Function
The HK4 antibody targets a cytokinin receptor homologous to bacterial two-component regulatory systems. This receptor functions as a histidine kinase, transmitting stress signals via a downstream mitogen-activated protein kinase (MAPK) cascade.
Subcellular Location
Cell membrane; Multi-pass membrane protein.
Tissue Specificity
Highly expressed in young leaves and spikelets, and at lower levels in roots, mature leaves and stems.