- Information
- Symbol: OsKAT1
- MSU: LOC_Os01g55200
- RAPdb: Os01g0756700
- Publication
-
Genbank accession number
- Key message
- Rice shaker potassium channel OsKAT1 confers tolerance to salinity stress on yeast and rice cells
- By the expression of OsKAT1, the K(+) contents of salt-stressed G19 cells increased during the exponential growth phase
- These results suggest that OsKAT1 is involved in salt tolerance of rice in cooperation with other K(+) channels by participating in maintenance of cytosolic cation homeostasis during salt stress and thus protects cells from Na(+)
- We found that expression of a cDNA clone, encoding the rice homolog of Shaker family K(+) channel KAT1 (OsKAT1), suppressed the salt-sensitive phenotype of yeast strain G19 (Deltaena1-4), which lacks a major component of Na(+) efflux
- Rice cells overexpressing OsKAT1 also showed enhanced salt tolerance and increased cellular K(+) content
- These functions of OsKAT1 are likely to be common among Shaker K(+) channels because OsAKT1 and Arabidopsis (Arabidopsis thaliana) KAT1 were able to complement the salt-sensitive phenotype of G19 as well as OsKAT1
- In addition, the real-time PCR results revealed that OsAKTs and OsKATs are induced by salt stress in root and shoot tissues of rice cultivars, and OsKAT1 was identified as a key gene involved in the rice response to salt stress
- Connection
- OsKAT1, OsKAT2, A Dominant Negative OsKAT2 Mutant Delays Light-Induced Stomatal Opening and Improves Drought Tolerance without Yield Penalty in Rice., Rice contains three inward rectifying shaker-like potassium channel proteins, OsKAT1, OsKAT2, and OsKAT3
- OsAIR2, OsKAT1, Molecular characterization of rice arsenic-induced RING Finger E3 ligase 2 OsAIR2 and its heterogeneous overexpression in Arabidopsis thalaiana., Moreover, in vitro pull-down assay verified the physical interaction between OsAIR2 and OsKAT1
- OsAIR2, OsKAT1, Molecular characterization of rice arsenic-induced RING Finger E3 ligase 2 OsAIR2 and its heterogeneous overexpression in Arabidopsis thalaiana., Interestingly, in vitro ubiquitination assay and in vivo proteasomal degradation assay revealed that OsAIR2 ubiquitinates OsKAT1 and promotes the degradation of OsKAT1 via the 26S proteasome degradation pathway
- OsAKT1, OsKAT1, Genome-Wide Analysis of Potassium Channel Genes in Rice: Expression of the OsAKT and OsKAT Genes under Salt Stress, Among the studied K+ channel proteins, OsKAT1 and OsAKT1 were identified as proteins with high potential N-glycosylation and phosphorylation sites, and LEU, VAL, SER, PRO, HIS, GLY, LYS, TYR, CYC, and ARG amino acids were predicted as the binding residues in the ligand-binding sites of K+ channel proteins
Prev Next