NSD2 p.Ser778=
c.2334A>G · rs147143904 · VCV734592
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
rare (popmax 0.104%, 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 -9.1 | GERP -3.6 |
| Overall | ||
| CADD | 0.051 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.104%
African / African-American · 78/74,990 alleles
Filtering AF
0.0854%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0786%
Overall
0.00864%
139/1,608,682 alleles · rare
exomes 105/1,456,350 · genomes 34/152,332 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.104% | 961 |
| Remaining individualsnot grpmax-eligible | 0.0369% | 2,712 |
| Admixed American | 0.00835% | 11,974 |
| South Asian | 0.00443% | 22,591 |
| European (non-Finnish) | 0.00246% | 40,620 |
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
- NSD2
- Protein
- p.Ser778=
- Coding
- c.2334A>G
- MANE Select
- NM_001042424
- dbSNP
- rs147143904
- Type
- single nucleotide variant
- Location
- chr4:1953520 (GRCh38)
- Gene constraint
- LOEUF 0.139 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 66.22 · 24 PDB
- Residue 778
- a UniProt-annotated variant site (in raust)
Similar variants
- NSD2 p.Ser778Leu Likely benign ★ same residue
- NSD2 p.Arg450Ter Likely pathogenic ★★ same type
- NSD2 p.Arg755Ter Pathogenic/Likely pathogenic ★★ same type
- NSD2 p.Arg935Ter Pathogenic ★★ same type
- NSD2 p.Pro895Leu Pathogenic ★★ same type
- NSD2 p.Ala320Thr Uncertain significance ★★ ⚠ same type
- NSD2 p.Ala383Gly Uncertain significance ★★ ⚠ same type
- NSD2 p.Ala693Asp Uncertain significance ★★ ⚠ 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/nsd2-p-ser778 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown