Bacterial Antigens - Bacterial Antigens Bacterial cells are...

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Bacterial Antigens Bacterial cells are between 0.3 and 5 lm in size. They have three basic forms: cocci, straight rods, and curved or spiral rods (Table 1). The nucleoid consists of a very thin, long, circular DNA molecular double strand that is not surrounded by a membrane. Among the nonessential genetic structures are the plasmids. The cytoplasmic membrane harbors numerous proteins such as permeases, cell wall synthesis enzymes, sensor proteins, secretion system proteins, and, in aerobic bacteria, respiratory chain enzymes. The membrane is surrounded by the cell wall, the most important element of which is the supporting murein skeleton (Figure 1a). The cell wall of Gram-negative bacteria features a porous outer membrane into the outer surface of which the lipopolysaccharide responsible for the pathogenesis of Gram-negative infections is integrated.
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  • Spring '14
  • Bacteria, DNA, Bacterial Antigens, Creative Diagnostics, porous outer membrane

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