title: [Identification of intracellular regulatory protein for ion channel using yeast two-hybrid system].
abstract: Many proteins including ion channels mediate a variety of biological activities of cells through forming large molecular assemblies via protein-protein interactions. Hence, to understand the function of a particular protein, it is often useful to identify other proteins with which it associates. The two-hybrid system is a widely used yeast-based genetic approach for detecting protein-protein interactions and provides a powerful way of isolating ion channel-associated proteins in an in vivo setting without purifying both proteins. This system is thought to be one of the important techniques for "Proteome" analysis in the post-genomic era. In this article, we describe the yeast two-hybrid assay we have used to identify proteins binding to asic-sensing ion channel ASIC3 and urate transporter 1 (URAT1) and discuss some general and specific considerations about using ion channel proteins in the two-hybrid system.
mesh_terms: D003001:Cloning, Molecular; D007473:Ion Channels; D008565:Membrane Proteins / Q000302:isolation & purification; D011485:Protein Binding; D020543:Proteome / Q000032:analysis; D029701:Saccharomyces cerevisiae Proteins / Q000235:genetics* / Q000302:isolation & purification*; D020798:Two-Hybrid System Techniques
chemical_list: D007473:Ion Channels; D008565:Membrane Proteins; D020543:Proteome; D029701:Saccharomyces cerevisiae Proteins