Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 127, Issue 40, Pages 14080-14084Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja054192f
Keywords
-
Categories
Funding
- NCI NIH HHS [CA-13148] Funding Source: Medline
Ask authors/readers for more resources
Dihydrofolate reductase (DHFR) is a pharmacologically important intracellular target enzyme for folate antagonists, including the antibacterial agent trimethoprim (TMP). The structures of DHFR from various sources with and without the bound ligands have been determined by X-ray crystallography and solution NMR spectroscopy. However, there is no crystal or solution NMR structure for the bovine DHFR/TMP complex. Here we report the solution structure of TMP within the binding pocket of bovine DHFR using a novel method developed in our laboratory, viz., STD-NMR intensity-restrained CORCEMA-ST optimization (SICO) utilizing experimental STD data on this complex, and demonstrate that its solution structure is essentially identical to the one in the crystal structure of the homologous chicken liver DHFR/TMP complex. The excellent agreement we obtain between the experimental and predicted STDs also serves as a validation of the CORCEMA-ST methodology.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available