AKT6 Shaker pollen inward K+ channel (SPIK); FUNCTIONS IN: inward rectifier potassium channel activity, cyclic nucleotide binding, potassium channel activity; INVOLVED IN: pollen tube growth; LOCATED IN: membrane; EXPRESSED IN: 6 plant structures; EXPRESSED DURING: L mature pollen stage, M germinated pollen stage, 4 anthesis, petal differentiation and expansion stage; CONTAINS InterPro DOMAIN/s: Cyclic nucleotide-binding (InterPro:IPR000595), Potassium channel, voltage-dependent, EAG/ELK/ERG (InterPro:IPR003938), Protein of unknown function DUF3354 (InterPro:IPR021789), Ankyrin repeat-containing domain (InterPro:IPR020683), Ion transport (InterPro:IPR005821), Cyclic nucleotide-binding-like (InterPro:IPR018490), RmlC-like jelly roll fold (InterPro:IPR014710), Ankyrin repeat (InterPro:IPR002110); BEST Arabidopsis thaliana protein match is: K+ transporter 5 (TAIR:AT4G32500.1); Has 83148 Blast hits to 34215 proteins in 1581 species: Archae - 129; Bacteria - 8355; Metazoa - 40552; Fungi - 7952; Plants - 3977; Viruses - 1178; Other Eukaryotes - 21005 (source: NCBI BLink). AT2G25600 Shaker pollen inward K+ channel SPIK