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SETD1B p.Ser1929=

c.5787G>A · VCV4919051

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0793%, 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 -7.9GERP -4.2
Overall
CADD0.632PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0793% African / African-American · 58/73,132 alleles
Filtering AF 0.0629% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.057%
Overall 0.00761% 118/1,551,488 alleles · ultra-rare exomes 80/1,399,238 · genomes 38/152,250 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0793% 1,261
Middle Eastern 0.0502% 1,993
Remaining individualsnot grpmax-eligible 0.0283% 3,535
South Asian 0.019% 5,254
Admixed American 0.0118% 8,499
East Asian 0.00489% 20,451
Finnishnot grpmax-eligible 0.00334% 29,952
European (non-Finnish) 0.00122% 81,919

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
SETD1B
Protein
p.Ser1929=
Coding
c.5787G>A
MANE Select
NM_001353345
Type
single nucleotide variant
Location
chr12:121830125 (GRCh38)
Gene constraint
LOEUF 0.109 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 46.43 · 4 PDB
Residue 1929
the set domain; a UniProt-annotated variant site (in iddseld)
Full SETD1B 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/setd1b-p-ser1929 (accessed [today's date]).

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