title: Head-to-tail polymerization of microtubules in vitro.
mesh_terms: D001704:Biopolymers; D006160:Guanosine Triphosphate / Q000031:analogs & derivatives; D007700:Kinetics; D008870:Microtubules; D008956:Models, Chemical; D014316:Tritium; D014404:Tubulin
chemical_list: D001704:Biopolymers; D014404:Tubulin; D014316:Tritium; C011265:guanosine 5'-(beta,gamma-methylene)triphosphate; D006160:Guanosine Triphosphate