About GATA2
The GATA2 gene (GATA Binding Protein 2) on chromosome 3q21 Germline GATA2 mutations cause MonoMAC syndrome, dendritic cell/monocyte deficiency, and predisposition to myelodysplasia and AML. Key targets include Exons 2–7 for comprehensive mutation screening.
Mutations: T354M, L359V, R396Q, GATA2 deficiency | GC content: 54% | Target exons: Exons 2–7
GATA2 Primer Design Challenges
- Zinc finger domain mutations: Mutations cluster in the C-terminal zinc finger (exon 6) and N-terminal zinc finger (exon 4) requiring targeted coverage
- Moderate GC (54%): Standard conditions suitable but the promoter region contains critical E-box elements for autoregulation
- Variable expressivity: Wide phenotypic spectrum requires comprehensive exon coverage for all GATA2 deficiency syndrome subtypes
Recommended Primer Design Parameters for GATA2
| Parameter | Standard Exons | Optimized Regions |
|---|---|---|
| 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 | Optional 3–5% DMSO for problematic regions |
Recommended Primer Sequences for GATA2
| Target Region | Forward Primer (5′→3′) | Reverse Primer (5′→3′) | Amplicon |
|---|---|---|---|
| Exon 4 (N-finger) | 5′-TGTGTGTATGTTCCCCACCT-3′ | 5′-GACAGGGGACACAGGTTGAG-3′ | 175 bp |
| Exon 6 (C-finger) | 5′-CAGGGACACTACCTCTGCTC-3′ | 5′-AGCTCCACCATGTGATCCAT-3′ | 203 bp |
Key SNPs to Avoid in Primer Binding Sites
When designing GATA2 primers, avoid these clinically significant variants:
- rs121908658 (T354M) — Exon 6 C-finger mutation in MonoMAC
- rs199816018 (R396Q) — Exon 6 C-finger loss-of-function
- rs371076826 (L359V) — Exon 6 variant of uncertain significance
Clinical Validation Required
All GATA2 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 GATA2 Primers Now
Pre-configured with GATA2-specific parameters. Use our primer design, Tm calculator, and GC content tools for optimal results.