Dipeptide Transport Across the Intestinal Brush Border
نویسندگان
چکیده
منابع مشابه
ATP-driven copper transport across the intestinal brush border membrane.
The divalent metal ion transporter DMT1 is localized in the brush border membrane (BBM) of the upper small intestine and has been shown to be able to transport Mn2+, Fe2+, Co2+, Ni2+, and Cu2+. Belgrade rats have a glycine-to-arginine (G185R) mutation in DMT1, which affects its function. We investigated copper transport with BBM vesicles of Belgrade rats loaded with calcein, which exhibits fluo...
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Epithelial brush-border membrane vesicles (BBMVs) of lobster (Homarus americanus) hepatopancreas were formed by a Mg2+ precipitation technique. In these BBMVs, [14C]glycylsarcosine ([14C]Gly-Sar) uptake was stimulated by a transmembrane proton gradient. transmembrane K+ diffusion potential (inside negative) stimulated [14C]Gly-Sar uptake above that observed with short-circuited vesicles, while ...
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The transport characteristics of aminocephalosporin antibiotics, possessing an alpha-amino group and a carboxyl group, in brush-border membranes isolated from rabbit small intestine have been studied by a rapid filtration technique. The uptake of cephradine by brush-border membrane vesicles was stimulated by the countertransport effect of dipeptides, which indicates the existence of a common ca...
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and plasminogen activator (Gordon et al., 1974). The synthetic pentapeptide Pz-peptide’ is also a substrate for macrophage enzyme(s) (C. H. Evans, D. C. Mears & J. L. Cosgrove, unpublished work). The neutral proteinases secreted by chondrocytes have, by comparison, received scant attention. Collagenase, ‘proteoglycanase’ and a non-specific proteinase that degrades globin have been reported (Des...
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Epithelial cells from diverse tissues, including the enterocytes that line the intestinal tract, remodel their apical surface during differentiation to form a brush border: an array of actin-supported membrane protrusions known as microvilli that increases the functional capacity of the tissue. Although our understanding of how epithelial cells assemble, stabilize, and organize apical microvill...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1970
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-197009000-00168