Description : (at3g02850 : 124.0) Encodes SKOR, a member of Shaker family potassium ion (K+) channel. This family includes five groups based on phylogenetic analysis (FEBS Letters (2007) 581: 2357): I (inward rectifying channel): AKT1 (AT2G26650), AKT5 (AT4G32500) and SPIK (also known as AKT6, AT2G25600); II (inward rectifying channel): KAT1 (AT5G46240) and KAT2 (AT4G18290); III (weakly inward rectifying channel): AKT2 (AT4G22200); IV (regulatory subunit involved in inwardly rectifying conductance formation): KAT3 (also known as AtKC1, AT4G32650); V (outward rectifying channel): SKOR (AT3G02850) and GORK (AT5G37500). Mediates the delivery of K+ from stelar cells to the xylem in the roots towards the shoot. mRNA accumulation is modulated by abscisic acid. K+ gating activity is modulated by external and internal K+.; STELAR K+ outward rectifier (SKOR); FUNCTIONS IN: outward rectifier potassium channel activity, cyclic nucleotide binding; INVOLVED IN: potassium ion transport, response to abscisic acid stimulus; LOCATED IN: membrane; EXPRESSED IN: 8 plant structures; EXPRESSED DURING: L mature pollen stage, M germinated pollen stage, 4 anthesis; 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: gated outwardly-rectifying K+ channel (TAIR:AT5G37500.1); Has 82938 Blast hits to 34972 proteins in 1815 species: Archae - 147; Bacteria - 10317; Metazoa - 39460; Fungi - 7131; Plants - 3765; Viruses - 1138; Other Eukaryotes - 20980 (source: NCBI BLink). & (q8vyx2|akt1_orysa : 91.7) Potassium channel AKT1 (OsAKT1) - Oryza sativa (Rice) & (reliability: 248.0) & (original description: no original description)
Condition specificity: 1 h after light (SPM: 0.41, entropy: 3.08, tau: 0.36)