HOS1

Summary

Gene Symbol: HOS1
Description: ubiquitin-protein ligase
Alias: EARLY IN SHORT DAYS 6, ESD6, HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES 1, T5I7.11, T5I7_11, ubiquitin-protein ligase
Species: thale cress

Top Publications

  1. Kim J, Lee H, Jung J, Lee S, Park C. HOS1 Facilitates the Phytochrome B-Mediated Inhibition of PIF4 Function during Hypocotyl Growth in Arabidopsis. Mol Plant. 2017;10:274-284 pubmed publisher
    ..Here, we demonstrated that HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES 1 (HOS1), which is known to either act as E3 ubiquitin ligase or affect chromatin ..
  2. Kim Y, Lee M, Lee J, Lee H, Park C. The unified ICE-CBF pathway provides a transcriptional feedback control of freezing tolerance during cold acclimation in Arabidopsis. Plant Mol Biol. 2015;89:187-201 pubmed publisher
    ..ICE2, like ICE1, was ubiquitinated by the high expression of osmotically responsive gene 1 (HOS1) E3 ubiquitin ligase...
  3. Lee J, Kim S, Kim J, Ahn J. Alternative splicing and expression analysis of High expression of osmotically responsive genes1 (HOS1) in Arabidopsis. BMB Rep. 2012;45:515-20 pubmed
    High expression of osmotically responsive genes1 (HOS1), a key regulator of low temperature response and flowering time, encodes an E3 ubiquitin ligase in Arabidopsis...
  4. Jung J, Park C. HOS1-mediated activation of FLC via chromatin remodeling under cold stress. Plant Signal Behav. 2013;8:e27342 pubmed publisher
    The Arabidopsis E3 ubiquitin ligase HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE 1 (HOS1) has been shown to act as a negative regulator of cold responses by degrading the INDUCER OF CBF EXPRESSION 1 (ICE1) transcription factor through ..
  5. Kim J, Lee H, Park C. HOS1 acts as a key modulator of hypocotyl photomorphogenesis. Plant Signal Behav. 2017;12:e1315497 pubmed publisher
    ..We recently demonstrated that HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES 1 (HOS1) facilitates the phyB-mediated suppression of PIF4 during the light period to achieve ..
  6. Lazaro A, Valverde F, Piñeiro M, Jarillo J. The Arabidopsis E3 ubiquitin ligase HOS1 negatively regulates CONSTANS abundance in the photoperiodic control of flowering. Plant Cell. 2012;24:982-99 pubmed publisher
    ..showed that the esd6 phenotype is caused by a lesion in the high expression of osmotically responsive genes1 (HOS1) locus, which encodes a RING finger-containing E3 ubiquitin ligase...
  7. Lee J, Kim J, Kim S, Cho H, Kim J, Ahn J. The E3 ubiquitin ligase HOS1 regulates low ambient temperature-responsive flowering in Arabidopsis thaliana. Plant Cell Physiol. 2012;53:1802-14 pubmed publisher
    ..Here, we show that HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES 1 (HOS1), which encodes an E3 ubiquitin ligase, controls flowering time in response to ambient ..
  8. Jung J, Seo P, Park C. The E3 ubiquitin ligase HOS1 regulates Arabidopsis flowering by mediating CONSTANS degradation under cold stress. J Biol Chem. 2012;287:43277-87 pubmed publisher
    ..pathway that involves the E3 ubiquitin ligase HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE 1 (HOS1). HOS1-mediated CO degradation occurs independently of the well established cold response pathways...
  9. Wang B, Duan C, Wang X, Hou Y, Yan J, Gao C, et al. HOS1 regulates Argonaute1 by promoting transcription of the microRNA gene MIR168b in Arabidopsis. Plant J. 2015;81:861-70 pubmed publisher
    ..Here we report that High Expression Of Osmotically Responsive Genes1 (HOS1) is a regulator of an important miRNA, mi168a/b, that targets the Argonaute1 (AGO1) gene in Arabidopsis...

More Information

Publications17

  1. Macgregor D, Gould P, Foreman J, Griffiths J, Bird S, Page R, et al. HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES1 is required for circadian periodicity through the promotion of nucleo-cytoplasmic mRNA export in Arabidopsis. Plant Cell. 2013;25:4391-404 pubmed publisher
    ..the INDUCER OF CBF EXPRESSION1 protein by the E3 ubiquitin ligase HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES1 (HOS1)...
  2. Viswanathan C, Zhu J. Molecular genetic analysis of cold-regulated gene transcription. Philos Trans R Soc Lond B Biol Sci. 2002;357:877-86 pubmed
    ..We have also identified the hos1 mutation, which showed super induction of cold-responsive genes and their transcriptional activators...
  3. Miura K, Jin J, Lee J, Yoo C, Stirm V, Miura T, et al. SIZ1-mediated sumoylation of ICE1 controls CBF3/DREB1A expression and freezing tolerance in Arabidopsis. Plant Cell. 2007;19:1403-14 pubmed
    ..SIZ1-dependent sumoylation of ICE1 may activate and/or stabilize the protein, facilitating expression of CBF3/DREB1A and repression of MYB15, leading to low temperature tolerance...
  4. Dong C, Agarwal M, Zhang Y, Xie Q, Zhu J. The negative regulator of plant cold responses, HOS1, is a RING E3 ligase that mediates the ubiquitination and degradation of ICE1. Proc Natl Acad Sci U S A. 2006;103:8281-6 pubmed
    ..We present evidence here that HOS1 is an E3 ligase required for the ubiquitination of ICE1...
  5. Lee H, Xiong L, Gong Z, Ishitani M, Stevenson B, Zhu J. The Arabidopsis HOS1 gene negatively regulates cold signal transduction and encodes a RING finger protein that displays cold-regulated nucleo--cytoplasmic partitioning. Genes Dev. 2001;15:912-24 pubmed
    ..In Arabidopsis thaliana, the HOS1 locus is a key negative regulator of low temperature-responsive gene transcription...
  6. Jung J, Park J, Lee S, To T, Kim J, Seki M, et al. The cold signaling attenuator HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE1 activates FLOWERING LOCUS C transcription via chromatin remodeling under short-term cold stress in Arabidopsis. Plant Cell. 2013;25:4378-90 pubmed publisher
    ..The cold signaling attenuator HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE1 (HOS1) negatively regulates cold responses...
  7. Ding Y, Li H, Zhang X, Xie Q, Gong Z, Yang S. OST1 kinase modulates freezing tolerance by enhancing ICE1 stability in Arabidopsis. Dev Cell. 2015;32:278-89 pubmed publisher
    ..Moreover, OST1 interacts with both the transcription factor ICE1 and the E3 ligase HOS1 in the CBF pathway. Cold-activated OST1 phosphorylates ICE1 and enhances its stability and transcriptional activity...
  8. Lazaro A, Mouriz A, Piñeiro M, Jarillo J. Red Light-Mediated Degradation of CONSTANS by the E3 Ubiquitin Ligase HOS1 Regulates Photoperiodic Flowering in Arabidopsis. Plant Cell. 2015;27:2437-54 pubmed publisher
    ..We previously showed that the E3 ubiquitin ligase HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENES1 (HOS1) physically interacts with CO in Arabidopsis...