A water-soluble cationic porphyrin, 5,10,15,20-Tetra(N-methylpyridinium-4-yl)-21H,23H-porphyrin has been shown to intercalate selectively into the A3-G4 gap of C-quadruplexed DNA d(TTAGGG)4.

in the present study ethanol and water extracts of 15 seaweeds, dictyota dichotoma var. velutricata, dictyota indica, iyengaria stellata, padina pavonia, sargassum swartzii, sargassum variegatum, stoechospermum marginatum, stokeyia indica, jolyna laminarioides, caulerpa taxifolia, halimeda tuna, ulva fasciata, ulva lactuca, solieria robusta, and melanothamnus afaqhusainii, were evaluated for th...

The presence of carbohydrate in many plasma and tissue proteins is well established (1, 2). The glycoproteins thus far studied contain one or several oligosaccharide units linked to a peptide chain by uncharacterized linkages. Little is yet known about the biosynthetic processes by which the oligosaccharide units are assembled and attached to the polypeptide chain. In order to approach these pr...

cy-1-Antitrypsin can be cleaved by cyanogen bromide and separated on a column of Sephadex G-50 into a glycopeptide-containing fraction and four to seven carbohydrate-free peptides. The void volume fractions containing the glycopeptides can be resolved further into four unique glycopeptides (A, B, C, and D) by ion exchange chromatography on DE62 cellulose by elution with increasing concentration...

Rabbits were immunized intravenously with intact indifferent streptococci, with homologous P fraction, and with an emulsion of mechanically ground cocci; others were sensitized by intravenous injection of the intact microorganisms. Their serologic and dermal reactions to these materials and to the homologous S fraction were compared with those of normal animals. The dissociation, in certain ins...

Polyalthia longifolia (masquerade tree) is a plant which believed to possess varied pharmacological and therapeutic values among different populations. The present report investigated the phytochemical composition, proximate, acute toxicity antioxidant potential of P. longfolia root. All analyses were carried out using established methods; activity crude methanol extract its fractions (n-hexane...

In traditional pulping, black liquor is burned in an alkali recovery system to produce energy. According the integrated forest biorefinery (IFBR) concept, hemicellulose partially pre-extracted prior pulp production generate value-added products. Corn stalks have a remarkable carbohydrate content (75% w/w), and thus were examined this study terms of IFBR concept. The hemicelluloses with hot wate...

Although fungi have always been with us as commensals and pathogens, fungal infections have been increasing in frequency over the past few decades. There is a growing body of literature describing the involvement of carbohydrate groups in various aspects of fungal disease. Carbohydrates comprising the cell wall or capsule, or as a component of glycoproteins, are the fungal cell surface entities...