Specifications
K27-linked di-ubiquitin (Ub2) is a diubiquitin linked by a native isopeptide bond between the C-terminal glycine of the distal ubiquitin and the epsilon amino group of lysine 27 on the proximal ubiquitin. The product is generated using chemical ligation. It is a useful substrate for identifying and characterizing deubiquitinating enzymes that cleave the K27-linkage and for structural and binding studies of ubiquitin chain recognition by ubiquitin-associated domains (UBA) or ubiquitin-interacting motifs (UIMs).
Info
Purity | > 95% by HPLC |
Molecular Weight | 17,112 Da |
Physical State | Lyophilized powder |
Recommended Buffer | DMSO or 0.05% HOAc |
Buffer | 20 mM Tris, pH 7.5, 0.15 M NaCl, 1 mM EDTA |
Storage | -80°C, avoid cycles of freeze/thaw |
Stability | 1 year under recommended storage conditions |