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Product 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 all available lysines mutated to arginines, except at position 33. This molecule, therefore, can only form polyubiquitin chains of K33 linkage type. 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.
Biovision | 6399 | Human Recombinant Ubiquitin-K33 DataSheet
Biomolecule/Target: N/A
Synonyms: Human Recombinant Ubiquitin-K33
Alternates names: Aldo-keto reductase family 7, member A 2, Aflatoxin B1 aldehyde reductase member 2, AFAR, AFAR1, AFB1-AR1, AKR7.
Taglines: Serves as a substrate for K33 polyubiquitination
NCBI Gene ID #: 8574
NCBI Gene Symbol: AKR7A2
Gene Source: Human
Accession #: O43488
Recombinant: Yes
Source: E. coli
Purity by SDS-PAGEs: 95%
Assay: SDS-PAGE
Purity: N/A
Assay #2: N/A
Endotoxin Level: N/A
Activity (Specifications/test method): N/A
Biological activity: Specific activity is approximately 0.25 0.3 units/mg.
Results:
Binding Capacity: N/A
Unit Definition: N/A
Molecular Weight: 44 kDa
Concentration: 4 mg/ml
Appearance: Liquid
Physical form description: 4 mg/ml in PBS.
Reconstitution Instructions: N/A
Amino acid sequence: MRGSHHHHHH GMASMTGGQQ MGRDLYDDDD KDRWGSELE LSAASRVVSR AAVHCALRSP PPEARALAMS RPPPPRVASV LGTMEMGRRM DAPASAAAVR AFLERGHTEL DTAFMYSDGQ SETILGGLGL GLGGGDCRVK IATKANPWDG KSLKPDSVRS QLETSLKRLQ CPQVDLFYLH APDHGTPVEE TLHACQRLHQ EGKFVELGLS NYASWEVAEI CTLCKSNGWI LPTVYQGMYN ATTRQVETEL FPCLRHFGLR FYAYNPLAGG LLTGKYKYED KDGKQPVGRF FGNSWAETYR NRFWKEHHFE AIALVEKALQ AAYGASAPSV TSAALRWMYH HSQLQGAHGD AVILGMSSLE QLEQNLAATE EGPLEPAVVD AFNQAWHLVA HECPNYFR
