Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Abstract: Since its discovery in 1960, ELISA technology has been utilized in an increasing number of biological and biochemical investigations. It has proven to be one of the most powerful tools available for probing recognition processes involving protein/protein, protein/glycoprotein, protein/glycolipid and glycoprotein/glycolipid interactions. This review begins with an introduc tion that provides an historical perspective on the development of ELISA followed by a description of the different classifications of this assay. One of the fundamental elements of ELISA is the adhesion of a molecule of interest to a solid support, generally a microtiter plate. Recent developments in the area of adhesion and adsorption are also presented. Although ELISA has been used most extensively in studying protein/protein interactions, in the past 10 years there have been a number of advances in ELISA technology that have allowed recognition processes involving carbohydrates to be studied. This review focuses on the use of ELISA in investigating diseases where carbohydrate recognition processes are implicated. Since studies related to the HIV virus have provided a major impetus for the advancement of ELISA technology, this area of research is highlighted.
Peracetylated N-acetylneuraminic acid (NeuAc) was efficiently coupled to esters of glycine, alanine, and serine using BOP and HOBT in the presence of DIEA. Deprotection of the esters readied the NeuAc-α-amino acid conjugates for further elaboration. Coupling of the NeuAc-gly adduct with β-O-methoxy neuraminic acid methyl ester afforded a selectively protected glycine linked sialic acid dimer. 2-Amino-3,4-di-O-benzyl-(1→6)-anhydroglucose and alanine benzyl ester were also efficiently coupled to the bis adduct giving novel trimeric analogs. Elimination of the anomeric acetate from the NeuAc-gly dimer followed by global deprotection provided a novel saccharopeptide with modest clostridial sialidase inhibitory activity.
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.