AT4G16340 SPIKE1 SPK1 SPIKE1 (SPK1); FUNCTIONS IN: GTPase binding, GTP binding, guanyl-nucleotide exchange factor activity; LOCATED IN: cytosol, plasma membrane; EXPRESSED IN: 22 plant structures; EXPRESSED DURING: 13 growth stages; CONTAINS InterPro DOMAIN/s: Dedicator of cytokinesis (InterPro:IPR010703); Has 1667 Blast hits to 1104 proteins in 136 species: Archae - 0; Bacteria - 0; Metazoa - 1334; Fungi - 77; Plants - 63; Viruses - 0; Other Eukaryotes - 193 (source: NCBI BLink).