Melting from both ends of an A-band in a myofibril. Observation with a phase-contrast microscope.
Observation with a phase-contrast microscope clearly shows that melting of an A-band, i.e., a bundle of thick (myosin) filaments, in a rabbit skeletal myofibril occurs from both ends in the pressure of high concentrations of KCl and PPi. Thick filaments partially melted from both ends can be obtained in a myofibril.
D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D011756:Diphosphates / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D008858:Microscopy, Phase-Contrast; D009210:Myofibrils / Q000187:drug effects / Q000648:ultrastructure*; D009218:Myosins; D011189:Potassium Chloride / Q000494:pharmacology; D011817:Rabbits
D011756:Diphosphates; D011189:Potassium Chloride; D009218:Myosins