Glycoproteins and Blood Group Activity
نویسندگان
چکیده
منابع مشابه
Laminin-10 and Lutheran blood group glycoproteins in adhesion of human endothelial cells.
Laminin alpha5-chain, a constituent of laminins-10 and -11, is expressed in endothelial basement membranes. In this study we evaluated the roles of alpha5 laminins and Lutheran blood group glycoproteins (Lu), recently identified receptors of the laminin alpha5-chain, in the adhesion of human dermal microvascular and pulmonary artery endothelial cells. Field emission scanning electron microscopy...
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An N-acetylgalactosaminyltransferase has been found in canine respiratory tissue which catalyzes the transfer of GalNAc from UDP-GalNAc to a blood group H substance with the formation of a substance with human blood group A activity. The transfer was dependent upon Mn2+ and was stimulated several fold by Triton X-100. The optimal pH was between 5 and 6. The approximate K, values for UDP-GalNAc ...
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Distribution of blood group A, B, and H(O) activities among 282 aerobic Gram-negative bacteria, many isolated from the blood of patients, has been studied. Almost half of these bacteria were found to be blood group active. About 10 per cent of the organisms exhibited high, disproportional activities, which in some instances approached those of crude human blood group mucoids. No significant, sp...
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Hogs can be divided into three phenotypes A, H and In, depending on the ability of extracts of their submaxillary glands to inhibit the agglutination of human A cells with human anti-A, and human O cells with eel-anti-H serum. Evidence is here provided that the inactive glycoprotein, In, represents H active glycoprotein containing additional N-glycolyl neuraminic acid, which stereospecifically ...
متن کاملThe interaction of concanavalin A with blood-group-substance glycoproteins from human secretions.
1. Gastric juice, saliva and ovarian-cyst fluid were fractionated into glycoprotein components by centrifuging to equilibrium in a caesium chloride density gradient. 2. The glycoprotein fractions from the gastric juice of two group O non-secretors, two group O secretors and three group A secretors all formed insoluble complexes with concanavalin A. 3. Fractions showing maximum interaction with ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1972
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)44771-6