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This Concept Map, created with IHMC CmapTools, has information related to: Answers_pili, pili (fimbriae) structure and composition The pilus has a shaft composed of a protein called pilin. At the end of the shaft is the adhesive tip structure having a shape corresponding to that of specific glycoprotein or glycolipid receptors on a host cell., Usually quite numerous; organelles of adhesion allowing bacteria to colonize environmental surfaces or cells and resist flushing. other benefits The same bacterium may switch the adhesive tips of the pili in order to adhere to different types of cells and evade immune defenses., long conjugation pili ("F" or sex pili) function Enables conjugation, the transfer of DNA from a donor or male bacterium with a sex pilus to a recipient or female bacterium to enable genetic recombination., The pilus has a shaft composed of a protein called pilin. At the end of the shaft is the adhesive tip structure having a shape corresponding to that of specific glycoprotein or glycolipid receptors on a host cell. types long conjugation pili ("F" or sex pili), pili (fimbriae) structure and composition Thin, protein tubes originating from the cytoplasmic membrane; found in virtually all gram-negative bacteria but not in many gram-positive bacteria., The pilus has a shaft composed of a protein called pilin. At the end of the shaft is the adhesive tip structure having a shape corresponding to that of specific glycoprotein or glycolipid receptors on a host cell. types Type IV pili not only allow for attachment but also enable a twitching motility. They are located at the poles of bacilli and allow for a gliding motility along a solid surface such as a host cell., The pilus has a shaft composed of a protein called pilin. At the end of the shaft is the adhesive tip structure having a shape corresponding to that of specific glycoprotein or glycolipid receptors on a host cell. types short attachment pili (fimbriae), pili (fimbriae) initiation of adaptive immunity Antibodies made against the adhesive tips of bacterial pili can prevent bacteria from adhering to host cells., Type IV pili not only allow for attachment but also enable a twitching motility. They are located at the poles of bacilli and allow for a gliding motility along a solid surface such as a host cell. function Extension and retraction of these pili allows the bacterium to drag itself along the solid surface., short attachment pili (fimbriae) function Usually quite numerous; organelles of adhesion allowing bacteria to colonize environmental surfaces or cells and resist flushing., pili (fimbriae) initiation of adaptive immunity Antibodies made against pili antigens can stick bacteria to phagocytes (opsonization).
