Products/Services Used | Details | Operation |
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Peptide Synthesis> | coli EMD Millipore Cat#71400 Chemicals, Peptides, and Recombinant Proteins Oregon Green 488 Carboxylic Acid, Succinimidyl Ester, 5 isomer Thermo Fisher Cat #O6147 Rhodamine Red C2 maleimide Thermo Fisher Cat #R6029 Alexa 647 maleimide Thermo Fisher Cat# A20347 Rhodamine Red-X Succinimidyl Ester, 5 isomer Thermo Fisher Cat# R6160 MG132 Proteasome inhibitor fPuc peptide: Ac-ENLACDEVTSTTSSSST-NH2 EMD Millipore Cat#474791 Genscript Pierce et al...., 2009)] and N-terminally labeled with fluorescein was purchased from GenScript, and solubilized in buffer containing 20 mM Tris pH 7. | Get A Quote |
Mutations in the tumor suppressor SPOP (speckle-type POZ protein) cause prostate, breast, and other solid tumors. SPOP is a substrate adaptor of the cullin3-RING ubiquitin ligase and localizes to nuclear speckles. Although cancer-associated mutations in SPOP interfere with substrate recruitment to the ligase, mechanisms underlying assembly of SPOP with its substrates in liquid nuclear bodies and effects of SPOP mutations on assembly are poorly understood. Here, we show that substrates trigger phase separation of SPOP in vitro and co-localization in membraneless organelles in cells. Enzymatic activity correlates with cellular co-localization and in vitro mesoscale assembly formation. Disease-associated SPOP mu... More