Histidine-containing phosphotransfer protein

UniProtKB accession:  Q9SLX1

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UniProtKB description:  Functions as a two-component phosphorelay mediators between cytokinin sensor histidine kinases and response regulators (B-type ARRs). Plays an important role in propagating cytokinin signal transduction through the multistep His-to-Asp phosphorelay. Functions as a positive regulator of the cytokinin signaling pathway. May play a regulatory role in salt and drought tolerance during plant development.