The relation between myosin Ca2+- and K+-adenosine triphosphatase activity of heart muscles in mammals of different size
| Autor: | Syrový I |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Physiology
Heart Ventricles ATPase p-Chloromercuribenzoic Acid Calcium-Transporting ATPases Myosins Body size Biochemistry Mice Species Specificity Myosin medicine Animals Trypsin Animal species Cation Transport Proteins Molecular Biology Adenosine Triphosphatases Adenosine triphosphatase biology Myocardium General Medicine Heart muscles Rats Kinetics biology.protein Cattle Rabbits Digestion Chloromercuribenzoates medicine.drug |
| Zdroj: | Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 72:289-293 |
| ISSN: | 0305-0491 |
| DOI: | 10.1016/0305-0491(82)90048-7 |
| Popis: | 1. 1. The influence of KCl and CaCl 2 on ATPase activity of ventricular myosin of the mouse, rat, rabbit and cow, the temperature dependence of ATPase and the effect of p CMB treatment and tryptic digestion on ATPase activity of these myosins were studied. 2. 2. Ca 2+ - and K + -ATPase activities of myosins were inversely related to body size of the animal species; when K + -ATPase activities were measured in the absence of EDTA, the body size/ATPase dependence was only slightly apparent. 3. 3. The influence of temperature, the effect of p CMB and the influence of tryptic digestion on Ca 2+ -ATPase activity distinguished the compared myosins. 4. 4. There was a marked alteration of the effect of myosin treatment with p CMB or trypsin on K + -ATPase activity of these myosins and in this case differences in K + -ATPase activities were less pronounced. |
| Databáze: | OpenAIRE |
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