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The 90-kDa heat shock protein (Hsp90) is a highly conserved and abundant cytosolic homodimeric molecular chaperone (1). Hsp90 is distinguished from other chaperones in that most of its known substrates are signal transduction proteins, non activated steroid hormone receptors, several protooncogenic tyrosine, serine/threonine kinases and actin (2-3). Two isoforms which correspond to the major and minor isoform, (Hsp90-
![N/A HSP90 beta [Biotin]](http://images.novusbio.com/fullsize/dy32861-05_human-hsp90-beta-duoset-elisa-5-plate-189202492947..png)
