Abstract

We have initiated NMR structural studies on the Bcr Dbl Homology domain. This 23 kD protein domain shows homology to guanine nucleotide exchange factor domains found in Rho family GTPases. These domains activate Rho family GTPases by facilitating GDP dissociation. In vivo, this leads to population of Rho GTPases in their biologically active state where they tranduce signals through multiple signaling pathways leading to diverse biological processes such as changes in cell morphology, cell proliferation and programmed cell death. The functional properties of the Dbl homology domain contained in Bcr have not been well characterized. Therefore, we have initiated NMR structural, biochemical and cell biology studies to better understand the molecular basis of Bcr DH domain function in the cell. We have collected a series of triple resonance data at CMR during a time when our spectrometer at UNC was being upgraded.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR000995-27
Application #
6578202
Study Section
Project Start
2002-05-01
Project End
2003-04-30
Budget Start
Budget End
Support Year
27
Fiscal Year
2002
Total Cost
Indirect Cost

  Institution

Name
Massachusetts Institute of Technology
Department
Type
DUNS #
City
Cambridge
State
MA
Country
United States
Zip Code
02139

  Publications

Marintchev, Assen; Edmonds, Katherine A; Marintcheva, Boriana et al. (2009) Topology and regulation of the human eIF4A/4G/4H helicase complex in translation initiation. Cell 136:447-60
Frueh, Dominique P; Arthanari, Haribabu; Koglin, Alexander et al. (2009) A double TROSY hNCAnH experiment for efficient assignment of large and challenging proteins. J Am Chem Soc 131:12880-1
Frueh, Dominique P; Leed, Alison; Arthanari, Haribabu et al. (2009) Time-shared HSQC-NOESY for accurate distance constraints measured at high-field in (15)N-(13)C-ILV methyl labeled proteins. J Biomol NMR 45:311-8
Lentz, Margaret R; Westmoreland, Susan V; Lee, Vallent et al. (2008) Metabolic markers of neuronal injury correlate with SIV CNS disease severity and inoculum in the macaque model of neuroAIDS. Magn Reson Med 59:475-84
Hyberts, Sven G; Heffron, Gregory J; Tarragona, Nestor G et al. (2007) Ultrahigh-resolution (1)H-(13)C HSQC spectra of metabolite mixtures using nonlinear sampling and forward maximum entropy reconstruction. J Am Chem Soc 129:5108-16
Chen, Jingyang; Dupradeau, Francois-Yves; Case, David A et al. (2007) Nuclear magnetic resonance structural studies and molecular modeling of duplex DNA containing normal and 4'-oxidized abasic sites. Biochemistry 46:3096-107
Lentz, Margaret R; Kim, John P; Westmoreland, Susan V et al. (2005) Quantitative neuropathologic correlates of changes in ratio of N-acetylaspartate to creatine in macaque brain. Radiology 235:461-8
Kim, John P; Lentz, Margaret R; Westmoreland, Susan V et al. (2005) Relationships between astrogliosis and 1H MR spectroscopic measures of brain choline/creatine and myo-inositol/creatine in a primate model. AJNR Am J Neuroradiol 26:752-9
Mo, H; Dai, Y; Pochapsky, S S et al. (1999) 1H, 13C and 15N NMR assignments for a carbon monoxide generating metalloenzyme from Klebsiella pneumoniae. J Biomol NMR 14:287-8
Mo, H; Pochapsky, S S; Pochapsky, T C (1999) A model for the solution structure of oxidized terpredoxin, a Fe2S2 ferredoxin from Pseudomonas. Biochemistry 38:5666-75

Showing the most recent 10 out of 12 publications