STUB1 protein is an E3 ubiquitin protein ligase that cooperates with ATXN3 to regulate ubiquitin chain length on substrates and prevent chain extension. It ubiquitinates NOS1 through Hsp70/Hsp40 and regulates chaperone complexes (Hsp70, Hsc70, Hsp90) . STUB1 Protein, Human is the recombinant human-derived STUB1 protein, expressed by E. coli , with tag free.
