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Mini complete and phosstop inhibitory cocktails

Manufactured by Roche

Mini-Complete and PhosSTOP are inhibitory cocktails developed by Roche for use in biochemical and cell-based applications. Mini-Complete provides a mix of protease inhibitors, while PhosSTOP contains a combination of phosphatase inhibitors. These products are intended to prevent the degradation of proteins and the dephosphorylation of phosphoproteins during sample preparation and analysis.

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2 protocols using mini complete and phosstop inhibitory cocktails

1

Ubiquitin-Protease Assay and Reagents

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All chemicals and reagents were from Sigma Aldrich unless otherwise stated. Solvents (except DMSO) were from Fisher (Pittsburg, PA). Other reagents used in this study: PEITC (Acros Organics); Bortezomib (Millennium Pharmaceuticals); Mini-Complete and PhosSTOP inhibitory cocktails (Roche Applied Science); recombinant human K63-linked di-ubiquitin (UC-300), recombinant human His6-USP1/UAF1 complex (E-568; Boston Biochem.); DMEM, glutamax, penicillin/streptomycin (Gibco); trypsin (0.25%), DPBS (Hyclone); cell dissociation buffer (fisher); Bradford dye (Bio-rad); dithiothreitol (GoldBio Tech); PVDF hybond, Amersham ECL Prime WB detection reagent (GE Healthcare Life Sciences); Blue Biofilm (Denville Scientific); ML323 USP1 inhibitor (EMD Millipore); TransIT 2020 transfection reagent (Mirus bio); Pierce protein G magnetic beads (ThermoFisher Scientific); TAMRA-ubiquitin propargylamide (TAMRA-Ub-PA), Cy5-ubiquitin vinyl methyl ester (Cy5-Ub-VME), Biotin-Ahx-Ub-VME, Biotin-Ahx-Ub-PA and Ub-Rh110MP (UbiQ). HA-ubiquitin vinylsulfone (HA-Ub-VS) and HA-Ub-VME were synthesized using standard methods previously described [88 (link)]. The plasmid encoding the HA-Ub(1-75)-intein-chitin binding domain fusion protein was a gift from Prof H. Ploegh of the Whitehead Institute.
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2

Comprehensive Ubiquitin Assay Protocol

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All chemicals and reagents were from Sigma Aldrich unless otherwise stated. Solvents (except DMSO) were from Fisher (Pittsburg, PA). Other reagents used in this study: G5 isopeptidase inhibitor 1 (50-230-7928, Calbiochem); PEITC (Acros Organics); Bortezomib (Millennium Pharmaceuticals); Mini-Complete and PhosSTOP inhibitory cocktails (Roche Applied Science); Bortezomib (LC laboratories); Alamar Blue® (Invitrogen); USP9x, USP7(catalytic domain), UCH-L3, Ubiquitin-AMC, Suc-Leu-Leu-Val-Tyr-AMC, RAP80 UIM Domains Agarose AM-120, and 20S human proteasome (Boston Biochem); normal goat IgG SC-2028 (Santa Cruz); TAMRA-ubiquitin propargylamide and Cy5-ubiquitin vinyl methyl ester (UbiQ); HA-ubiquitin vinylsulfone and HA-ubiquitin vinyl methyl ester were synthesized using standard methods previously described(16 (link)). The plasmid encoding the HA-1–75Ub-Intein-chitin binding domain fusion protein was a gift from Prof H. Ploegh (Whitehead Institute). BaF3 and BaF3/p210 cells were provided by Nathaniel Gray (Harvard University)
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