Gene Details:

• Gene ID: AT4G18290
• Gene Symbol: KAT2
• Gene Name: potassium channel in Arabidopsis thaliana 2
• Description: potassium channel KAT1-like protein;(source:Araport11)
• TAIR Accession: locus:2005531
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT4G18290.1     AT4G18290.2

Plant Ontology Annotations:

• PO:0000293  — guard cell — célula guardiana (Spanish, exact), occlusive cell (exact), 孔辺細胞 (Japanese, exact)

Gene Ontology:

• GO:0005515  — enables — protein binding
• GO:0009507  — located in — chloroplast
• GO:0005242  — enables — inward rectifier potassium channel activity
• GO:0005249  — enables — voltage-gated potassium channel activity
• GO:0007623  — acts upstream of or within — circadian rhythm
• GO:0009644  — acts upstream of or within — response to high light intensity
• GO:0005634  — located in — nucleus
• GO:0010118  — acts upstream of or within — stomatal movement

Function-related keywords:

• guard cell

Literature:

• KAT1 is not essential for stomatal opening.   DOI:  10.1073/pnas.051616698 ;  PMID:  11226341
• AKT2/3 subunits render guard cell K+ channels Ca2+ sensitive.   DOI:  10.1085/jgp.200409211 ;  PMID:  15824192
• The guard cell as a single-cell model towards understanding drought tolerance and abscisic acid action.   DOI:  10.1093/jxb/ern340 ;  PMID:  19181866
• AtKC1 is a general modulator of Arabidopsis inward Shaker channel activity.   DOI:  10.1111/j.1365-313X.2011.04617.x ;  PMID:  21518051
• S-type Anion Channels SLAC1 and SLAH3 Function as Essential Negative Regulators of Inward K+ Channels and Stomatal Opening in Arabidopsis.   DOI:  10.1105/tpc.16.01050 ;  PMID:  27002025
• The Arabidopsis guard cell outward potassium channel GORK is regulated by CPK33.   DOI:  10.1002/1873-3468.12687 ;  PMID:  28543075
• The endophytic fungus Piriformospora indica enhances Arabidopsis thaliana growth and modulates Na(+)/K(+) homeostasis under salt stress conditions.   DOI:  10.1016/j.plantsci.2017.07.006 ;  PMID:  28818365
• Calcium-Regulated Phosphorylation Systems Controlling Uptake and Balance of Plant Nutrients.   DOI:  10.3389/fpls.2020.00044 ;  PMID:  32117382
• Ca(2+)-Dependent Protein Kinase 6 Enhances KAT2 Shaker Channel Activity in Arabidopsis thaliana.   DOI:  10.3390/ijms22041596 ;  PMID:  33562460
• Cell type-specific proteomics uncovers a RAF15-SnRK2.6/OST1 kinase cascade in guard cells.   DOI:  10.1111/jipb.13536 ;  PMID:  37226855

Sequence: