Studies on the transverse tubule membrane Mg-ATPase. Lectin-induced alterations of kinetic behavior.
نویسندگان
چکیده
منابع مشابه
Common structural domains in the sarcoplasmic reticulum Ca-ATPase and the transverse tubule Mg-ATPase
Transverse tubule (TT) membranes isolated from chicken skeletal muscle possess a very active magnesium-stimulated ATPase (Mg-ATPase) activity. The Mg-ATPase has been tentatively identified as a 102-kD concanavalin A (Con A)-binding glycoprotein comprising 80% of the integral membrane protein (Okamoto, V.R., 1985, Arch. Biochem. Biophys., 237:43-54). To firmly identify the Mg-ATPase as the 102-k...
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15 صفحه اولTransverse tubule Mg(2+)-ATPase of skeletal muscle. Evidence for extracellular orientation of the chicken and rabbit enzymes.
The orientation of the enzyme Mg(2+)-ATPase (EC 3.6.1.3) in the transverse tubule (TT) membranes of skeletal muscle was investigated using highly purified chicken and rabbit TT vesicles. The percentage of sealed vesicles present in these preparations averaged 88 and 78%, respectively, as calculated from the detergent-induced increase in ouabain-sensitive (Na+, K+)-ATPase activity, ATP-dependent...
متن کاملDysferlin stabilizes stress-induced Ca signaling in the transverse tubule membrane
Dysferlinopathies, most commonly limb girdle muscular dystrophy 2B and Miyoshi myopathy, are degenerative myopathies caused by mutations in the DYSF gene encoding the protein dysferlin. Studies of dysferlin have focused on its role in the repair of the sarcolemma of skeletal muscle, but dysferlin’s association with calcium (Ca) signaling proteins in the transverse (t-) tubules suggests addition...
متن کاملDysferlin stabilizes stress-induced Ca2+ signaling in the transverse tubule membrane.
Dysferlinopathies, most commonly limb girdle muscular dystrophy 2B and Miyoshi myopathy, are degenerative myopathies caused by mutations in the DYSF gene encoding the protein dysferlin. Studies of dysferlin have focused on its role in the repair of the sarcolemma of skeletal muscle, but dysferlin's association with calcium (Ca(2+)) signaling proteins in the transverse (t-) tubules suggests addi...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1986
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)67231-x