Information report for OsAKT1
Gene Details
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Functional Descriptions
- To unravel the mechanisms of K+ uptake and its sensitivity to salt stress in the model plant rice, we isolated and functionally characterized OsAKT1, a potassium channel homologous to the Arabidopsis root inward rectifier AKT1.
- OsAKT1 transcripts were predominantly found in the coleoptile and in the roots of young rice seedlings.
- Patch-clamp studies on rice root protoplasts identified a K+ inward rectifier with similar channel properties as heterologously expressed OsAKT1.
- In line with the transcriptional downregulation of OsAKT1 in response to salt stress, inward K+ currents were significantly reduced in root protoplasts.
- Thus, OsAKT1 seems to represent the dominant salt-sensitive K+ uptake channel in rice roots.
- Rice K+ uptake channel OsAKT1 is sensitive to salt stress.
- The Os-AKT1 Channel Is Critical for K+ Uptake in Rice Roots and Is Modulated by the Rice CBL1-CIPK23 Complex.
- Disruption of Os-AKT1 significantly reduced the K+ content, which resulted in inhibition of plant growth and development.
- The most prominent result of OsAKT1 overexpression was a reduction in sensitivity to osmotic/drought stress in transgenic plants: the data suggest that AKT1 overexpression improved rice osmotic and drought stress tolerance by increasing tissue levels of K(+), especially in the root.
- However, loss-of-function of OsAKT1 increased the sensitivity to excess Fe regarding leaf bronzing symptoms, reactive oxygen species generation, leaf spectral reflectance indices, and chlorophyll fluorescence.
- In conclusion, OsAKT1 is crucial for the tolerance of rice against Fe toxicity as K homeostasis affects Fe translocation from root to shoot.
- Potassium Ion Channel Gene OsAKT1 Affects Iron Translocation in Rice Plants Exposed to Iron Toxicity.
Functional Keywords
- potassium , root , salt , salt-stress , seedling , potassium-uptake , plant-growth , growth , development , drought , tolerance , stress , drought-stress , stress-tolerance , leaf , shoot , homeostasis , iron , reactive-oxygen-species
Literature and News
- Rice K+ uptake channel OsAKT1 is sensitive to salt stress . DOI: 10.1007/s00425-004-1437-9 ; PMID: 15599592
- The Os-AKT1 Channel Is Critical for K+ Uptake in Rice Roots and Is Modulated by the Rice CBL1-CIPK23 Complex . DOI: 10.1105/tpc.114.123455 ; PMID: 25096783
- Overexpression of the rice AKT1 potassium channel affects potassium nutrition and rice drought tolerance . DOI: 10.1093/jxb/erw103 ; PMID: 26969743
- Potassium Ion Channel Gene OsAKT1 Affects Iron Translocation in Rice Plants Exposed to Iron Toxicity . DOI: 10.3389/fpls.2019.00579 ; PMID: 31134118
- Calcium lignosulfonate improves proliferation of recalcitrant indica rice callus via modulation of auxin biosynthesis and enhancement of nutrient absorption . DOI: 10.1016/j.plaphy.2021.01.046 ; PMID: 33581621
- Silicon alleviates salt stress-induced potassium deficiency by promoting potassium uptake and translocation in rice (Oryza sativa L.) . DOI: 10.1016/j.jplph.2021.153379 ; PMID: 33639555
- 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: Q0JKV1
- EMBL: AK120308, AP008207, AP014957
- AlphaFoldDB: Q0JKV1
- EnsemblPlants: Os01t0648000-01
- Gramene: Os01t0648000-01
- KEGG: dosa:Os01g0648000
- Orthologous matrix: KRVTFQN
- InterPro: IPR000595, IPR002110, IPR003938
- PANTHER: PTHR45743, PTHR45743:SF2
- SUPFAM: SSF48403, SSF51206, SSF81324
- PROSITE: PS50042, PS50088, PS50297
- Gene3D: 1.10.287.70, 1.25.40.20, 2.60.120.10
- OrthoDB: Q0JKV1
- SWISS-MODEL: Q0JKV1
- Conserved Domain Database: cd00038
- eggNOG: KOG0498
Sequences
cDNA Sequence
- >LOC_Os01g45990.1
AAGCTCGATCGAAGCTCTCACCTCTCCTCTCTTCTCTTCTCTTCTTCCGCGACACGTCTTCGCCGCCGCCGCAGCCGCCGTCGGGCGTCGGCTCTCCTCCACTTACCAGAAAACCGAATCACCGAGAACTTCTCTCTCTAGTATTCAAGGCGAGAGATTCCCACCCCGCGATTCCCTTGCAGGCCGCCAGATTTGTGGGCCTTGTGGGGGTGGGCGCTCCATTAAACCCGAGAGAGGGGAGGCACGCGCGCCCGCCGAGGGGCAGCGCAATGGCGAGGTGGGGCGCCGCTCGGATGGCGGCGTGCGGGCCGTGGGGCCGCAACCGGAGGGTCGGCGCCGGCGACGCGTTCGAGGCCAGCGAGGTGAGGCGGGACGGGCGCAGCAGGATGATGCCCGCGTGCGGGCCGTGGGGGGCGGGCCATGGCGGCGGGGACCCGGCGCTCGAGAGGGAGCTGTCGCGGGACGGCAGCCACTACAGCATCTCCAGCGCCATCCTCCCGTCGCTCGGCGCGCGGAGCAACCGCCGCATCAAGCTCCGCCGCTTCATCATCTCCCCCTACGACCGCCGATACAGAATCTGGGAGACTTTCCTCATAGTTCTTGTAGTCTACTCTGCGTGGGTCTCACCATTTGAATTTGGCTTCATTCCGAAGCCTACGGGGGCTCTAGCTACAGCCGACAATGTGGTGAATGCATTCTTCGCGGTTGACATCATTCTGACCTTCTTTGTGGCTTATTTGGATAAAATGAGCTATATGCTTGAAGATGATCCAAAGAAGATCGCATGGCGTTATAGTACCACATGGCTTGTTCTTGACGTGGCCTCCACCATCCCATCAGAATTTGCTCGCAGGATACTACCTTCAAAGCTTAGGTCATATGGATTTTTCAACATGCTTCGTCTGTGGCGTCTCCGCAGAGTCAGCTCTCTGTTTTCTAGGTTGGAGAAGGATAGACACTTCAATTACTTCTGGGTTCGATGTGCAAAGCTCATTTGTGTCACACTTTTTGCTGTGCACTGTGCGGCATGCTTCTACTATCTTCTTGCTGATAGGTACCCCGTCCCAACTTCTACGTGGATTGGCAATTACATGGCAGATTTCCATGAACGGAGCTTATGGATTCGCTACGTAACATCAGTCTATTGGTCAATCACCACTCTTACCACCGTGGGCTATGGGGATCTACATGCAGAAAATACAAGGGAGATGATCTTCAACATTTTCTACATGCTCTTTAACCTTGGTTTGACCGCTTATTTGATCGGTAACATGACCAATTTGGTTGTCCATGGCACTAGTCGTACTCGAAACTATAGGGATACAATCCAAGCAGCAACAAGCTTTGGAGTAAGAAATCAGCTACCACCTCGGCTGCAAGATCAGATGATTTCACATATTAGCTTAAAATACAGGACAGATTCAGAAGGTCTTCAACAACAAGAGATCCTTGATTCACTGCCTAAAGCTATTAAATCTAGCATTTCTCAATATCTGTTCTTCCATCTGGTTCAAAATGTTTACCTGTTTCAAGGAGTCTCAAATGATCTGATTTTTCAACTGGTTTCGGAGATGAAAGCTGAATATTTTCCACCTAGGGAGGATGTGATTTTGCAGAATGAAGCACCCACTGACTTCTACATCTTAGTTTCTGGTAGTGTGGAGTTAGTAGAGCAGCAAAATGGTGCAGACCAGGTGATACAAGTGGCTACGTCAGGAGAGGTTGTTGGAGAAATTGGGGTTCTTTGCTACAGACCTCAGCTATTCACAGTTCGAACAAGATCCTTGTGCCAGTTGTTGCGTTTGAATCGTACAGCTTTTCTCAGCATTGTTCAATCCAATGTTGGGGATGGAACTATCATAATGAACAACCTTATTCAGTTCCTTAAAGAGCAGAAGGAGAACAGTGTAATGGCTGGTGTCGTAAAGGAGATAGAGAGTATGCTAGCTCGGGGAAATCTGGATTTGCCAATTACACTCTGTTTTGCAGTAACTAGAGGAGATGATTTTTTGTTGCATCAACTTCTTAAGCGTGGTATGGATCCAAATGAGTCAGATAATGACGGGCATACCGCACTGCATATAGCTGCTTCCAAAGGAAACGAGCAATGCGTCAGGCTTCTATTAGAATATGGAGCTGATCCAAATGCCAGAGACTCAGAAGGAAAAGTTCCACTGTGGGAAGCGCTGTGTGAGAAGCACGCCGCCGTCGTGCAACTATTAGTCGAAGGCGGCGCGGATCTGTCGTCGGGTGACACGGGCTTATACGCTTGCATCGCCGTGGAGGAGAGCGACACCGAGCTGCTCAACGACATCATTCACTACGGAGGCGACGTGAACAGGGCTCGCCGGGACGGGACCACCGCCCTGCACCGCGCCGTCTGCGACGGCAACGTCCAGATGGCCGAGCTCTTGCTGGAACACGGAGCCGACATCGACAAGCAGGACGGCAACGGCTGGACCCCGAGAGCCCTCGCCGAGCAGCAGGGCCACGACGACATCCAGCTCCTGTTCCGGTCGCGCAAGGCGGCGACGGCGAGTGGCCACCATCACGTCCCAAGCTCCACCACCACCAGGGTGGCGCCGGCGGCGGCGGCGGCATCACTGATCGGGAGGTTCAACAGCGAGCCCATGATGAAGAACATGATCCACGAAGACGCCGACCTGCCCAGCCGGGTTCTCCCCGAGAAGCTCCGGAGGAAGCGGGTCACCTTCCAGAACTCCCTCTTCGGGGTCATCTCGTCGTCGCAGGCGCAGCGGGAGACCGACCACCCGCTCTCGAGGGGTGGCCTCGCGGCGACGGGCTCCCCGAACCCGAGCAGCGGCAGCCGCAACGCCGTCATCAGGGTGACGATCAGCTGCCCCGAGAAAGGGAACACCGCCGGGAAGCTCGTGCTCCTGCCTCAGACGCTGGACATGCTCCTCGAGCTCGGCGCCAAGAAGTTCGACTTCGCGCCAACCAAGGTTCTCACCGTGGAGGGCGCCGAGGTTGACGAGGTGGAGCTCATCAGAGACGGCGATCATCTTGTGCTCGTCAGTAATGAATGGGATGCAGAGAAGATGAAAGGCAAGAGCTAGTAAAGGAGTTGTGTGTTTTTTTTTCTTTTTCTTTTTTGGTTGTTTACTGTTGATTTCCAAGAAAGGGGAGATAGAATTTACCCCGGAGTCCAACGGTTAGCTAAGGAATAACTGGAAATCATTGGTATAGTTATTCCACCATGAAGAGATGGTGAAATTGATGGGTTACGTCCGGTGTTCGTAAGTAGAGAAGCGTAAGAATTTGATTTTGTTATAGCGTGTTGTGATGTTAGCCTGTTTTTGTTTTAGTTGGCAAGTTGATCTGCTGGCATGTACAGTTTTACGCTTTTCTAATTTTTGAAGGAAAAGTCCAAAGAATGTACCAGTGCTTCATTATTATTCTCA
CDS Sequence
- >LOC_Os01g45990.1
ATGGCGAGGTGGGGCGCCGCTCGGATGGCGGCGTGCGGGCCGTGGGGCCGCAACCGGAGGGTCGGCGCCGGCGACGCGTTCGAGGCCAGCGAGGTGAGGCGGGACGGGCGCAGCAGGATGATGCCCGCGTGCGGGCCGTGGGGGGCGGGCCATGGCGGCGGGGACCCGGCGCTCGAGAGGGAGCTGTCGCGGGACGGCAGCCACTACAGCATCTCCAGCGCCATCCTCCCGTCGCTCGGCGCGCGGAGCAACCGCCGCATCAAGCTCCGCCGCTTCATCATCTCCCCCTACGACCGCCGATACAGAATCTGGGAGACTTTCCTCATAGTTCTTGTAGTCTACTCTGCGTGGGTCTCACCATTTGAATTTGGCTTCATTCCGAAGCCTACGGGGGCTCTAGCTACAGCCGACAATGTGGTGAATGCATTCTTCGCGGTTGACATCATTCTGACCTTCTTTGTGGCTTATTTGGATAAAATGAGCTATATGCTTGAAGATGATCCAAAGAAGATCGCATGGCGTTATAGTACCACATGGCTTGTTCTTGACGTGGCCTCCACCATCCCATCAGAATTTGCTCGCAGGATACTACCTTCAAAGCTTAGGTCATATGGATTTTTCAACATGCTTCGTCTGTGGCGTCTCCGCAGAGTCAGCTCTCTGTTTTCTAGGTTGGAGAAGGATAGACACTTCAATTACTTCTGGGTTCGATGTGCAAAGCTCATTTGTGTCACACTTTTTGCTGTGCACTGTGCGGCATGCTTCTACTATCTTCTTGCTGATAGGTACCCCGTCCCAACTTCTACGTGGATTGGCAATTACATGGCAGATTTCCATGAACGGAGCTTATGGATTCGCTACGTAACATCAGTCTATTGGTCAATCACCACTCTTACCACCGTGGGCTATGGGGATCTACATGCAGAAAATACAAGGGAGATGATCTTCAACATTTTCTACATGCTCTTTAACCTTGGTTTGACCGCTTATTTGATCGGTAACATGACCAATTTGGTTGTCCATGGCACTAGTCGTACTCGAAACTATAGGGATACAATCCAAGCAGCAACAAGCTTTGGAGTAAGAAATCAGCTACCACCTCGGCTGCAAGATCAGATGATTTCACATATTAGCTTAAAATACAGGACAGATTCAGAAGGTCTTCAACAACAAGAGATCCTTGATTCACTGCCTAAAGCTATTAAATCTAGCATTTCTCAATATCTGTTCTTCCATCTGGTTCAAAATGTTTACCTGTTTCAAGGAGTCTCAAATGATCTGATTTTTCAACTGGTTTCGGAGATGAAAGCTGAATATTTTCCACCTAGGGAGGATGTGATTTTGCAGAATGAAGCACCCACTGACTTCTACATCTTAGTTTCTGGTAGTGTGGAGTTAGTAGAGCAGCAAAATGGTGCAGACCAGGTGATACAAGTGGCTACGTCAGGAGAGGTTGTTGGAGAAATTGGGGTTCTTTGCTACAGACCTCAGCTATTCACAGTTCGAACAAGATCCTTGTGCCAGTTGTTGCGTTTGAATCGTACAGCTTTTCTCAGCATTGTTCAATCCAATGTTGGGGATGGAACTATCATAATGAACAACCTTATTCAGTTCCTTAAAGAGCAGAAGGAGAACAGTGTAATGGCTGGTGTCGTAAAGGAGATAGAGAGTATGCTAGCTCGGGGAAATCTGGATTTGCCAATTACACTCTGTTTTGCAGTAACTAGAGGAGATGATTTTTTGTTGCATCAACTTCTTAAGCGTGGTATGGATCCAAATGAGTCAGATAATGACGGGCATACCGCACTGCATATAGCTGCTTCCAAAGGAAACGAGCAATGCGTCAGGCTTCTATTAGAATATGGAGCTGATCCAAATGCCAGAGACTCAGAAGGAAAAGTTCCACTGTGGGAAGCGCTGTGTGAGAAGCACGCCGCCGTCGTGCAACTATTAGTCGAAGGCGGCGCGGATCTGTCGTCGGGTGACACGGGCTTATACGCTTGCATCGCCGTGGAGGAGAGCGACACCGAGCTGCTCAACGACATCATTCACTACGGAGGCGACGTGAACAGGGCTCGCCGGGACGGGACCACCGCCCTGCACCGCGCCGTCTGCGACGGCAACGTCCAGATGGCCGAGCTCTTGCTGGAACACGGAGCCGACATCGACAAGCAGGACGGCAACGGCTGGACCCCGAGAGCCCTCGCCGAGCAGCAGGGCCACGACGACATCCAGCTCCTGTTCCGGTCGCGCAAGGCGGCGACGGCGAGTGGCCACCATCACGTCCCAAGCTCCACCACCACCAGGGTGGCGCCGGCGGCGGCGGCGGCATCACTGATCGGGAGGTTCAACAGCGAGCCCATGATGAAGAACATGATCCACGAAGACGCCGACCTGCCCAGCCGGGTTCTCCCCGAGAAGCTCCGGAGGAAGCGGGTCACCTTCCAGAACTCCCTCTTCGGGGTCATCTCGTCGTCGCAGGCGCAGCGGGAGACCGACCACCCGCTCTCGAGGGGTGGCCTCGCGGCGACGGGCTCCCCGAACCCGAGCAGCGGCAGCCGCAACGCCGTCATCAGGGTGACGATCAGCTGCCCCGAGAAAGGGAACACCGCCGGGAAGCTCGTGCTCCTGCCTCAGACGCTGGACATGCTCCTCGAGCTCGGCGCCAAGAAGTTCGACTTCGCGCCAACCAAGGTTCTCACCGTGGAGGGCGCCGAGGTTGACGAGGTGGAGCTCATCAGAGACGGCGATCATCTTGTGCTCGTCAGTAATGAATGGGATGCAGAGAAGATGAAAGGCAAGAGCTAG
Protein Sequence
- >LOC_Os01g45990.1
MARWGAARMAACGPWGRNRRVGAGDAFEASEVRRDGRSRMMPACGPWGAGHGGGDPALERELSRDGSHYSISSAILPSLGARSNRRIKLRRFIISPYDRRYRIWETFLIVLVVYSAWVSPFEFGFIPKPTGALATADNVVNAFFAVDIILTFFVAYLDKMSYMLEDDPKKIAWRYSTTWLVLDVASTIPSEFARRILPSKLRSYGFFNMLRLWRLRRVSSLFSRLEKDRHFNYFWVRCAKLICVTLFAVHCAACFYYLLADRYPVPTSTWIGNYMADFHERSLWIRYVTSVYWSITTLTTVGYGDLHAENTREMIFNIFYMLFNLGLTAYLIGNMTNLVVHGTSRTRNYRDTIQAATSFGVRNQLPPRLQDQMISHISLKYRTDSEGLQQQEILDSLPKAIKSSISQYLFFHLVQNVYLFQGVSNDLIFQLVSEMKAEYFPPREDVILQNEAPTDFYILVSGSVELVEQQNGADQVIQVATSGEVVGEIGVLCYRPQLFTVRTRSLCQLLRLNRTAFLSIVQSNVGDGTIIMNNLIQFLKEQKENSVMAGVVKEIESMLARGNLDLPITLCFAVTRGDDFLLHQLLKRGMDPNESDNDGHTALHIAASKGNEQCVRLLLEYGADPNARDSEGKVPLWEALCEKHAAVVQLLVEGGADLSSGDTGLYACIAVEESDTELLNDIIHYGGDVNRARRDGTTALHRAVCDGNVQMAELLLEHGADIDKQDGNGWTPRALAEQQGHDDIQLLFRSRKAATASGHHHVPSSTTTRVAPAAAAASLIGRFNSEPMMKNMIHEDADLPSRVLPEKLRRKRVTFQNSLFGVISSSQAQRETDHPLSRGGLAATGSPNPSSGSRNAVIRVTISCPEKGNTAGKLVLLPQTLDMLLELGAKKFDFAPTKVLTVEGAEVDEVELIRDGDHLVLVSNEWDAEKMKGKS*