Bacterial Genomes and Infectious Diseases

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Abstract
The genome sequencing approach has proved to be highly effective and invaluable for gaining an insight on structure of bacteria genomes and the biology and evolution of bacteria. The diversity of bacteria genomes is beyond expectation. Gaining a full understanding of the biology and pathogenic mechanisms of these pathogens will be a major task because on an average only approximately 69% of the encoded proteins in each genome have known functions. Genome sequence analyses have identified novel putative virulence genes, vaccine candidates, targets for antibacterial drugs, and specific diagnostic probes. Microarray technology that makes use of the genomic sequences of human and bacterial pathogens will be a major tool for gaining full understanding of the complexity of host-pathogen interactions and mechanisms of pathogenesis.