Coagulation of Myosin by Dehydration
نویسنده
چکیده
When myosin is dehydrated it becomes insoluble. The number of detectable SH groups in myosin coagulated by dehydration is the same as in native soluble myosin. In this respect coagulation by dehydration differs from coagulation brought about in any of the other ways now known, but resembles the coagulation that occurs in muscle during rigor and in the egg after fertilization.
منابع مشابه
The Coagulation of Myosin in Muscle
1. Muscle can be prepared in the form of a dry powder in which myosin exists in a state similar to that in intact muscle. As in intact muscle, myosin in powdered muscle is soluble and can be caused to rapidly coagulate. 2. Restoring to powdered muscle the quantity of water previously removed causes coagulation of myosin. The rate of coagulation is considerably slower at 0 degrees than at 20 deg...
متن کاملQuantification of Tissue Shrinkage and Dehydration Caused by Microwave Ablation_ Experimental Study in Kidneys for the Estimation of Effective Coagulation VolumeQuantification of Tissue Shrinkage/Dehydration in MW Ablation
Purpose: To quantify the extent of tissue shrinkage and dehydration caused by microwave (MW) ablation in kidneys for estimation of effective coagulation volume. Materials and Methods: MW ablations were carried out in ex vivo porcine kidneys. Six study groups were defined: groups 1A, 2A, and 3A for MW ablation (90 W for 5 min, 7.5 min, or 10 min), and groups 1B, 2B, and 3B for control (without M...
متن کاملLoad-dependent sliding direction change of a myosin head on an actin molecule and its energetic aspects: Energy borrowing model of a cross-bridge cycle
A model of muscle contraction is proposed, assuming loose coupling between power strokes and ATP hydrolysis of a myosin head. The energy borrowing mechanism is introduced in a cross-bridge cycle that borrows energy from the environment to cover the necessary energy for enthalpy production during sliding movement. Important premises for modeling are as follows: 1) the interaction area where a my...
متن کاملThe Change in State of the Proteins of Muscle in Rigor
1. When myosin is exposed to a typical denaturing agent (acid) it becomes insoluble and its SH groups are activated. 2. The same number of active SH groups is found in the soluble myosin of resting muscle as in the insoluble myosin of muscle in rigor. No activation of SH groups accompanies the formation of insoluble protein in rigor. 3. When the insoluble myosin of muscle in rigor is treated wi...
متن کاملHypernatremic dehydration, diabetes insipidus, and cerebral venous sinus thrombosis in a neonate: a case report
Background In breast-fed neonates, hypernatremia may occur from inadequate breast milk production, central or nephrogenic diabetes insipidus, gastroenteritis, or salt poisoning. Hypernatremic dehydration is a known risk factor for cerebral sinus thrombosis and death. We report a breastfed neonate with hypernatremic dehydration, diabetes insipidus, cerebral sinus thrombosis, and disseminated int...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- The Journal of General Physiology
دوره 20 شماره
صفحات -
تاریخ انتشار 1937