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Unformatted text preview: pilins in pili, flagellins in flagella) = The general function of pili and fimbriae is to aid in attachment to surfaces, including tissue Surfaces The shape of a bacterial cell is determined by the cell wall, which serves to protect the cell from osmotic lysis- The major polymer of most bacterial cell walls is peptidoglycan, which forms a continuous network around the cell = One part of peptidoglycan consists of polysaccharide chains composed of repeating units of two monosaccharides, N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) (Tortora et al., Figure 4.11) = Attached to each molecule of NAM is a chain of four amino acids, the "tetrapeptide side chain"; the amino acids include D-isomers, making them different from protein polypeptides = The tetrapeptide side chains are covalently linked, sometimes through additional amino acids, forming a strong three-dimensional network (Tortora et al., Figure 4.12a)...
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.
- Fall '09