منابع مشابه
Brush Border Membranes. Ciba Foundation Symposium 95
paradox tacitly describes the specific and dynamic pathways along which plasma membranes must be moved in cells, and several studies on the nature and regulation of this complex system have been assembled and summarized in this volume, which contains papers and discussions from a symposium on membrane recycling held at the Ciba Foundation in London in January 1982. As is the case with nearly al...
متن کاملGlycosaminoglycans from renal brush border membranes of rabbits.
Brush border membranes were prepared from the rabbit kidney cortex by sucrose density gradient centrifugation and digested with pronase. A glycosaminoglycan fraction was isolated from the digest by ion-exchange chromatography. Electrophoretogram on cellulose acetate membrane (Separax) of the glycosaminoglycan fraction indicated the presence of two components, which were identified as chondroiti...
متن کاملKinetics of sodium succinate cotransport across renal brush-border membranes.
The kinetics of Na/succinate cotransport across renal brush-borders was studied using membrane vesicles. Initial rates of succinate uptake (Js) were estimated from 1-s uptakes measured under voltage-clamped conditions. Lowering the external (cis) sodium concentration reduced the succinate Kt without affecting the Jsmax. Increasing the intravesicular (trans) sodium concentration reduced both Jsm...
متن کاملActive alanine transport in isolated brush border membranes.
Uptake of L-alanine against a concentration gradient has been shown to occur with isolated brush border membranes from rat small intestine. An alanine transport system, displaying the following characteristics, was shown: (a) L-alanine was taken up and released faster than D-alanine; (b) Na+ as well as Li+ stimulated the uptake of both stereoisomers; (c) the uptake of L- and D-alanine showed sa...
متن کاملIntestinal brush border membranes contain regulatory subunits of adenylyl cyclase.
Cholera toxin alters intestinal function by stimulation of adenylyl cyclase [ATP pyrophosphate-lyase (cyclizing) or adenylate cyclase, EC 4.6.1.1]. The mechanism of this activation is unknown and particularly puzzling because adenylyl cyclase is confined to the basal lateral membrane of enterocytes, whereas it is the brush border membrane that binds the toxin and contains proteins that undergo ...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1983
ISSN: 0014-5793
DOI: 10.1016/0014-5793(83)81088-6