About EZH2
The EZH2 gene (Enhancer of Zeste 2 Polycomb Repressive Complex 2 Subunit) on chromosome 7q36 Gain-of-function Y641 hotspot mutations in the SET domain drive germinal center B-cell lymphoma and follicular lymphoma pathogenesis. Key targets include Exons 2–20 (SET domain in exons 16–20) for comprehensive mutation screening.
Mutations: Y641F/N/S, A677G, A687V | GC content: 62% | Target exons: Exons 2–20 (SET domain in exons 16–20)
EZH2 Primer Design Challenges
- High GC content (62%): Elevated GC extends across the SET domain (exons 16–20) requiring additive-optimized PCR conditions
- SET domain mutation cluster: Y641 (exon 16) and A677/A687 (exon 18) mutations require two targeted amplicons for complete coverage
- EZH2 inhibitor monitoring: Emerging resistance mutations require pre-planned primer redundancy for longitudinal liquid biopsy tracking
Recommended Primer Design Parameters for EZH2
| Parameter | Standard Exons | GC-Rich Regions (≥58%) |
|---|---|---|
| Primer length | 20–22 nt | 22–25 nt |
| GC content | 45–55% | 50–60% |
| Tm | 58–62°C | 60–65°C |
| Amplicon size | 150–300 bp | 180–350 bp |
| Annealing temp | 58–60°C | 60–64°C (touchdown) |
| PCR additive | Standard | Add 5–10% DMSO or betaine |
Recommended Primer Sequences for EZH2
| Target Region | Forward Primer (5′→3′) | Reverse Primer (5′→3′) | Amplicon |
|---|---|---|---|
| Exon 16 (Y641) | 5′-GGACTTGGGACACCTCTCTA-3′ | 5′-GTGGGATGAATGCAGCACAT-3′ | 198 bp |
| Exon 18 (A677/A687) | 5′-CCTCCCTGACTTCTGTGACT-3′ | 5′-TCCTGTGCTGTGATCATTCC-3′ | 214 bp |
Key SNPs to Avoid in Primer Binding Sites
When designing EZH2 primers, avoid these clinically significant variants:
- rs387906906 (Y641N) — Exon 16 SET domain gain-of-function in DLBCL
- rs387906908 (A677G) — Exon 18 SET domain alteration
- rs373733653 (A687V) — Exon 18 activating mutation
Clinical Validation Required
All EZH2 primers designed with VigyanLLM are for research use only. Clinical diagnostic applications require additional wet-lab validation, Sanger sequencing confirmation, and regulatory approval before patient use.
Design EZH2 Primers Now
Pre-configured with EZH2-specific parameters. Use our primer design, Tm calculator, and GC content tools for optimal results.