SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development.

SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development. Abstract Text:

Sourav Datta,Chamari Hettiarachchi,Henrik Johansson,Magnus Holm,Sourav Datta,Chamari Hettiarachchi,Henrik Johansson,Magnus Holm,

CONSTITUTIVELY PHOTOMORPHOGENIC1 (COP1) and ELONGATED HYPOCOTYL5 (HY5) are two major regulators of light signaling in plants. Here, we identify SALT TOLERANCE HOMOLOG2 (STH2) as a gene that interacts genetically with both of these key regulators. STH2 encodes a B-box-containing protein that interacts physically with HY5 in yeast and in plant cells. Whereas STH2 is uniformly nuclear by itself, it shows a COP1-dependent localization to speckles when coexpressed with COP1. We identified two independent T-DNA insertion lines in STH2. Both alleles are hyposensitive to blue, red, and far-red light. The sth2 mutant, like hy5, shows an enhanced number of lateral roots and accumulates less anthocyanin. Analysis of double mutants between sth2 and hy5 indicates that STH2 has both HY5-dependent and -independent functions. Furthermore, besides partially suppressing the hypocotyl phenotype of dark-grown cop1 alleles, sth2 also suppresses the reduced number of lateral roots and high anthocyanin levels in light-grown cop1 alleles. Interestingly, we found that STH2 can activate transcription. Transient transfection assays in protoplasts using a LUC reporter driven by the chalcone isomerase promoter show that the B-boxes in STH2 and a functional G-box element in the promoter are required for this activity. In conclusion, we have identified STH2, a B-box protein in Arabidopsis thaliana, as a positive regulator of photomorphogenesis and report that the B-box domain plays a direct role in activating transcription in plants.

SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development. Publishing Authors By Initials

S Datta,C Hettiarachchi,H Johansson,M Holm,S Datta,C Hettiarachchi,H Johansson,M Holm,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: The Plant cell

VOLUME: 19

Page Numbers: 3242-55

Journal Abbreviation: Plant Cell

ISSN: 1040-4651

DAY: 26

MONTH: 10

YEAR: 2007

SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9208688

SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development.

AFFILIATION: Department of Cell and Molecular Biology, Gothenburg University, 405 30 Gothenburg, Sweden.

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Plant Cell

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development Related Publications

• A beautiful mind.
• Abdominal ultrasound angiography.
• Amidolytic heparin assay (Coatest heparin) and correlation to clinical effects in heparin treatment of deep venous thrombosis (DVT).
• COMPARATIVE STUDIES OF THE PLASMA PROTEINS, ON PERORAL, INTRAVENOUS, INTRAPORTAL AND ENTERAL ADMINISTRATION OF CASEIN HYDROLYSATE. PRELIMINARY REPORT.
• Can politics be taken out of the (English) NHS?
• Contextual learning to improve health care and patient safety.
• Edge-bridged Mo2Fe6S8 to pN-type Mo2Fe6S9 cluster conversion: structural fate of the attacking sulfide/selenide nucleophile.
• Endarterectomy vs prosthetic grafting.
• Euthanasia in intensive care: some unresolved issues.
• Hydroxide-promoted core conversions of molybdenum-iron-sulfur edge-bridged double cubanes: oxygen-ligated topological PN clusters.
• ICMMM2D: an accurate method to include planar dielectric interfaces via image charge summation.
• Irradiation of foot and mouth disease virus with ultra-violet rays.
• Lymphocyte and granulocyte function in nutritionally depleted patients. The effect of 2 weeks of total parenteral nutrition.
• PairsDB atlas of protein sequence space.
• Preovulatory plasma estradiol-17beta concentrations and ovulation rates in PMSG/anti-PMSG treated heifers.
• Rearrangement of symmetrical dicubane clusters into topological analogues of the P cluster of nitrogenase: nature's choice?
• SALT TOLERANCE HOMOLOG2, a B-box protein in Arabidopsis that activates transcription and positively regulates light-mediated development.
• Silylation, Sulfidation, and Benzene-1,2-dithiolate Complexation Reactions of Oxo- and Oxosulfidomolybdates(VI) and -Tungstates(VI).
• Stabilization of reduced molybdenum-iron-sulfur single- and double-cubane clusters by cyanide ligation.
• Sulfur ligand substitution at the nickel(II) sites of cubane-type and cubanoid NiFe3S4 clusters relevant to the C-clusters of carbon monoxide dehydrogenase.
• The effects of regular strength training on telomere length in human skeletal muscle.
• The expressivist objection to prenatal diagnosis: can it be laid to rest?
• The history of medicine in South Dakota: some elements of frontier medicine haven't changed.
• The optimal P3M algorithm for computing electrostatic energies in periodic systems.
• Thick as thieves the Norwegian medical association attempts to stifle ethical debate.
• We could not have done it without your help.
• Wound and graft infection. Clinical aspects and prophylaxis.
• [Not Available.]
• [Not Available.]
• eNOS involved in colitis-induced mucosal blood flow increase.