{PDOC00771} {PS01008; DNAA} {BEGIN} ************************** * DnaA protein signature * ************************** The bacterial dnaA protein [1,2,3] plays an important role in initiating and regulating chromosomal replication. DnaA is an ATP- and DNA-binding protein. It binds specifically to 9 bp nucleotide repeats known as dnaA boxes which are found in the chromosome origin of replication (oriC). DnaA is a protein of about 50 Kd that contains two conserved regions: the first is located in the N-terminal half and corresponds to the ATP-binding domain, the second is located in the C-terminal half and could be involved in DNA-binding. We used the most conserved part of the putative DNA-binding domain as a signature pattern. -Consensus pattern: [IL]-[GA]-x(2)-[LIVMF]-[SGADENK]-x(0,1)-[KR]-x-H-[STPA]- [STAV]-[LIVM]-x(2)-[SGAMN]-x(3)-[LIVM] -Sequences known to belong to this class detected by the pattern: ALL. -Other sequence(s) detected in Swiss-Prot: NONE. -Last update: December 2004 / Pattern and text revised. [ 1] Skarstad K., Boye E. "The initiator protein DnaA: evolution, properties and function." Biochim. Biophys. Acta 1217:111-130(1994). PubMed=8110826 [ 2] Yoshikawa H., Ogasawara N. "Structure and function of DnaA and the DnaA-box in eubacteria: evolutionary relationships of bacterial replication origins." Mol. Microbiol. 5:2589-2597(1991). PubMed=1779750 [ 3] Georgopoulos C. "The E. coli dnaA initiation protein: a protein for all seasons." Trends Genet. 5:319-321(1989). PubMed=2558436 -------------------------------------------------------------------------------- PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0) License, see https://prosite.expasy.org/prosite_license.html -------------------------------------------------------------------------------- {END}