Phytophthora H3K4me3 methyltransferase KMT2 as a candidate fungicide target
Research identifying KMT2 as a critical epigenetic regulator in Phytophthora species. The methyltransferase is essential for pathogen survival and structurally distinct from the host plant equivalent, making it a promising target for novel fungicide development through chemical inhibitor screening.
Overview
This research program targets KMT2, a histone H3K4me3 methyltransferase in Phytophthora species, as a candidate fungicide target. Phytophthora pathogens cause significant crop losses worldwide, and current control measures face increasing resistance challenges. The research team has generated unpublished data demonstrating that KMT2 is essential for Phytophthora sojae survival, as gene knockout is lethal. The protein structure of KMT2 differs from its host plant counterpart, suggesting that selective inhibitors could be developed to disrupt pathogen epigenetic regulation without affecting the host crop.
The value proposition centers on identifying a novel molecular target for fungicide development. By focusing on an epigenetic regulator unique to Phytophthora, the research opens a pathway to next-generation crop protection agents with new modes of action, potentially overcoming resistance issues associated with existing fungicide classes.
Technical specifications
Key research findings supporting KMT2 as a target:
- Phytophthora histones carry various epigenetic modifications, including H3K4me3
- H3K4me3 is tightly associated with positive gene expression and conserved genome compartments in Phytophthora
- KMT2 knockout in P. sojae is lethal, confirming its essential role in pathogen viability
- Protein structure simulation of KMT2 reveals differences from the host plant homolog, supporting selectivity potential
Research capabilities:
- Histone methylation level detection
- Methylation site screening across different genomic contexts
- Phytophthora genetics and functional genomics
Seeking partnership support for:
- Access to chemical libraries for inhibitor screening
- Protein crystal structure dissection to support structure-based drug design
- Overcoming the current bottleneck in gene knockout validation due to the essential nature of KMT2
Technology readiness level
The research is at an early-to-mid stage of target validation. The team has established preliminary evidence confirming KMT2 as essential in Phytophthora and has demonstrated the technical capabilities for histone methylation analysis. The next critical step requires chemical inhibitor screening to validate druggability and protein structural studies to enable rational inhibitor design. A partnership providing access to chemical libraries and structural biology resources would accelerate progression toward identifying lead compounds for fungicide development.
About Nanjing Agricultural University
Nanjing Agricultural University is a public research university with an agricultural focus in Nanjing, advancing national and regional priorities through integrated basic-to-applied research and field training. Industry engages through experimental farms, field stations, controlled-environment facilities, and pilot processing spaces for prototyping and scale‑up. An industry liaison team supports sponsored research, testing services, and joint labs, while regional demonstration sites speed on‑farm trials across the Yangtze River Delta. Research is supported by national and provincial programs, including the National Natural Science Foundation of China and the Ministry of Science and Technology. A technology transfer office manages IP, licensing, and startup incubation.
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