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The Egg PowerPoint Presentation

The Egg

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The Egg

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Presentation Transcript

  1. The Egg

  2. Egg Microvilli

  3. Zona Pellucida Zp

  4. Zona Pellucida Glycoproteins

  5. The Sperm

  6. Axonemes and Sliding Microtubules

  7. Sperm Surface Asymmetry

  8. Sea Urchins

  9. Sea Urchin Acrosome Reaction

  10. Sea Urchin Fertilization Direct Binding of Sperm to Egg

  11. Competition Assay to Identify Egg Receptor

  12. Isolated Zona Pellucida Blocks Sperm Binding + ZP (2 cell) + ZP

  13. Isolated ZP3 Blocks Sperm Binding

  14. Gal Gal NAcGlc NAcGlc NAcGlc NAcGlc Man Man Man Man Man Man O-linked Oligosaccharide O-linked Oligosaccharide Galactosyl Transferase + 2UDP-Gal Galactosyl Transferase

  15. Role of Galactosyl Transferase in Binding to Egg

  16. Acrosome Reaction & Penetration of Zona Pellucida

  17. Vesiculation of Acrosome

  18. Fertilins and ADAMs family proteins

  19. Fertilin-a hydrophobic domain

  20. Model for Fertilin Function During Fertilization

  21. Incorporation of Sperm Into Egg – Role of Microvilli

  22. Incorporation of Sperm Components Into Egg

  23. Formation of Sperm Pronucleus

  24. Persistence of Sperm Mitochondria In Embryos

  25. Propagation of Calcium “Wave”