Ubiquitin, K48R K63R, Recombinant, Human (uman Recombinant Ubiquitin-K48R K63R)

Catalog No : USB-220397
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Product name Ubiquitin, K48R K63R, Recombinant, Human (uman Recombinant Ubiquitin-K48R K63R)
Catalog No USB-220397
Supplier’s Catalog No 220397
Supplier US Biologicals
Source antigen Recombinant, E. coli
Reactivity
Cross reactivity
Applications
Molecular weight 8.59
Storage -70°C
Other names
Grade Highly Purified
Purity ~95% (SDS-PAGE, HPLC)
Form Supplied as a liquid in 20mM Tris, pH 7.5, 0.15M sodium chloride, 10% glycerol.
Reactivity life 12 months
Note For reserch purpose only
Purity ~95% (SDS-PAGE, HPLC)
Description Ubiquitin is a small polypeptide that can be conjugated via its C-terminus to amine groups of lysine residue on target proteins. This conjunction is referred to as monoubiquitylation. Additional ubiquitin moieties can be subsequently conjugated to this initial ubiquitin, utilizing any one of the seven lysine residues on the surface of ubiquitin. The formation of these ubiquitin chains is referred to as polyubiquitylation. This tag-free recombinant form of human ubiquitin is engineered to have a single substitution of arginine for lysine at position 48 and 63. Covalent attachment of ubiquitin to other proteins serves various functions, but its major role is to target cellular proteins for destruction. Cellular components that activate, transfer, remove, or simply recognize ubiquitin number in the hundreds, perhaps even in the thousands. In light of this complexity the ubiquitin pathway is ideal for a systems biology approach. Ubiquitin plays a very important role in regulated non-lysosomal ATP dependent protein degradation. The Ub-proteasome proteolytic pathway, which is a complex process, is implicated to be of great importance for regulating numerous cellular processes. Source: Recombinant protein corresponding to human Ubiquitin, expressed in E. coli. Molecular Weight: ~8.59kD Storage and Stability: Aliquot to avoid repeated freezing and thawing and store at -70°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.