Electron Flow in Photosynthetic Bacteria
{'Code': '08070400', 'Directorate': {'Abbreviation': 'BIO', 'LongName': 'Direct For Biological Sciences'}, 'Division': {'Abbreviation': 'MCB', 'LongName': 'Div Of Molecular and Cellular Bioscience'}}
{'SignBlockName': 'Kamal Shukla', 'PO_EMAI': None, 'PO_PHON': None}
The specific objectives of this project are (1) to                              characterizethe cytochrome bc1 complex of a photosynthetic                      purple non-sulfur bacterium by resonance Raman spectroscopy                     and to characterize the binding sites on the complex for                        quinone, cytochrome c2 and the inhibitor antimycin A and (2)                    to compare the cytochrome bc1 complex and its soluble                           cytochrome c electron acceptor in apurple sulfur bacterium                      with those of purple non-sulfur bacteria. Also to compare the                   spectroscopic properties of these cytochrome bc1 complexes                      with the functionally analogous chloroplast cytochrome b6f                      complex.                                                                                                                                                        Emphasis is placed on unique aspects of bioenergetics in                        these bacteria or on the simplicity of processes in these                       bacteria compared to the analogous one in mitochondrial                         respiration.  A number of spectroscopic (e.g., resonance                        Raman and electron paramagnetic resonance spectroscopy),                        biochemical (e.g., chemical modification of specific amino                      acids and photoaffinity labeling) and genetic techniques will                   be utilized in an attempt to provide details at the molecular                   level about these electron transfer reactions that are                          central to energy transduction in photosynthetic bacteria.                      %%%                                                                             The energy needed for cell metabolism is generated                              through several different mechanisms.  In this study,                           electron transport linked to an electrochemical gradient will                   be studied in a photosynthetic bacterium.  This is a                            convenient experimental system because electron transfer can                    be started and stopped by turning light on or off.
{'FirstName': 'David', 'LastName': 'Knaff', 'PI_MID_INIT': 'B', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'David B Knaff', 'EmailAddress': 'david.knaff@ttu.edu', 'NSF_ID': '000171199', 'StartDate': '07/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Texas Tech University', 'CityName': 'LUBBOCK', 'ZipCode': '79409', 'PhoneNumber': '8067423884', 'StreetAddress': '2500 BROADWAY', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Texas', 'StateCode': 'TX', 'CONGRESSDISTRICT': '19', 'CONGRESS_DISTRICT_ORG': 'TX19', 'ORG_UEI_NUM': 'EGLKRQ5JBCZ7', 'ORG_LGL_BUS_NAME': 'TEXAS TECH UNIVERSITY SYSTEM', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '114400', 'Text': 'Molecular Biophysics'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8806609.xml'}