MPK10 Antibody

Biological Context of MPK10

MPK10 is a member of the MAP kinase family involved in:

• Plant development: Regulation of endosperm growth via cross-inhibition with transcription factor WRKY10 in Arabidopsis

• Parasite differentiation: Stage-specific activation during Leishmania amastigote development, critical for host adaptation

Key Applications of MPK10 Antibody

Regulatory Mechanisms

• Auto-inhibition: In Leishmania, MPK10’s C-terminal domain (aa 368–485) suppresses kinase activity until environmental triggers (e.g., pH/temperature shifts) relieve this inhibition .

• Cross-species conservation: Despite 90%+ sequence identity in Leishmania species, functional divergence exists in plant vs. parasite systems .

Functional Insights

• Plant studies:

  • mpk10 mutants showed 2.5-fold increased WRKY10 expression (2DAP seeds, P < 0.01) .

  • MPK10 knockdown led to 18% larger seeds due to deregulated endosperm expansion .

• Parasite studies:

  • Hyperactive MPK10 (ΔC-terminal 46aa) caused 70% cell death during amastigote differentiation .

  • Phospho-serine 395 was identified as a critical regulatory residue for kinase activity .

Technical Considerations for MPK10 Antibodies

Challenges and Future Directions

• Limitations: No commercial MPK10 antibodies are explicitly cited in current literature; most studies use epitope-tagged proteins (e.g., GFP/Flag) .

• Opportunities:

  • Develop phospho-specific antibodies to study MPK10 activation dynamics.

  • Explore therapeutic targeting of Leishmania MPK10 in visceral leishmaniasis .