(Verbatim from the application): The objective of this application is to understand the role of a CHD protein in determination of developmental identity in Arabidopsis thaliana. CHD proteins have been implicated as chromatin remodeling factors are found in many diverse organisms ranging from yeast to man. In Arabidopsis thaliana, the pkl mutation is defective in the gibberellin signal transduction pathway and in the developmental transition form embryo to seedling. PKL has been cloned and codes for a CHD family member. We are interested in understanding the role of this CHD protein in regulation of developmental identity and GA signal transduction. To identify possible mechanisms by which PKL is regulated, expression of PKL transcript and protein will be characterized. Genes will be identified that are directly regulated by PKL and therefore potentially involved in regulation of developmental identity and GA signal transduction. Proteins that interact with PKL will be identified by two-hybrid analysis and affinity chromatography in an attempt to identify potential co-factors that may regulate PKL activity. Additional factors that are involved in regulation of developmental identity, gibberellin signal transduction, and/or chromatin remodeling may be identified based on a genetic screen. By carrying out these experimental aims, it is hoped that a greater understanding will be achieved of the role of CHD proteins in regulation of development in plants and perhaps all eukaryotes.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Research Project (R01)
Project #
5R01GM059770-04
Application #
6636331
Study Section
Cell Development and Function Integrated Review Group (CDF)
Program Officer
Anderson, James J
Project Start
2000-04-01
Project End
2005-03-31
Budget Start
2003-04-01
Budget End
2004-03-31
Support Year
4
Fiscal Year
2003
Total Cost
$265,412
Indirect Cost
Name
Purdue University
Department
Biochemistry
Type
Schools of Earth Sciences/Natur
DUNS #
072051394
City
West Lafayette
State
IN
Country
United States
Zip Code
47907
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