Ubiquitin modified with fluorescein via primary amine coupling. This results in multiple fluoresceinated ubiquitin species with modified lysines as well as the N-terminus. Although having a fully functional C-terminus, lysine modification may limit the ability of this reagent to efficiently incorporate into poly-ubiquitin chains.
Quantity: 1mg, lyophilized powder
Stock: Soluble in aqueous buffer or DMSO up to 20 mg/ml.
MW: 8.6 kDa
Purity: > 95% by PAGE