Cytochrome P450 is an enzyme involved in the detoxification process. The bacterial enzyme has been purified to homogeneity and runs as a 100 kDa protein on SDS-PAA gels. Dr. Black and co-workers have been able to obtain small three-dimensional crystals which are not sufficiently large for x-ray crystallographic analysis. Ultracentrifugation experiments have indicated an unusual axial ratio of 7:1 for this molecule. To facilitate any structural work and to verify the axial ratio, Dr. Black visited our lab to investigate the protein by electron cryo-microscopy. Preliminary images seem to support the model of an elongated shape. In addition, this water-soluble protein is known to interact with lipids, perhaps as an peripheral membrane protein. Experiments have therefore been started to crystallize the cytochrome P450 on lipid monolayers.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
3P41RR002250-17S1
Application #
6611286
Study Section
Project Start
2001-12-01
Project End
2002-11-30
Budget Start
1997-10-01
Budget End
1998-09-30
Support Year
17
Fiscal Year
2002
Total Cost
$134,676
Indirect Cost
Name
Baylor College of Medicine
Department
Type
DUNS #
074615394
City
Houston
State
TX
Country
United States
Zip Code
77030
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