SETD1B p.Ala335=
c.1005G>A · VCV4918924
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0232%, 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 | ||
| Conservation | phyloP -7.3 | GERP -2.7 |
| Overall | ||
| CADD | 0.141 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0232%
African / African-American · 17/73,120 alleles
Filtering AF
0.0147%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0121%
Overall
0.00329%
51/1,551,012 alleles · ultra-rare
exomes 34/1,398,794 · genomes 17/152,218 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.0232% | 4,301 |
| Remaining individualsnot grpmax-eligible | 0.00499% | 20,035 |
| Admixed American | 0.00392% | 25,503 |
| European (non-Finnish) | 0.00253% | 39,551 |
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.Ala335=
- Coding
- c.1005G>A
- MANE Select
- NM_001353345
- Type
- single nucleotide variant
- Location
- chr12:121809950 (GRCh38)
- Gene constraint
- LOEUF 0.109 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 46.43 · 4 PDB
Similar variants
- SETD1B p.Ala335Val Conflicting classifications of pathogenicity ★ ⚠ same residue
- SETD1B p.Arg1329Ter Pathogenic ★★ same type
- SETD1B p.Arg1703Ter Pathogenic/Likely pathogenic ★★ same type
- SETD1B p.Arg1748Cys Pathogenic/Likely pathogenic ★★ same type
- SETD1B p.Arg1792Gln Pathogenic/Likely pathogenic ★★ ⚠ same type
- SETD1B p.Arg1825Trp Likely pathogenic ★★ same type
- SETD1B p.Arg1902Cys Pathogenic/Likely pathogenic ★★ same type
- SETD1B p.Gln780Ter Pathogenic/Likely pathogenic ★★ same type
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-ala335 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown