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SETD1A p.Ala233=

c.699G>A · rs145879879 · VCV2646421

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.052%, afr)

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 -0.15GERP -4.9, phastCons 0.015
Overall
CADD3.387PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.052% African / African-American · 39/75,008 alleles
Filtering AF 0.039% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0345%
Overall 0.00403% 65/1,614,020 alleles · ultra-rare exomes 44/1,461,860 · genomes 21/152,160 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.052% 1,923
Remaining individualsnot grpmax-eligible 0.0048% 20,834
European (non-Finnish) 0.00195% 51,303

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
SETD1A
Protein
p.Ala233=
Coding
c.699G>A
MANE Select
NM_014712
dbSNP
rs145879879
Type
single nucleotide variant
Location
chr16:30964153 (GRCh38)
Gene constraint
LOEUF 0.279 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 49.20 · 4 PDB
Residue 233
a UniProt-annotated variant site (in nedsid); the 'disordered' region
Full SETD1A 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/setd1a-p-ala233 (accessed [today's date]).

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