title: Cloning, expression and crystallization of dihydrodipicolinate reductase from methicillin-resistant Staphylococcus aureus.
abstract: Dihydrodipicolinate reductase (DHDPR; EC 1.3.1.26) catalyzes the nucleotide (NADH/NADPH) dependent second step of the lysine-biosynthesis pathway in bacteria and plants. Here, the cloning, expression, purification, crystallization and preliminary X-ray diffraction analysis of DHDPR from methicillin-resistant Staphylococcus aureus (MRSA-DHDPR) are presented. The enzyme was crystallized in a number of forms, predominantly with ammonium sulfate as a precipitant, with the best crystal form diffracting to beyond 3.65 A resolution. Crystal structures of the apo form as well as of cofactor (NADPH) bound and inhibitor (2,6-pyridinedicarboxylate) bound forms of MRSA-DHDPR will provide insight into the structure and function of this essential enzyme and valid drug target.
authors.affiliation: Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville 3010, Victoria, Australia.
authors.forename: Sudhir
authors.initials: S
authors.lastname: Dommaraju
authors.forename: Michael A
authors.initials: MA
authors.lastname: Gorman
authors.forename: Con
authors.initials: C
authors.lastname: Dogovski
authors.forename: F Grant
authors.initials: FG
authors.lastname: Pearce
authors.forename: Juliet A
authors.initials: JA
authors.lastname: Gerrard
authors.forename: Renwick C J
authors.initials: RC
authors.lastname: Dobson
authors.forename: Michael W
authors.initials: MW
authors.lastname: Parker
authors.forename: Matthew A
authors.initials: MA
authors.lastname: Perugini
mesh_terms: D003001:Cloning, Molecular; D003460:Crystallization; D018360:Crystallography, X-Ray; D050746:Dihydrodipicolinate Reductase / Q000737:chemistry*; D055624:Methicillin-Resistant Staphylococcus aureus / Q000201:enzymology*
chemical_list: D050746:Dihydrodipicolinate Reductase