Composition and Partial Structure Characterization ofTremellaPolysaccharides

Composition and Partial Structure Characterization of Tremella Polysaccharides

Heteropolysaccharides isolated from liquid cultures of nine Tremella species contained 0.3 to 1.2% protein, 2.7 to 5% ash, 0.9 to 3.4% acetyl groups, 76.5 to 84.2% carbohydrates and trace amounts of starch. The polysaccharides in aqueous solution were slightly acidic (pH 5.1 to 5.6). They consisted of the following monomeric sugars: fucose, ribose, xylose, arabinose, mannose, galactose, glucose...

Chapter 1 . SURFACE CHARACTERIZATION : COMPOSITION STRUCTURE AND TOPOGRAPHY

Production and Partial Characterization of Monoclonal Antibodies to Leishmania

Background: Monoclonal antibody technology allows identification of amastigote-specific antigen in human tissue biopsies and search for a suitable vaccine candidate, which may induce a long lasting immunity. Objectives: Production and partial characterization of seven monoclonal antibodies against Leishmania tropica promstigotes. Methods: Seven murine monoclonal antibodies of the IgG isotype we...

Partial Purification and Characterization

An enzyme fraction containing phosphatase activity for phosphorylated eukaryotic peptide initiation factor 2 (eIF-2) has been isolated from rabbit reticulocytes and partially characterized, The enzyme efficiently catalyzes release of phosphate from the small subunit of eIF-2 (eIF-2a) that has been phosphorylated by the hemin-controlled repressor. It is shown to restore activity of this phosphor...

Characterization and Partial Purification

A bstract. Platelets have been shown to affect the growth of vascular endothelial cells. This report describes the characterization and partial purification from human platelets of a novel growth factor which can stimulate human endothelial cells to synthesize DNA and grow. Platelets were lysed by sonication and the particulate fraction removed by ultracentrifugation at 100,000 g. The supernata...