Chromosome replication, nucleoid segregation and cell division in archaea.
Recent progress in cell cycle analysis of archaea has included the identification of putative chromosome replication origins, novel DNA polymerases and an unusual mode of cell cycle organization featuring multiple copies of the chromosome and asymmetric cell divisions. Genome sequence data indicate that in crenarchaea, the 'ubiquitous' FtsZ/MinD-based prokaryotic cell division apparatus is absent and division therefore must occur by unique, as-yet-unidentified mechanisms. The evolutionary and functional relationships between the archaeal Cdc6 protein and bacterial and eukaryal replication initiation factors are discussed.
Bernander
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Dept of Cell and Molecular Biology, Box 596, Biomedical Center, Uppsala University, SE-751 24 Uppsala, Sweden. rolf.bernander@icm.uu.se
D001105:Archaea / Q000166:cytology / Q000235:genetics*; D019843:Archaeal Proteins / Q000235:genetics; D018797:Cell Cycle Proteins / Q000378:metabolism; D002455:Cell Division; D002467:Cell Nucleus / Q000378:metabolism; D020090:Chromosome Segregation; D019847:Chromosomes, Archaeal / Q000378:metabolism*; D004261:DNA Replication; D019641:DNA, Archaeal / Q000737:chemistry / Q000378:metabolism; D004259:DNA-Directed DNA Polymerase / Q000502:physiology; D018809:Proliferating Cell Nuclear Antigen / Q000378:metabolism; D029701:Saccharomyces cerevisiae Proteins
D019843:Archaeal Proteins; C066503:CDC6 protein, S cerevisiae; D018797:Cell Cycle Proteins; D019641:DNA, Archaeal; D018809:Proliferating Cell Nuclear Antigen; D029701:Saccharomyces cerevisiae Proteins; D004259:DNA-Directed DNA Polymerase