3.6.5.6 dimer - 644199, 644202, 644205, 644206, 644207, 644209, 644210 3.6.5.6 dimer 2 * 55000, alpha and beta tubulin, SDS-PAGE 644208 3.6.5.6 dimer composed of 2 similar, but not identical chains designated alpha and beta 644203 3.6.5.6 heterodimer - 686631 3.6.5.6 heterodimer alpha-beta dimer 686645 3.6.5.6 heterodimer alpha-beta heterodimer 685083 3.6.5.6 heterodimer consists of an alpha and beta monomer 685385 3.6.5.6 heterodimer tubulin comes as a heterodimer of alpha and beta forms While there is only 45% amino-acid sequence similarity between alpha and beta tubulin isoforms, the three-dimensional structures of the monomers are very similar, each consisting of three domains of similar length and secondary structure composition: the N-terminal, the middle, and the C-terminal domain 756202 3.6.5.6 additional information can polimerize in vitro, analysis of the dimer 699587 3.6.5.6 additional information elongated microtubule protofilaments form at 37°C in the presence of GTP and later close into hollow cylindrical polymers 686631