Is ALK p.Pro1486= (c.4458T>C) pathogenic?

ALK p.Pro1486= (c.4458T>C) is classified Likely benign in ALK (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-07-30). Ultra-rare (popmax 0.0223%, eas); Associated with neuroblastoma, susceptibility to, 3.

What condition is associated with ALK p.Pro1486= (c.4458T>C)?

ALK p.Pro1486= (c.4458T>C) is associated with neuroblastoma, susceptibility to, 3, hereditary neoplastic syndrome (ClinVar).

How common is ALK p.Pro1486= (c.4458T>C) in the general population?

ALK p.Pro1486= (c.4458T>C) is ultra-rare (popmax 0.0223%, eas) (gnomAD).

ALK p.Pro1486=

c.4458T>C · rs1668941335 · VCV1157228

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0223%, eas)

Conditions

neuroblastoma, susceptibility to, 3

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 -9.7	GERP -4.9
Overall
CADD	0.302	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0223% East Asian · 10/44,904 alleles

Filtering AF 0.012% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00916%

Overall 0.000681% 11/1,614,100 alleles · ultra-rare exomes 10/1,461,886 · genomes 1/152,214 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.0223%	4,490
South Asian	0.0011%	91,084

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: ALK
Protein: p.Pro1486=
Coding: c.4458T>C
MANE Select: NM_004304
dbSNP: rs1668941335
Type: single nucleotide variant
Location: chr2:29193629 (GRCh38)
Gene constraint: LOEUF 0.562 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 68.26 · 79 PDB

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

Disease context

neuroblastoma, susceptibility to, 3 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: hereditary neoplastic syndrome

Similar variants

ALK p.Pro1486Leu Uncertain significance ★ ⚠ same residue
ALK p.Pro1486Ser Uncertain significance ★ ⚠ same residue
ALK p.Arg1275Gln Pathogenic ★★ same condition
ALK c.1154+5G>A Uncertain significance ★★ same condition
ALK c.1155-3C>T Uncertain significance ★★ same condition
ALK c.1282+3A>G Uncertain significance ★★ same condition
ALK c.1414+1G>A Uncertain significance ★★ same condition
ALK c.1414+3G>A Uncertain significance ★★ same condition

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/alk-p-pro1486 (accessed [today's date]).

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