Separation and analysis of restriction fragments by gel electrophoresis and Southern blotting are vital to the mapping of chromosomal DNA. At present, however, the information obtained from gels and blots is severely limited by the nonlinear response, limited dynamic range, low sensitivity and cumbersome processing inherent in the photographic methods used to record the distribution of fluorophore-stained or radionuclide-labeled DNA. This project will exploit recent advances in electronic imaging and computer technology that make possible accurate and rapid quantitation of the mass distribution of fluorophore-stained restriction fragments on gels and radionuclide-labeled probes on Southern blots. Computer programs for the storage and analysis of images of gels and blots will be developed to increase significantly the quality and quantity of information obtained while reducing the time required for data collection and processing.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Research Project (R01)
Project #
5R01GM040936-02
Application #
3298887
Study Section
(SSS)
Project Start
1988-09-28
Project End
1993-08-31
Budget Start
1989-09-01
Budget End
1990-08-31
Support Year
2
Fiscal Year
1989
Total Cost
Indirect Cost
Name
Associated University-Brookhaven National Lab
Department
Type
DUNS #
City
Upton
State
NY
Country
United States
Zip Code
11973
Sutherland, J C; Chen, C Z; Emrick, A et al. (1990) Lesion measurement in non-radioactive DNA by quantitative gel electrophoresis. Basic Life Sci 53:45-61
Sutherland, B M; Hacham, H; Gange, R W et al. (1990) DNA damage and repair in human skin: pathways and questions. Basic Life Sci 53:149-60
Freeman, S E; Hacham, H; Gange, R W et al. (1989) Wavelength dependence of pyrimidine dimer formation in DNA of human skin irradiated in situ with ultraviolet light. Proc Natl Acad Sci U S A 86:5605-9
Sutherland, J C; Emrick, A B; Trunk, J (1989) Separation of chromosomal length DNA molecules: pneumatic apparatus for rotating gels during electrophoresis. Electrophoresis 10:315-7