NSD2
Chr 4ADnuclear receptor binding SET domain protein 2
Also known as: KMT3F, KMT3G, MMSET, RAUST, REIIBP, TRX5, WHS, WHSC1
The protein encoded by this gene is a histone methyltransferase that contains PWWP, HMG box, SET, and PHD domains and functions in chromatin modification during early development. Loss-of-function mutations cause Rauch-Steindl syndrome through an autosomal dominant inheritance pattern. The gene is also located within the Wolf-Hirschhorn syndrome critical region on chromosome 4p16.3 and contributes to the malformation phenotype seen with deletions of this chromosomal region.
Definitive — sufficient evidence for diagnostic panels
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Among the most LoF-intolerant genes (~top 3%)
Highly missense-constrained (top ~0.1%)
The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).
Literature Evidence
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.
ClinVar Variant Classifications
800 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 38 | 5 | 71 | 0 | 114 |
Likely Pathogenic | 19 | 15 | 9 | 1 | 44 |
VUS | 9 | 271 | 30 | 4 | 314 |
Likely Benign | 2 | 51 | 61 | 124 | 238 |
Benign | 0 | 3 | 19 | 7 | 29 |
Conflicting | — | 26 | |||
| Total | 68 | 345 | 190 | 136 | 765 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
NSD2 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
3D Protein StructureAlphaFold
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools