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PLK4 p.Arg419=

c.1257G>A · rs768073163 · VCV1542149

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0176%, sas)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Splicing
SpliceAIΔ0.42donor loss, 1 bp away · masked 0 · deltas
Constraint at this position
ConservationphyloP 2.2GERP -0.93, phastCons 0.015
Overall
CADD10.39PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0176% South Asian · 16/91,030 alleles
Filtering AF 0.011% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00899%
Overall 0.000992% 16/1,612,134 alleles · ultra-rare exomes 15/1,460,042 · genomes 1/152,092 · joint denominator

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
PLK4
Protein
p.Arg419=
Coding
c.1257G>A
MANE Select
NM_014264
dbSNP
rs768073163
Type
single nucleotide variant
Location
chr4:127886627 (GRCh38)
Gene constraint
LOEUF 0.619 · pLI 0.18 (gnomAD)
Structure
AlphaFold pLDDT 66.31 · 19 PDB
Residue 419
the 'disordered' region
Full PLK4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/plk4-p-arg419 (accessed [today's date]).

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