Structural characterization of Burkholderia pseudomallei adenylate kinase (Adk): profound asymmetry in the crystal structure of the 'open' state.Buchko, G.W., Robinson, H., Abendroth, J., Staker, B.L., Myler, P.J.
(2010) Biochem.Biophys.Res.Commun. 394: 1012-1017
- PubMed: 20331978
- DOI: 10.1016/j.bbrc.2010.03.112
- PubMed Abstract:
- Combining functional and structural genomics to sample the essential Burkholderia structome.
Baugh, L.,Gallagher, L.A.,Patrapuvich, R.,Clifton, M.C.,Gardberg, A.S.,Edwards, T.E.,Armour, B.,Begley, D.W.,Dieterich, S.H.,Dranow, D.M.,Abendroth, J.,Fairman, J.W.,Fox, D.,Staker, B.L.,Phan, I.,Gillespie, A.,Choi, R.,Nakazawa-Hewitt, S.,Nguyen, M.T.,Napuli, A.,Barrett, L.,Buchko, G.W.,Stacy, R.,Myler, P.J.,Stewart, L.J.,Manoil, C.,Van Voorhis, W.C.
(2013) Plos One 8: e53851
In all organisms adenylate kinases (Adks) play a vital role in cellular energy metabolism and nucleic acid synthesis. Due to differences in catalytic properties between the Adks found in prokaryotes and in the cytoplasm of eukaryotes, there is intere ...
In all organisms adenylate kinases (Adks) play a vital role in cellular energy metabolism and nucleic acid synthesis. Due to differences in catalytic properties between the Adks found in prokaryotes and in the cytoplasm of eukaryotes, there is interest in targeting this enzyme for new drug therapies against infectious bacterial agents. Here we report the 2.1A resolution crystal structure for the 220-residue Adk from Burkholderia pseudomallei (BpAdk), the etiological agent responsible for the infectious disease melioidosis. The general structure of apo BpAdk is similar to other Adk structures, composed of a CORE subdomain with peripheral ATP-binding (ATP(bd)) and LID subdomains. The two molecules in the asymmetric unit have significantly different conformations, with a backbone RMSD of 1.46 A. These two BpAdk conformations may represent 'open' Adk sub-states along the preferential pathway to the 'closed' substrate-bound state.
Biological Sciences Division and Seattle Structural Genomics Center for Infectious Disease, Pacific Northwest National Laboratory, Richland, WA 99352, USA. email@example.com