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For more information, please see full course syllabus of Microbiology
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Antigenic Composition of Bacteria

  • Introduction
    • Antibody-antigen interaction with bacteria as antigen
  • Bacterial Adaptations that are Antigenic
    • Cell wall components (fimbriae, pili, peptidoglycan)
    • Bacterial capsules
    • Bacterial morphology such as flagella
    • Bacterial toxins, lipopolysaccharides, and proteins
  • Bacterial Antigenic Variation over Time
  • Vaccination against Bacterial Antigens

Antigenic Composition of Bacteria

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Bacteria as Antigens 1:04
    • Antigen-antibody Interaction
    • Bacterial Adaptations as Antigens
    • Cell Wall Components
    • Capsules as Antigens
    • Flagella as Antigens
    • Antigenic Variation
    • Bacterial Antigenicity and Vaccines
  • Antigen-Antibody Interaction 2:20
    • What are Antigens
    • Examples of Antigens
  • Bacteria as Antigens 4:33
    • Adaptation to the Human Host Environment
    • Pathogenic Agent
    • Criteria for Effective Antigenicity
  • Bacterial Adaptations That are Antigenic 7:36
    • Pila
    • Flagella as Antigens
    • Fimbriae
    • Capsules as Antigens
    • Peptidoglycan
    • S Proteins
    • M Protein and Lipid A
  • Cell Wall Components 9:47
    • Neisseria Gonorrhea
    • Fimbriae and Opa
    • After Attachment, Host Cell Takes Bacteria
    • Secretory Antibodies
    • Circulating Antibodies
    • Capsule
    • Neutralize the Virulence
  • Bacterial Capsules as Antigens 13:20
    • S. Pneumoniae
    • B. Anthracis
    • S. Pyogenes
  • Bacterial Antigenicity 15:30
    • Motility and Vibrio Cholerae
    • Flagella are Antigenic
    • Agglutinate or Immobilize Bacterial Cells
  • Antigenic Variation 17:49
  • Antigenic Variation Over Time 18:54
  • Antigenic Variation by Space and Time 22:12
  • Bacterial Antigenicity and Vaccines 24:02
  • Example 1 27:36
  • Example 2 31:24