The structure of the Escherichia coli nucleoside diphosphate kinase reveals a new quaternary architecture for this enzyme familyMoynie, L., Giraud, M.-F., Georgescauld, F., Lascu, I., Dautant, A.
(2007) Proteins 67: 755-765
- PubMed: 17330300
- DOI: 10.1002/prot.21316
- Also Cited By: 3ZTS, 3ZTR, 3ZTQ, 3ZTP, 3ZTO
- PubMed Abstract:
- Crystal structure of Myxococcus xanthus nucleoside diphosphate kinase and its interaction with a nucleotide substrate at 2.0 A resolution
Williams, R.L.,Oren, D.A.,Inouye, S.,Inouye, M.,Arnold, E.
(1993) J.Mol.Biol. 234: 1230
- Refined X-ray structure of Dictyostelium discoideum nucleoside diphosphate kinase at 1.8 A resolution.
LeBras, G.,Lascu, I.,Lacombe, M.L.,Janin, J.
(1994) J.Mol.Biol. 243: 873
- Nucleoside diphosphate kinase from Escherichia coli
Almaula, N.,Lu, Q.,Delgado, J.,Belkin, S.,Inouye, M.
(1995) J.Bacteriol. 177: 2524
Nucleoside diphosphate kinase (NDPK) catalyzes the transfer of gamma-phosphate from nucleoside triphosphates to nucleoside diphosphates. The subunit folding and the dimeric basic structural unit are remarkably the same for available structures but, d ...
Nucleoside diphosphate kinase (NDPK) catalyzes the transfer of gamma-phosphate from nucleoside triphosphates to nucleoside diphosphates. The subunit folding and the dimeric basic structural unit are remarkably the same for available structures but, depending on species, dimers self-associate to form hexamers or tetramers. The crystal structure of the Escherichia coli NDPK reveals a new tetrameric quaternary structure for this protein family. The two tetramers differ by the relative orientation of interacting dimers, which face either the convex or the concave side of their central sheet as in either Myxococcus xanthus (type I) or E. coli (type II), respectively. In the type II tetramer, the subunits interact by a new interface harboring a zone called the Kpn loop as in hexamers, but by the opposite face of this loop. The evolutionary conservation of the interface residues indicates that this new quaternary structure seems to be the most frequent assembly mode in bacterial tetrameric NDP kinases.
Institut de Biochimie et Génétique Cellulaires, UMR 5095 CNRS-Université Victor Segalen Bordeaux 2, 33077 Bordeaux cedex, France.