Crystallographic and molecular dynamics simulation analysis of Escherichia coli dihydroneopterin aldolase.
Blaszczyk, J., Lu, Z., Li, Y., Yan, H., Ji, X.(2014) Cell Biosci 4: 52-52
- PubMed: 25264482 
- DOI: https://doi.org/10.1186/2045-3701-4-52
- Primary Citation of Related Structures:  
2O90 - PubMed Abstract: 
Dihydroneopterin aldolase (DHNA) catalyzes the conversion of 7,8-dihydroneopterin to 6-hydroxymethyl-7,8-dihydropterin and also the epimerization of DHNP to 7,8-dihydromonapterin. Previously, we determined the crystal structure of Staphylococcus aureus DHNA (SaDHNA) in complex with the substrate analogue neopterin (NP). We also showed that Escherichia coli DHNA (EcDHNA) and SaDHNA have significantly different binding and catalytic properties by biochemical analysis. On the basis of these structural and functional data, we proposed a catalytic mechanism involving two proton wires.
Organizational Affiliation: 
Macromolecular Crystallography Laboratory, National Cancer Institute, Frederick, MD 21702 USA ; Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824 USA ; Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.