Structural features and anticoagulant activities of a novel natural low molecular weight heparin from the shrimp Penaeus brasiliensis

Date
1999-08-05Author
Dietrich, C. P.
Paiva, J. F.
Castro, RAB
Chavante, S. F.
Jeske, W.
Fareed, J.
Gorin, PAJ
Mendes, A.
Nader, H. B.
Type
ArtigoISSN
0304-4165Is part of
Biochimica Et Biophysica Acta-general SubjectsDOI
10.1016/S0304-4165(99)00087-2Metadata
Show full item recordAbstract
A natural low molecular weight heparin (8.5 kDa), with an anticoagulant activity of 95 IU/mg by the USP assay, was isolated from the shrimp Penaeus brasiliensis. the crustacean heparin was susceptible to both heparinase and heparitinase II from Flavobacterium heparinum forming tri- and di-sulfated disaccharides as the mammalian heparins. C-13 and H-1 NMR spectroscopy revealed that the shrimp heparin was enriched in both glucuronic and non-sulfated iduronic acid residues. the in vitro anticlotting activities in different steps of the coagulation cascade have shown that its anticoagulant action is mainly exerted through the inhibition of factor Xa and heparin cofactor II-mediated inhibition of thrombin. the shrimp heparin has also a potent in vivo antithrombotic activity comparable to the mammalian low molecular weight heparins. (C) 1999 Elsevier Science B.V. All rights reserved.
Citation
Biochimica Et Biophysica Acta-general Subjects. Amsterdam: Elsevier B.V., v. 1428, n. 2-3, p. 273-283, 1999.Keywords
shrimp heparin structureshrimp heparin NMR
invertebrate heparin
natural low molecular weight shrimp heparin
shrimp heparin
anticlotting activity
antithrombotic activity
Crustacean heparin
Collections
- EPM - Artigos [17701]
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