Information report for OsKAT2
Gene Details
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Functional Descriptions
- Here we report the characterization of two inward rectifying shaker-like potassium channels, OsKAT2 and OsKAT3, expressed in guard cell of rice plants.
- While OsKAT2 showed typical potassium channel activity, like that of Arabidopsis KAT1, OsKAT3 did not despite high sequence similarity between the two channel proteins.
- Interestingly, the two potassium channels physically interacted with each other and such interaction negatively regulated the OsKAT2 channel activity in CHO cell system.
- Unique features of two potassium channels, OsKAT2 and OsKAT3, expressed in rice guard cells.
- Interestingly, overexpression of OsKAT2(T235R) did not cause serious defects in growth or yield in rice, suggesting that OsKAT2 is a potential target for engineering plants with improved drought tolerance without yield penalty.
- A Dominant Negative OsKAT2 Mutant Delays Light-Induced Stomatal Opening and Improves Drought Tolerance without Yield Penalty in Rice.
- Our results indicate that OsKAT2 is an inward- rectifying shaker-like potassium channel that mainly functions in stomatal opening.
- Here, we investigated the functions of OsKAT2 in stomatal regulation using three dominant negative mutant proteins, OsKAT2(T235R), OsKAT2(T285A) and OsKAT2(T285D), which are altered in amino acids in the channel pore and at a phosphorylation site.
- In the present study, we found that the repression of OsAKTs, OsKAT2, and OsKAT2 in roots was related to salinity tolerance in rice.
Functional Keywords
Literature and News
- Unique features of two potassium channels, OsKAT2 and OsKAT3, expressed in rice guard cells . DOI: 10.1371/journal.pone.0072541 ; PMID: 23967316
- A Dominant Negative OsKAT2 Mutant Delays Light-Induced Stomatal Opening and Improves Drought Tolerance without Yield Penalty in Rice . DOI: 10.3389/fpls.2017.00772 ; PMID: 28553305
- Genome-Wide Analysis of Potassium Channel Genes in Rice: Expression of the OsAKT and OsKAT Genes under Salt Stress . DOI: 10.3390/genes12050784 ; PMID: 34065373
Gene Resources
- UniProt: A0A0P0V045
- EMBL: AP014957
- AlphaFoldDB: A0A0P0V045
- EnsemblPlants: Os01t0210700-01
- Gramene: Os01t0210700-01
- KEGG: dosa:Os01g0210700
- Orthologous matrix: CESNCEF
- InterPro: IPR000595, IPR005821, IPR014710
- PANTHER: PTHR45743, PTHR45743:SF54
- SUPFAM: SSF51206, SSF81324
- PROSITE: PS50042, PS51490
- Gene3D: 1.10.287.70, 2.60.120.10
- OrthoDB: A0A0P0V045
- Conserved Domain Database: cd00038
Sequences
cDNA Sequence
- >LOC_Os01g11250.1
TTATTTATGCTGCATTCACAGCTACCACTTCACACTCAGCTAGTCAAGATTACCTGGCACACTCAGAAATGTACCACCAACATGTCAGTAATAAAAACAGCCTCTAGGAACTAAGATCTCGACTTAGGCACCTCCCACTTCTAACTAGACACTCCAATGGAAACTATTAGCAATATCTTTCACAATGACCCACTCCCACCTCTAGGAGCAAGAGCAAACCAATCTATCAAGCTGAGAAAATTCATTATTTCTCCATATGATTCCCGTTACAGGACCTGGGAGACGTTCTTGCTCGTGCTTGTTGTTTATTCAGCTTGGATCTGCCCATTTGAACTAGCATATCTGAGAAATCTCTCCTGGAAGGTTTCTCTTGTTGACAATATTATTGACAGCTTCTTTGCAATCGATATTATTCTCACATTTTTTCTAGCGTATCTGGATCAAAAGTCATATCTTCTAGTGGATGATCCAAAAAGGATCGTGGCTAGGTTACTTAGCATGCTTCGATTATGGCGTCTCCGGCGCCTCAGTGAATTATTTGCCAGGCTCGAAAAGGATATCCGATTGAATTACTACTGGATAAGGTGCACCAAACTAATTTCTGTTACACTTTTTGCGGTACATTGTTCAGGATGCTTCAATTATTTAATAGCTGATAGATACCCCAATCCAGCAAGAACATGGATAGGAGCAGCAATACCAAACTACAGATCACAAAATCTGTGGGTTCGATATGTTACGGCAATTTATTGGTCCATAACAACACTCACAACAACTGGTTATGGGGATTTGCATGCAGAGAATCAAAGAGAAATGTTATTTAGCATATGCTACATGCTATTTAACCTGGGATTGACAGCATACCTCATAGGTAACATGACAAATCTGGTTGTTCAGGGAAGTTGCCGGACCAGGAATTTTAGGGACACAATCCATGCTGCCTCTCAGTTTGCTGCAAGAAATCAGTTGCCTGGACATATTAAGGACGAAATGCTATCTCATATCTGCCTAAGATATAAAACAGAGGGGCTGAAACAGAAAGAAACATTGGATAGTCTCCCCAAGGGAATCCGTTCAAGCATAGCGTGCAACTTATTCTTACCTGTTATAGAAAAAGTCTATCTTTTCCATGGTGTCTCATTTACTTGCATGATCCAACTGGTAACTGAAATGGAAGCAGAGTACTACCCACCAAGAGAAGTTGTCATACTCCAAAATGAAGCACCCCGAGATGTTTACATATTAGTTTCGGGAGCAGTGGAAGAGCGGGTAGAGATCGATGGAACAGAAAAGGTCCAGGAAGTACTGTGCAATGGTGAAATATTTGGAGAAATAGGAGTTATCTGCAGCATCCCCCAGCCATGTGCTTTCCATACAATCAAAGTTTCACAACTATTAAGGCTGAACACAGCAGTGCTAAAGAACATTATCAAGGAAAACAGCGATGACAGACGAGTTATTCTGAACAATCTTTCCCAGAAGATGAACCAAGATCACAGGTTCTCTACCGAGGTGATGGAAAAATCTTTACAGATGATGCATCAACACTTTGGAGAGTACAACAGATGTTCTGCATTGAATCAAGACAATGAGAAGAATGAATTAAAAGCTAATAATGGTCATTCTATGGCTTTAGAATGGAAAAGAGTGACAATACATATGTATTCACAGAGGAACAAAAGACCGGAGGCACCGCTTGCAAAAGTTATAAATCTACCAGGATCTCTTGATAAACTTTTCGCCATAGCTTGTCAGAAGTTTAACAATTATCGTCTTACAAAACTTGTCAATCCAGAATTTGCTGAAATTGATGATATTACAGTAATTCGAGATGGTGATCATCTGTTTTTTATGGAAATTTGAATAAGGATGCTTGAAATCAGCAACGATGCAAAGAACTGCAGATAGGTATGTAGTATACCTTTCAGAAGGTACCAGATTAAGATAATAGTGATCACTAATCAGGCATGAGGCGACTTGGCATGATAATCAAGAACATGCCACCTAGGGATGTTTCGAGTTGCAGTCCTGTAGTTACATCTAATTTTACTTTAGAATGTAAATGTAGAATTTTGGAGCAATGTAGTCTCTATTCCGCTTTCAAAATGTTGGATCATGGCAGAGGGCAGCCCTCTATGATCTGTGGAGTTTGTAATGTAGCTATAGTGCAACGAAAGATACTAATATCGTTTACAGGTACTTTATAGTGTTTCTCCAAGTTTTTTTTGAAATAAATGATGAAACAGACATGC
CDS Sequence
- >LOC_Os01g11250.1
ATGGAAACTATTAGCAATATCTTTCACAATGACCCACTCCCACCTCTAGGAGCAAGAGCAAACCAATCTATCAAGCTGAGAAAATTCATTATTTCTCCATATGATTCCCGTTACAGGACCTGGGAGACGTTCTTGCTCGTGCTTGTTGTTTATTCAGCTTGGATCTGCCCATTTGAACTAGCATATCTGAGAAATCTCTCCTGGAAGGTTTCTCTTGTTGACAATATTATTGACAGCTTCTTTGCAATCGATATTATTCTCACATTTTTTCTAGCGTATCTGGATCAAAAGTCATATCTTCTAGTGGATGATCCAAAAAGGATCGTGGCTAGGTTACTTAGCATGCTTCGATTATGGCGTCTCCGGCGCCTCAGTGAATTATTTGCCAGGCTCGAAAAGGATATCCGATTGAATTACTACTGGATAAGGTGCACCAAACTAATTTCTGTTACACTTTTTGCGGTACATTGTTCAGGATGCTTCAATTATTTAATAGCTGATAGATACCCCAATCCAGCAAGAACATGGATAGGAGCAGCAATACCAAACTACAGATCACAAAATCTGTGGGTTCGATATGTTACGGCAATTTATTGGTCCATAACAACACTCACAACAACTGGTTATGGGGATTTGCATGCAGAGAATCAAAGAGAAATGTTATTTAGCATATGCTACATGCTATTTAACCTGGGATTGACAGCATACCTCATAGGTAACATGACAAATCTGGTTGTTCAGGGAAGTTGCCGGACCAGGAATTTTAGGGACACAATCCATGCTGCCTCTCAGTTTGCTGCAAGAAATCAGTTGCCTGGACATATTAAGGACGAAATGCTATCTCATATCTGCCTAAGATATAAAACAGAGGGGCTGAAACAGAAAGAAACATTGGATAGTCTCCCCAAGGGAATCCGTTCAAGCATAGCGTGCAACTTATTCTTACCTGTTATAGAAAAAGTCTATCTTTTCCATGGTGTCTCATTTACTTGCATGATCCAACTGGTAACTGAAATGGAAGCAGAGTACTACCCACCAAGAGAAGTTGTCATACTCCAAAATGAAGCACCCCGAGATGTTTACATATTAGTTTCGGGAGCAGTGGAAGAGCGGGTAGAGATCGATGGAACAGAAAAGGTCCAGGAAGTACTGTGCAATGGTGAAATATTTGGAGAAATAGGAGTTATCTGCAGCATCCCCCAGCCATGTGCTTTCCATACAATCAAAGTTTCACAACTATTAAGGCTGAACACAGCAGTGCTAAAGAACATTATCAAGGAAAACAGCGATGACAGACGAGTTATTCTGAACAATCTTTCCCAGAAGATGAACCAAGATCACAGGTTCTCTACCGAGGTGATGGAAAAATCTTTACAGATGATGCATCAACACTTTGGAGAGTACAACAGATGTTCTGCATTGAATCAAGACAATGAGAAGAATGAATTAAAAGCTAATAATGGTCATTCTATGGCTTTAGAATGGAAAAGAGTGACAATACATATGTATTCACAGAGGAACAAAAGACCGGAGGCACCGCTTGCAAAAGTTATAAATCTACCAGGATCTCTTGATAAACTTTTCGCCATAGCTTGTCAGAAGTTTAACAATTATCGTCTTACAAAACTTGTCAATCCAGAATTTGCTGAAATTGATGATATTACAGTAATTCGAGATGGTGATCATCTGTTTTTTATGGAAATTTGA
Protein Sequence
- >LOC_Os01g11250.1
METISNIFHNDPLPPLGARANQSIKLRKFIISPYDSRYRTWETFLLVLVVYSAWICPFELAYLRNLSWKVSLVDNIIDSFFAIDIILTFFLAYLDQKSYLLVDDPKRIVARLLSMLRLWRLRRLSELFARLEKDIRLNYYWIRCTKLISVTLFAVHCSGCFNYLIADRYPNPARTWIGAAIPNYRSQNLWVRYVTAIYWSITTLTTTGYGDLHAENQREMLFSICYMLFNLGLTAYLIGNMTNLVVQGSCRTRNFRDTIHAASQFAARNQLPGHIKDEMLSHICLRYKTEGLKQKETLDSLPKGIRSSIACNLFLPVIEKVYLFHGVSFTCMIQLVTEMEAEYYPPREVVILQNEAPRDVYILVSGAVEERVEIDGTEKVQEVLCNGEIFGEIGVICSIPQPCAFHTIKVSQLLRLNTAVLKNIIKENSDDRRVILNNLSQKMNQDHRFSTEVMEKSLQMMHQHFGEYNRCSALNQDNEKNELKANNGHSMALEWKRVTIHMYSQRNKRPEAPLAKVINLPGSLDKLFAIACQKFNNYRLTKLVNPEFAEIDDITVIRDGDHLFFMEI*