AHP2 (HISTIDINE-CONTAINING PHOSPHOTRANSMITTER 2); histidine phosphotransfer kinase/ protein binding / signal transducer. Identical to Histidine-containing phosphotransfer protein 2 (AHP2) [Arabidopsis Thaliana] (GB:Q9ZNV8;GB:Q3EAX3); similar to AHP3/ATHP2 (HISTIDINE-CONTAINING PHOSPHOTRANSMITTER 3), histidine phosphotransfer kinase [Arabidopsis thaliana] (TAIR:AT5G39340.1); similar to putative histidine-containing phosphotransfer protein 3 [Populus x canadensis] (GB:CAH56501.1); contains InterPro domain Hpt (InterPro:IPR008207)