This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. Nerve growth factor (NGF) is a signaling molecule, originally discovered for its role on differentiation and survival of peripheral sensory and sympathetic neurons. The activation of the receptor tyrosine kinase, TrkA, by the NGF leads to the phosphorylation of several tyrosines in the intracellular part of the receptor. Two phosphotyrosines located at 490 and 785 create docking sites for adaptator or effector proteins which stimulate several signaling pathways. My research interest is focused in characterizing the phosphoproteome specifically activated by these 2 phosphotyrosines by using mutant receptors. Moreover, the use of a chimeric receptor (extracellular part of the PDGF receptor/intracellular part of TrkA) allows the identification of the signaling pathways specific of TrkA and not of p75NTR. I am also interested in characterizing the direct substrates of the tyrosine kinase domain of TrkA. The kinase engineered to use synthetic ATP analogs specifically thiophosphorylates its substrates. This thiophosphorylation modification provides a tag that can be used to affinity purify and identify labeled proteins. This project will further understanding of the function of the NGF receptor in neurons.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR001614-29
Application #
8363821
Study Section
Special Emphasis Panel (ZRG1-BCMB-M (40))
Project Start
2011-06-01
Project End
2012-05-31
Budget Start
2011-06-01
Budget End
2012-05-31
Support Year
29
Fiscal Year
2011
Total Cost
$39,892
Indirect Cost
Name
University of California San Francisco
Department
Pharmacology
Type
Schools of Pharmacy
DUNS #
094878337
City
San Francisco
State
CA
Country
United States
Zip Code
94143
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