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NOTCH1 p.Glu450=

c.1350G>A · rs545412803 · VCV1770594

Benign/Likely benign Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00891%, eas)
Conditions
2
Adams-Oliver syndrome 5

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 1.7GERP -0.35, phastCons 1
Overall
CADD7.197PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00891% East Asian · 4/44,882 alleles
Filtering AF 0.00298% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0018%
Overall 0.000248% 4/1,612,722 alleles · very rare exomes 2/1,460,398 · genomes 2/152,324 · 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
NOTCH1
Protein
p.Glu450=
Coding
c.1350G>A
MANE Select
NM_017617
dbSNP
rs545412803
Type
single nucleotide variant
Location
chr9:136517843 (GRCh38)
Gene constraint
LOEUF 0.217 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 59.74 · 29 PDB
Residue 450
the egf-like 11; calcium-binding domain; the 'interaction with dll4' region
Full NOTCH1 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/notch1-p-glu450 (accessed [today's date]).

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