EC Number   |
General Information |
Reference |
|---|
  1.5.1.B8 | metabolism |
opine dehydrogenases (ODHs) from the bacterial pathogens, e.g. Staphylococcus aureus, Pseudomonas aeruginosa, and Yersinia pestis, perform the final enzymatic step in the biosynthesis of the class of opine metallophores, which includes staphylopine, pseudopaline, and yersinopine, respectively. Comparison of structure-function relationships, overview |
748236 |
| 1.5.1.B8 | more |
structure-function analysis, stereochemic reaction, overview. Active site structure involving Asp153 and substrate binding analysis. The histidine is positioned to act as a general acid/general base deprotonating the nucleophile and then donating the proton back to the 2-carbon hydroxyl leading to water release and Schiff base formation. HisNA is oriented with the imidazole moiety deep in the active site to confer stereoselectivity. This places the primary amine of the amino butyrate proximal to the plane between the hydride and His242, positioning the substrate for nucleophilic attack. The nicotinamide ring hydride is 8.5 A distant from the histidine proton, too far for catalysis, further supporting the necessity of domain closure |
748236 |
| 1.5.1.B8 | physiological function |
opine dehydrogenases (ODHs) from the bacterial pathogens, e.g. Staphylococcus aureus, Pseudomonas aeruginosa, and Yersinia pestis, perform the final enzymatic step in the biosynthesis of the class of opine metallophores, which includes staphylopine, pseudopaline, and yersinopine, respectively. Important role for this pathway in metal acquisition and virulence |
748236 |
