FUN

Voyage au cœur du vivant avec les rayons X : la cristallographie (FUN)

Voyage au cœur du vivant avec les rayons X : la cristallographie (FUN)

L’utilisation des structures tridimensionnelles de macromolécules biologiques fait partie du quotidien d’un grand nombre de biologistes. Ces structures permettent de comprendre leur fonctionnement, de dessiner des mutants pour étudier leur fonction, de dessiner des molécules pour les bloquer ou les activer. L’approche majeure pour résoudre la structure tridimensionnelle de macromolécules biologiques est la cristallographie aux rayons X. Ce MOOC est une initiation complète à la cristallographie biologique : depuis l'histoire de la méthode jusqu'à ses outils concrets.Nous vous transmettons nos connaissances et notre expérience par le biais de vidéos théoriques et en situation.

A la fin de ce MOOC vous serez capable :

  • d’exploiter les structures tridimensionnelles avec un bon sens critique,
  • de résoudre la structure tridimensionnelle d’une macromolécule par cristallographie.

Pour cette nouvelle session, vous pourrez aussi appliquer vos nouvelles connaissances au cours d'une semaine supplémentaire.

Plan du cours

  1. Structures tridimensionnelles des macromolécules biologiques
  • Des structures tridimensionnelles : pourquoi faire ?
  • Des structures tridimensionnelles : comment faire ?
  1. Les fondamentaux de la cristallographie
  • Histoire de la cristallographie aux rayons X
  • Pourquoi et comment produire des rayons X ?
  1. L'échantillon : de sa production à sa cristallisation
  • Préparer son échantillon biologique
  • Cristalliser une macromolécule biologique
  1. Une semaine sur une ligne de lumière du synchrotron SOLEIL
  • L'acquisition des données de diffraction
  • Le traitement des données de diffraction
  1. Structures tridimensionnelles des macromolécules biologiques
  • Le problèmes des phases
  • La résolution de la strucure cristallographique
  • La construction, l'interprétation et l'analyse du modèle
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