377pro (accessed [today's date]).

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