Fluorescent pteridine-based nucleoside analogs that can be site- specifically incorporated into DNA oligonucleotides through a phosphodiester linkage have been developed and patented. The fluorescence properties of a series of these compounds have been characterized and potential applications are being investigated. These new fluorophores are promising probes for the study of protein/DNA interactions, because they are not attached to DNA externally and they do not appear to disrupt the tertiary structure of DNA. Rapid fluorescence-based assays for HIV-1 integrase and alkylguanine-DNA- akyltransferase have been developed, and the utility of these fluorophores as hybridization probes has been patented and is under investigation. A number of collaborative studies investigating the potential applications of these new research tools are also underway. - DNA repair, Fluorescent probes, Integrase, Nucleoside analogs, - Human Tissues, Fluids, Cells, etc.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Intramural Research (Z01)
Project #
1Z01SC010090-03
Application #
6290844
Study Section
Special Emphasis Panel (POB)
Project Start
Project End
Budget Start
Budget End
Support Year
3
Fiscal Year
1999
Total Cost
Indirect Cost
Name
National Cancer Institute Division of Clinical Sciences
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Hawkins, Mary E (2007) Synthesis, purification and sample experiment for fluorescent pteridine-containing DNA: tools for studying DNA interactive systems. Nat Protoc 2:1013-21
Turingan, Rosemary S; Liu, Cuihua; Hawkins, Mary E et al. (2007) Structural confirmation of a bent and open model for the initiation complex of T7 RNA polymerase. Biochemistry 46:1714-23
Hawkins, Mary E; Balis, Frank M (2004) Use of pteridine nucleoside analogs as hybridization probes. Nucleic Acids Res 32:e62