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SOS1 p.Val697=

c.2091A>T · rs1669533747 · VCV1648744

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00134%, afr)
Conditions
1
RASopathy

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
ConservationphyloP -0.036GERP -0.29, phastCons 0.89
Overall
CADD4.637PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00134% African / African-American · 1/74,820 alleles
Overall 6.21e-05% 1/1,611,132 alleles · very rare exomes 0/1,459,052 · genomes 1/152,080 · 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
SOS1
Protein
p.Val697=
Coding
c.2091A>T
MANE Select
NM_005633
dbSNP
rs1669533747
Type
single nucleotide variant
Location
chr2:39013536 (GRCh38)
Gene constraint
LOEUF 0.288 · pLI 1.00 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 77.12 · 92 PDB
Residue 697
an α-helix; the n-terminal ras-gef domain
Full SOS1 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/sos1-p-val697 (accessed [today's date]).

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