title: Computer averaging of single molecules of alpha 2-macroglobulin and the alpha 2-macroglobulin/trypsin complex.
abstract: From electron micrographs single molecules of alpha 2-macroglobulin in the "closed" form, the "open" form and as the trypsin complex have been computer averaged. The molecular images are discussed. Molecules of the electrophoretically fast migrating "F-form" have the "closed" form. In the case of the alpha 2-macroglobulin/trypsin complex the two attached trypsin molecules are located very near to each other and in the central part of the alpha 2-macroglobulin molecule.
mesh_terms: D003201:Computers; D006801:Humans; D007700:Kinetics; D008854:Microscopy, Electron; D011485:Protein Binding; D011487:Protein Conformation; D014357:Trypsin / Q000378:metabolism*; D000511:alpha-Macroglobulins / Q000378:metabolism*
chemical_list: D000511:alpha-Macroglobulins; D014357:Trypsin