Dihedral/Index

Dihedral angles in proteins and the Ramachandran plotDihedral angles in proteins and the Ramachandran plot

This in an index page pointing to several resources on these topics.

• Definition of phi and psi, in English and Spanish. A very simple display, illustrated with simplified 3D models.

• Dihedral angles in proteins: an interactive display of phi and psi dihedral angles using a model of a tripeptide.
  • A regular page in Proteopedia.
  • Simple presentation, featuring a 3D model with planes, clashes and animations.

• Phi and Psi Angles: a more detailed, guided explanation of determination and display of angles in the 3D model.
  • A regular page in Proteopedia.

• The Ramachandran Plot
  • A regular page in Proteopedia. Featured in an article in Biochemistry and Molecular Biology Education, 2010.
  • Extensive description.

• Ramachandran Plot Inspection
  • A special "Tutorial" page in Proteopedia (by Angel Herráez)
  • Interactive Ramachandran plot with many controls and details, connecting the Ramachandran plot with the display on the 3D model. Includes planes, clashes and animations.

• The Ramachandran Principle, Phi (φ) and Psi (ψ) Angles in Proteins
  • A special "Tutorial" page in Proteopedia (by Eric Martz)
  • That tutorial repurposed as a slideshow in English (a Google Docs presentation)
  • That tutorial repurposed as a slideshow in Spanish (a Google Docs presentation)
  • Quiz in English
  • Quiz in Spanish

• Another animation of phi and psi angles connected to a Ramachandran plot (by David Jollie)

• Ramachandran outlier showcases a special case where a residue is not conforming to the favored values in the Ramachandran plot.