title: Immunological relation between 14 S dynein and 30 S dynein from the cilia of Tetrahymena pyriformis.
abstract: The immunological relation between 14 S dynein and 30 S dynein obtained from Tetrahymena cilia was investigated by using antisera specific for each dynein subunit or some dynein subunits separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Although 14 and 30 S dynein main subunits have different electrophoretic mobilities, our immunodiffusion tests showed that there exists a close immunological relation between them. At least three immunologically different polypeptides designated polypeptides A, B and C are included in the 30 S dynein main band which has been recognized as a single component by electrophoresis, and that the polypeptides designated A',B' and C' are included in the 14 S dynein main bands. Polypeptides A and A',B and B', or C and C' appeared to have a certain common antigenic determinant(s). Polypeptide C of 30 S dynein was shown to possess a certain antigenic determinant(s) specific for 30 S dynein, besides the determinant common with that of polypeptide C' of 14S dynein. The second main component of 30 S dynein proved to be a specific polypeptide of 30 S dynein but not to be a degraded product of the main polypedtide. All antisera reacted with native dynein molecules to some extent, but did not inhibit dynein ATPase (ATP phosphohydrase, EC 3.6.1.3) activity significantly.
mesh_terms: D000251:Adenosine Triphosphatases / Q000276:immunology*; D000818:Animals; D000937:Antigen-Antibody Reactions; D002923:Cilia / Q000276:immunology*; D003429:Cross Reactions; D004398:Dyneins / Q000037:antagonists & inhibitors / Q000276:immunology*; D000939:Epitopes; D008970:Molecular Weight; D013329:Structure-Activity Relationship; D013769:Tetrahymena pyriformis
chemical_list: D000939:Epitopes; D000251:Adenosine Triphosphatases; D004398:Dyneins