Os03g0717700

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The rice Os03g0717700 was reported as OsHk4 in 2012 [1] by researchers from Korea.

Annotated Information

Gene Symbol

  • Os03g0717700 <=> OsHk4,HK4',Ohk4,HISTIDINE KINASE 4

Function

  • OsHk4 and OsHk6 mediated the canonical two-component signaling cascade of Arabidopsis to induce phosphorylation of ARR2.
  • The action mechanism of OsHks is evolutionarily diverged from bacterial histidine kinases.
  • OsHks are homomeric cytokinin receptors with distinctive cytokinin preferences in rice.

Expression

  • OsHk4 and OsHk6 were highly expressed in spike- lets, suggesting that tZ and iP might play key roles in grain development.

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Labs working on this gene

  • Department of Life Sciences and Functional Genomics Center, Pohang University of Science and Technology, Pohang 790-784,
  • Korea Crop Biotech Institute, Kyung Hee University, Youngin 446-701, Korea
  • Department of Plant Molecular Systems Biotechnology, Kyung Hee University, Youngin 446-701, Korea

References

  1. Choi J, Lee J, Kim K, Cho M, Ryu H, An G, Hwang I. Functional identification of OsHk6 as a homotypic cytokinin receptor in rice with preferential affinity for iP. Plant Cell Physiol. 2012 Jul;53(7):1334-43. doi: 10.1093/pcp/pcs079. PubMed PMID: 22642989.

Structured Information