Bacterial replication initiator DnaA. Rules for DnaA binding and roles of DnaA in origin unwinding and helicase loading.
We review the processes leading to the structural modifications required for the initiation of replication in Escherichia coli, the conversion of the initial complex to the open complex, loading of helicase, and the assembly of two replication forks. Rules for the binding of DnaA to its binding sites are derived, and the properties of ATP-DnaA are described. We provide new data on cooperative interaction and dimerization of DnaA proteins of E. coli, Streptomyces and Thermus thermophilus, and on the stoichiometry of DnaA-oriC complexes of E. coli.
Messer
W
W
Max-Planck-Institut für molekulare Genetik, Ihnestrasse 73, 14195, Berlin, Germany. messer@mpimg-berlin-dahlem.mpg.de
Blaesing
F
F
Jakimowicz
D
D
Krause
M
M
Majka
J
J
Nardmann
J
J
Schaper
S
S
Seitz
H
H
Speck
C
C
Weigel
C
C
Wegrzyn
G
G
Welzeck
M
M
Zakrzewska-Czerwinska
J
J
D001426:Bacterial Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D001483:Base Sequence; D004265:DNA Helicases / Q000235:genetics / Q000378:metabolism; D004261:DNA Replication; D004269:DNA, Bacterial / Q000235:genetics / Q000378:metabolism*; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D019281:Dimerization; D053488:DnaB Helicases; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism; D029968:Escherichia coli Proteins; D008958:Models, Molecular; D008969:Molecular Sequence Data; D012045:Regulatory Sequences, Nucleic Acid / Q000235:genetics; D018741:Replication Origin; D013302:Streptomyces / Q000235:genetics / Q000378:metabolism; D016963:Thermus thermophilus / Q000235:genetics / Q000378:metabolism
D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004268:DNA-Binding Proteins; C066312:DnaA protein, Bacteria; C071702:DnaC protein, E coli; D029968:Escherichia coli Proteins; D004265:DNA Helicases; D053488:DnaB Helicases