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RAF1 p.Ser259Pro

c.775T>C · rs3730271 · VCV228288

Pathogenic/Likely pathogenic Multiple submitters
Classification
Pathogenic/Likely pathogenic
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 5 submitters
AlphaMissense
likely pathogenic
0.9948 · ACMG-weighted
gnomAD v4.1
Absent
absent from gnomAD v4.1
Missense predictors
2/3 damaging
AlphaMissense, REVEL, SaProt
Conditions
3
RASopathy

Computational evidence

Protein change
AlphaMissense0.9948likely pathogenic ✓ concordant with ClinVar · top 1% in RAF1
REVEL0.703pathogenic-leaning
SaProtLLR -9.98tolerated
⇒ AlphaMissense and REVEL call this damaging; SaProt does not.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 11GERP 2.8, phastCons 1
Overall
CADD25.9PHRED · 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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene
RAF1
Protein
p.Ser259Pro
Coding
c.775T>C
MANE Select
NM_002935 · reported on NM_002880
dbSNP
rs3730271
Type
single nucleotide variant
Location
chr3:12604195 (GRCh38)
Structure
AlphaFold pLDDT 90.69 · 11 PDB
Full RAF1 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/raf1-p-ser259pro (accessed [today's date]).

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