Metabolism and genetics of Helicobacter pylori: the genome era

Article Abstract:

Genome sequence information and microbial genomics have been found to provide increasingly useful information on fundamental and applied microbiology, molecular biology and general medicine. A study has been conducted to examine the published genome of strain Helicobacte pylori strain 26695. A level of divergence has been found when this genome was compare with genomic strain J99. Findings have also indicated that the sequence similarities provide predictions of functions but do not prove them. A protein whose function has been identified in one organism may have a different function when found in another organism.

Bacteria, Pathogenic, Pathogenic bacteria, Gene expression, Helicobacter pylori

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Extrachromosomal DNA in the apicomplexa

Article Abstract:

A study was conducted to examine the organization of mitochondrial and plastid-like extrachromosomal genomes of the human malaria parasite Plasmodium falciparum. Results show the existence of a 35-kb circular DNA, which is the smallest known vestigial plastid genome. It was also discovered that only two of its recognized genes are involved with genetic expression. One of the two encodes a member of the clp family of molecular chaperones while the other encodes a conserved protein of unknown function, which is both found in the algal plastids and in the eubacterial genomes.

Usage, DNA probes, Malaria, Parasites, Plasmodium falciparum

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Determination of the core of a minimal bacterial gene set

Article Abstract:

The determination of the core of a minimal bacterial gene set is detailed. The minimal bacterial genome contains 206 protein-coding genes with all the genetic information necessary for self-maintenance and reproduction in the presence of a full complement of essential nutrients and in the absence of environmental stress.

Science & research, DNA repair, Bacteria, Aerobic, Aerobic bacteria, Genetic research

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