Protein targeting to the bacterial cytoplasmic membrane

Article Abstract:

ATPase, a potent energy source of eukaryotic microorganisms, has been reported to play an integral role in the translocation of proteins in the cellular compartments of bacteria. Through a series of SecA preprotein association, the enzyme expedites the binding and hydrolysis of ATP in various binding sites on the SecA molecule, thereby initiating a stepwise translocation of protein along the membrane. Although the signal sequence arising from such a process consists of three domains, it actually acts as a single entity.

Physiological aspects, Proteins, Protein synthesis, Cell membranes, Adenosine triphosphate, ATP

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The bacterial actin-like cytoskeleton

Article Abstract:

The cellular, structural and biochemical properties of several proteins, including MreB and ParM, which commonly act as the bacterial actins and even largely associate with other dynamic bacterial-actin like cytoskeleton are presented. The results of the analysis reveal that cytoskeleton act as a central organizer for an accurate positioning of the proteins and other nucleoprotein complexes and thus helps in controlling macromolecular trafficking in bacterial cells.

Actin, Cytoskeleton, Bacterial proteins, Structure, Chemical properties, Report

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Replication and control of circular bacterial plasmids

Article Abstract:

Research was conducted to investigate the mechanisms underlying the replication and regulation of circular bacterial plasmids. The three general replication mechanisms for circular plasmids are theta type, strand displacement and rolling circle. Results showed that different DNA polymerases are involved in the initiation and elongation of plasmid replication, while the control of plasmids involves antisense RNA, DNA sequences or interaction between RNA and proteins.

Research, Genetic aspects, Plasmids, Bacteria, Chromosome replication

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