Folds in the all alpha-helix class
II. Assemblies of long helices

The N-terminal domain of seryl-tRNA synthetase from Thermus thermophilus.  An excellent example of the coiled-coil motif. The curvature of the helices allows intimate packing of the side chains.
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          (for all models).
  Apolipophorin. A protein involved in transport of lipids.
  Aspartate receptor from E. coli. A transmembrane signaling protein involved in chemotaxis.
  Syntaxin 1A. A part of the apparatus for exocytosis of synaptic vesicles.
  Blow-up of a helix from syntaxin. What do you observe regarding the number of strong peptide hydrogen bonds?
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