Viruses have small genomes with limited coding capacity. A common strategy by which viral genomes maximize their coding capacity is to express multifunctional proteins that promiscuously interact with various cellular partners to perform an array of essential functions. These interactions often involve flexible, and in some cases intrinsically disordered, viral domains or entire proteins that a...

BACKGROUND Thiol isomerases are a family of endoplasmic reticulum enzymes which orchestrate redox-based modifications of protein disulphide bonds. Previous studies have identified important roles for the thiol isomerases PDI and ERp5 in the regulation of normal platelet function. AIM Recently, we demonstrated the presence of a further five thiol isomerases at the platelet surface. In this rep...

D-Xylose isomerases from different bacterial strains were chemically modified with histidine and carboxylate-specific reagents. The active-site residues were identified by amino acid sequence analysis of peptides recognized by differential peptide mapping on ligand-protected and unprotected derivatized enzyme. Both types of modified residues were found to cluster in a region with consensus sequ...

OBJECTIVE Thiol isomerases facilitate protein folding in the endoplasmic reticulum, and several of these enzymes, including protein disulfide isomerase and ERp57, are mobilized to the surface of activated platelets, where they influence platelet aggregation, blood coagulation, and thrombus formation. In this study, we examined the synthesis and trafficking of thiol isomerases in megakaryocytes,...

(calcium-signal modulating cyclophilin ligand), and Cyp40 is part of the Hsp90/Hsc70 complex that binds steroid receptors. Likewise, FKBP12 is a subunit of two calcium Tony Hunter Molecular Biology and Virology Laboratory The Salk Institute channels (the ryanodine receptor and the IP 3 receptor), 10010 North Torrey Pines Road is needed for the function of the MDR drug efflux pump La Jolla, Cali...