This proposal will extend the knowledge of the solution structure of a large protein tyrosine kinase, Abelson and its complexes in intracellular signal transduction, using both established NMR and molecular biology approaches and new technologies. These new technologies include those developed by the PI such as, segmental labeling using expressed protein ligation, domain structures with consolidated ligands and direct determination of segmental motion of multidomain proteins from relaxation studies. A long-term objective is to understand the molecular basis of the action of Abl, which in connection with a chromosomal translocation is the causative agent in chronic myologeneous leukemia. Abl is also prototypical of many signaling molecules in that it consists of multiple functional modules, some of which are independently folded structural domains, and these interact both among themselves, and with other ligands. In this proposal, the focus is on the DNA binding domain, the interaction of tyrosine kinase control with other ligands, substrates, and the adjacent SH2 and SH3 domains, and comparison systems for the letter, including Csk and Lck, simpler protein tyrosine kinases, which are now more practical for complete structural and dynamic characterization. There are three structural biology aims and three methodology aims: 1) to investigate the structure of the DNA binding domain of Abl, to determine the structural basis of selectivity. 2) To investigate the interdomain interactions of Src Homology kinase, SH2 and SH3 domains in Abl, and in related PTKs CSK, Hck, Lck and their mechanism of control of enzymatic activity. 3) To investigate the apoptosis-related structural biology of possible Abl downstream effectors, specifically Bid, its truncated forms, and BH3-helix mimics. 4) Segmental labeling of target proteins for rapid structure and dynamics determination. 5) Orientation dependent characterization of structure and dynamics from relaxation, and residual dipolar coupling. 6) Obtain highly accurate structures and dynamics of ligated domains and multidomain constructs using improved NMR methods and ligands, with a long-term view to improving the process of developing investigational and therapeutic agents.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Research Project (R01)
Project #
2R01GM047021-08
Application #
6012158
Study Section
Biophysical Chemistry Study Section (BBCB)
Program Officer
Shen, Grace L
Project Start
1992-02-01
Project End
2003-06-30
Budget Start
1999-07-01
Budget End
2000-06-30
Support Year
8
Fiscal Year
1999
Total Cost
Indirect Cost
Name
Rockefeller University
Department
Biochemistry
Type
Other Domestic Higher Education
DUNS #
071037113
City
New York
State
NY
Country
United States
Zip Code
10065
Liu, Dongsheng; Yuan, Ya; Xu, Rong et al. (2017) Domain interactions of C-terminal Src Kinase determined through NMR spectroscopy with segmental isotope labeling. Protein Cell 8:67-71
Ferrage, Fabien; Dutta, Kaushik; Cowburn, David (2015) Identification of Hydrophobic Interfaces in Protein-Ligand Complexes by Selective Saturation Transfer NMR Spectroscopy. Molecules 20:21992-9
Bhattacharya, Shibani; Ju, Jeong Ho; Orlova, Natalia et al. (2013) Ligand-induced dynamic changes in extended PDZ domains from NHERF1. J Mol Biol 425:2509-28
Xu, Rong; Liu, Dongsheng; Cowburn, David (2012) Abl kinase constructs expressed in bacteria: facilitation of structural and functional studies including segmental labeling by expressed protein ligation. Mol Biosyst 8:1878-85
Kalinina, Juliya; Dutta, Kaushik; Ilghari, Dariush et al. (2012) The alternatively spliced acid box region plays a key role in FGF receptor autoinhibition. Structure 20:77-88
Piserchio, Andrea; Cowburn, David; Ghose, Ranajeet (2012) Expression and purification of Src-family kinases for solution NMR studies. Methods Mol Biol 831:111-31
Bhattacharya, Shibani; Zhang, Hongtao; Cowburn, David et al. (2012) Novel structures of self-associating stapled peptides. Biopolymers 97:253-64
Zhang, Hongtao; Curreli, Francesca; Zhang, Xihui et al. (2011) Antiviral activity of ?-helical stapled peptides designed from the HIV-1 capsid dimerization domain. Retrovirology 8:28
Ferrage, Fabien; Reichel, Amy; Battacharya, Shibani et al. (2010) On the measurement of ¹?N-{¹H} nuclear Overhauser effects. 2. Effects of the saturation scheme and water signal suppression. J Magn Reson 207:294-303
Tait, Shirley; Dutta, Kaushik; Cowburn, David et al. (2010) Local control of a disorder-order transition in 4E-BP1 underpins regulation of translation via eIF4E. Proc Natl Acad Sci U S A 107:17627-32

Showing the most recent 10 out of 58 publications