rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
4
|
pubmed:dateCreated |
2002-4-23
|
pubmed:databankReference |
|
pubmed:abstractText |
Plant steroid hormones, brassinosteroids (BRs), are perceived by a cell surface receptor kinase, BRI1, but how BR binding leads to regulation of gene expression in the nucleus is unknown. Here we describe the identification of BZR1 as a nuclear component of the BR signal transduction pathway. A dominant mutation bzr1-1D suppresses BR-deficient and BR-insensitive (bri1) phenotypes and enhances feedback inhibition of BR biosynthesis. BZR1 protein accumulates in the nucleus of elongating cells of dark-grown hypocotyls and is stabilized by BR signaling and the bzr1-1D mutation. Our results demonstrate that BZR1 is a positive regulator of the BR signaling pathway that mediates both downstream BR responses and feedback regulation of BR biosynthesis.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
1534-5807
|
pubmed:author |
pubmed-author:AsamiTadaoT,
pubmed-author:ChenMengM,
pubmed-author:ChoryJoanneJ,
pubmed-author:FujiokaShozoS,
pubmed-author:GendronJoshuaJ,
pubmed-author:HeJunxianJ,
pubmed-author:NakanoTakeshiT,
pubmed-author:VafeadosDionneD,
pubmed-author:WangZhi YongZY,
pubmed-author:YangYanliY,
pubmed-author:YoshidaShigeoS
|
pubmed:issnType |
Print
|
pubmed:volume |
2
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
505-13
|
pubmed:dateRevised |
2011-11-17
|
pubmed:meshHeading |
pubmed-meshheading:11970900-Arabidopsis,
pubmed-meshheading:11970900-Arabidopsis Proteins,
pubmed-meshheading:11970900-Cell Nucleus,
pubmed-meshheading:11970900-Feedback, Physiological,
pubmed-meshheading:11970900-Gene Expression Regulation, Developmental,
pubmed-meshheading:11970900-Gene Expression Regulation, Plant,
pubmed-meshheading:11970900-Hypocotyl,
pubmed-meshheading:11970900-Molecular Sequence Data,
pubmed-meshheading:11970900-Mutation,
pubmed-meshheading:11970900-Nuclear Proteins,
pubmed-meshheading:11970900-Phenotype,
pubmed-meshheading:11970900-Plant Cells,
pubmed-meshheading:11970900-Plants,
pubmed-meshheading:11970900-Sequence Homology, Amino Acid,
pubmed-meshheading:11970900-Steroids
|
pubmed:year |
2002
|
pubmed:articleTitle |
Nuclear-localized BZR1 mediates brassinosteroid-induced growth and feedback suppression of brassinosteroid biosynthesis.
|
pubmed:affiliation |
Howard Hughes Medical Institute and Plant Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
|