SI4812: DUB-Resistant K48-Linked Di-Ubiquitin


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DUB-resistant, K48-linked Di-ubiquitin (Ub2) contains an amino acid substitution near the C-terminus of the distal ubiquitin that renders it resistant to deubiquitylases (DUBs). DUB-resistant ubiquitin chains are ideal reagents for structural or binding studies with deubiquitylases or other ubiquitin binding proteins. They can also be used as inhibitors or to determine the linkage-specificity of DUBs. The product contains a K48R mutation in the distal ubiquitin and a wild-type C-terminus on the proximal ubiquitin.


Species Human
Source E. coli
Tag None
Molecular Weight 17,123.7 Da
Quantity 100 µg
Concentration Variable
Formulation 20 mM Tris pH 7.5, 150 mM NaCl, 1 mM EDTA
Storage -80°C, avoid freeze/thaw cycles

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