Frontiers | Where and When Bacterial Chromosome Replication …
2018年11月25日 · Bacterial chromosomes have a single, unique replication origin (named oriC), from which DNA synthesis starts. This study describes methods of visualizing oriC regions and the chromosome replication in single living bacterial cells in real-time.
2.4B: The Bacterial Chromosome and Nucleoid - Biology LibreTexts
2023年8月31日 · In bacteria, Par proteins function to separate bacterial chromosomes to opposite poles of the cell during cell division. They bind to the origin of replication of the DNA and physically pull or push the chromosomes apart, similar to the mitotic apparatus of eukaryotic cells.
14.4: DNA Replication in Prokaryotes - Biology LibreTexts
Replication in prokaryotes starts from a sequence found on the chromosome called the origin of replication—the point at which the DNA opens up. Helicase opens up the DNA double helix, resulting in the formation of the replication fork.
Replication in Bacteria - Biology LibreTexts
2023年6月20日 · Multiple replication forks per chromosome allow bacteria to divide more rapidly than the replication cycle time. This diagram illustrates a bacterial cell dividing every 30 min, and hence initiating a new cycle of replication every 30 min.
Toward an understanding of the DNA replication initiation in bacteria
2024年1月4日 · In this mini-review, we discuss the current state of knowledge concerning the structure of the origin region in bacterial chromosomes and plasmids, recently discovered motifs recognized by replication initiator proteins, and proposed in …
oriC -encoded instructions for the initiation of bacterial chromosome ...
In this review, we summarize our current knowledge and understanding of the information encoded in bacterial origins of chromosomal replication, particularly in the context of replication initiation and its regulation.
Regulation of the initiation of chromosomal replication in bacteria
2007年7月1日 · Initiation of chromosome replication is the first and tightly controlled step of a DNA synthesis. Bacterial chromosome replication is initiated at a single origin, oriC, by the initiator protein DnaA, which specifically interacts with 9-bp nonpalindromic sequences (DnaA boxes) at …
2019年6月4日 · In this Review , we explore the contributions of chromosome structure and nucleoid organization to cell cycle regulation, detail the cellular processes involved in the initiation of DNA...
Origins of DNA replication | PLOS Genetics
2019年9月12日 · Most bacterial chromosomes are circular and contain a single origin of chromosomal replication (oriC). Bacterial oriC regions are surprisingly diverse in size (ranging from 250 bp to 2 kbp), sequence, and organization [ 41 ][ 42 ]; nonetheless, their ability to drive replication onset typically depends on sequence-specific readout of consensus ...
Abstract | During the bacterial cell cycle, the processes of chromosome replication, DNA segregation, DNA repair and cell division are coordinated by precisely defined events. Tremendous...