منابع مشابه
Lipids of bovine adrenal plasma membranes.
The lipid composition of a membrane fraction from bovine adrenal cortex was determined. This preparation has the capacity to bind adrenocorticotropic hormone and is enriched in adenylate cyclase and 5'-nucleotidase. The adrenal plasma membranes have a significantly higher lipid content (54.8%) than bovine liver plasma membranes and a surprisingly low proportion of this lipid is cholesterol (4.2...
متن کاملAdenylate cyclase system of bovine adrenal plasma membranes.
The adenylate cyclase system present in a preparation enriched in plasma membranes derived from bovine adrenal cortex was investigated in considerable detail. This system is stimulated by adrenocorticotropic hormone (ACTH), by biologically active analogs of this hormone, and by fluoride ion. The preparation contains sodium-potassium- and magnesium-dependent ATPases that are markedly inhibited b...
متن کاملReceptor for thyrotropin-releasing hormone in plasma membranes of bovine anterior pituitary gland. Role of lipids.
The receptor for thyrotropin-releasing hormone has been located in the plasma membranes of bovine anterior pituitary gland. Treatment of membranes with phospholipase A, phospholipase C, or digitonin or addition of lysophosphatidylcholine diminishes or completely destroys the ability of membranes to bind 3H-labeled thyrotropin-releasing hormone. Phospholipase D was without effect. These reductio...
متن کاملPlasma lipids, lipoproteins and cell membranes.
The major plasma lipids, cholesteryl ester, triacylglycerol, cholesterol and phospholipid, are insoluble in water. They are transported in the circulation as lipoproteins-metabolically diverse macromolecules in which the various lipids are associated with specific polypeptides (the apoproteins). There are four main lipoprotein classes, defined by their size and by the density range within which...
متن کاملPlasma membranes from adrenal cells: purification and properties.
A method is reported for preparing surface (plasma) membranes from adrenal tumour (Y-1) cells. The procedure is based upon homogenization in hypotonic ZnCl2 followed by sedimentation through two sucrose density gradients. The purified membranes consist of large sheets of membrane. The identity and purity of the membranes was demonstrated by: (1) microscopy (phase contrast and electron); (2) enz...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1975
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)41798-5