There methods will be used in order to evaluate the kinetics of nucleation and growth of polymers of sickle cell deoxy hemoglobin. First, growth will be monitored by adding a well-characterized seed preparation to a supersaturated monomer solution. Secondly, growth asymmetry will be measured by electron microscopy, using seeds which have been """"""""decorated"""""""" with haptoglobin. Finally, a double temperature jump method will be used to ascertain the rate parameters and stoichiometry of nucleation. The proposed development and testing of methods to quantitate the kinetics of gelation of sickle cell hemoglobin may enable clinical researchers to follow and assya in vitro the specific effects of drugs designed to slow the polymerization process.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Project (R01)
Project #
5R01HL012256-20
Application #
3334458
Study Section
Biophysics and Biophysical Chemistry A Study Section (BBCA)
Project Start
1983-06-01
Project End
1986-05-31
Budget Start
1985-06-01
Budget End
1986-05-31
Support Year
20
Fiscal Year
1985
Total Cost
Indirect Cost
Name
Georgetown University
Department
Type
Schools of Arts and Sciences
DUNS #
049515844
City
Washington
State
DC
Country
United States
Zip Code
20057
Wei, Wen-Hua; Loh, Chia-Yin; Worthington, Jane et al. (2016) Immunochip Analyses of Epistasis in Rheumatoid Arthritis Confirm Multiple Interactions within MHC and Suggest Novel Non-MHC Epistatic Signals. J Rheumatol 43:839-45
Richman, I B; Chung, S A; Taylor, K E et al. (2010) European population substructure correlates with systemic lupus erythematosus endophenotypes in North Americans of European descent. Genes Immun 11:515-21
Gregersen, Peter K; Olsson, Lina M (2009) Recent advances in the genetics of autoimmune disease. Annu Rev Immunol 27:363-91