Definition of three classes of binding sites in isolated microtubule crystals.

Alkaloids/metabolism Animals Binding Sites Centrifugation, Density Gradient Colchicine/metabolism,radiation effects Cyclic AMP/metabolism Cyclic GMP/metabolism Guanosine Triphosphate/metabolism Kinetics Macromolecular Substances Mathematics Microtubules/metabolism,radiation effects Phosphates/metabolism Phosphorus Isotopes Plants, Medicinal Plants, Toxic Podophyllum Protein Binding Radiation Effects Sea Urchins Spectrophotometry Temperature Thermodynamics Tritium Ultraviolet Rays Vinblastine/metabolism

Alkaloids Macromolecular Substances Phosphates Phosphorus Isotopes Tritium Vinblastine Guanosine Triphosphate Cyclic AMP Cyclic GMP Colchicine