Recombinant human Ubiquitin carboxyl-terminal hydrolase 7/USP7 protein Reference: RP10202LQ USP7 is a cysteine protease, belongs to the family of ubiquitin-specific proteases. USP7 was first discovered as a binding enzyme to the Herpes simplex viral protein. Studies have shown that USP7 could deubiquitinate the autoubiquitination of an E3 ligase called HDM2 that promotes ubiquitination and subsequent degradation of p53. The USP7/HDM2/p53 interaction results in higher protein levels of HDM2 and lower levels of p53. Because of its apparent role in different types of pathologies, including lung and liver cancer, it has become a possible target for drug therapies.
Recombinant human Ubiquitin carboxyl-terminal hydrolase 11/USP11 protein Reference: RP10203LQ Deubiquitinating enzymes (DUBs) are proteases that posses the ability to cleave ubiquitin chains or the isopeptide bond that conjugates ubiquitin with a substrate. Human cells have approximately 100 DUBs that play important roles in regulating various cellular events. Usp11 belongs to the ubiquitin-specific protease family. It helps in repairing DNA damage. It has been found to interact with RanBPM, a RanGTP-binding protein.
Recombinant human Ubiquitin carboxyl-terminal hydrolase 16 protein Reference: RP10204LQ USP16 is an active deubiquitinating enzyme (DUB) encoded on chromosome 21, trisomy of which causes Down’s syndrome (DS). USP16 is a phosphoprotein, phosphorylation of USP16 controls its cellular localization, but no effect on its DUB activity. USP16 deubiquitinates histone 2A (H2A), through which USP16 might regulate gene expression and cell cycle progression. Increased USP16 protein levels in people with DS might contribute to the development of certain phenotypes of DS.
Recombinant human Ubiquitin carboxyl-terminal hydrolase 35/USP35 protein Reference: RP10205LQ USP35 is a 1018 amino acid cysteine DUB that was found to be overexpressed in certain breast cancers. Its USP domain ranges from amino acids 425 to 926, with cysteine 450 as the catalytic cysteine residue.
E2 Screening Kit Reference: RP10206K The E2 Screening Kit is developed for identification of the E2 Ub-conjugating enzyme(s) for a specific E3 Ub ligase and/or a protein substrate. This kit contains 29 E2 enzymes.
Di-ubiquitin Explorer Kit Reference: RP10208K This kit contains 5 μg each of linear, K6, K11, K27, K29, K33, K48, and K63-linked diubiquitin, a total of eight different diubiquitin forms. It can be used for determining linkage specificity of deubiquitinating enzymes and polyubiquitin-binding proteins
K48 polyUb Chain-binding Protein Identification / Validation Kit Reference: RP10209K This kit is designed for two purposes: 1) identification of proteins that specially bind K48 polyUb chains in whole cell or tissue lysates; 2) validation of direct interactions between K48 polyUb chains and their binding proteins. The Non-cleavable K48 polyUb chain (2-4) are resistant of deubiquitination when incubating with whole cell or tissue lysates, thus allowing maximally capture proteins that specifically bind K48 polyUb chains. After binding, 6xHis-Non-cleavable K48 polyUb chains and the binding proteins can be enriched by Nickel XPure Agarose Resin (included). The bound proteins and the non-cleavable K48 polyUb chains can be eluted from Ni resin using a buffer containing 250 mM imidazole (included) or by incubating with thrombin (not included). Either of the elution method can significantly reduce the amounts of non-specific binding proteins when compared with elution using SDS sample buffer.
K63 polyUb Chain-binding Protein Identification / Validation Kit Reference: RP10210K This kit is designed for two purposes: 1) identification of proteins that specially bind K63 polyUb chains in whole cell or tissue lysates; 2) validation of direct interactions between K63 polyUb chains and their binding proteins. The non-cleavable 6xHis-tagged K63 polyUb chains (2-4) are resistant of deubiquitination when incubating with whole cell or tissue lysates, thus allowing maximally capture proteins that specifically bind K63 polyUb chains. After binding, the non-cleavable K63 polyUb chains and the binding proteins can be enriched by Nickel XPure Agarose Resin (included). The bound proteins and the non-cleavable K63 polyUb chains can be eluted from Ni resin using a buffer containing 250 mM imidazole (included) or by incubating with thrombin (not included). Either of the elution method can significantly reduce the amounts of non-specific binding proteins when compared with elution using SDS sample buffer.
Sumo2 Conjugation Kit Reference: RP10213K Sumo2 Conjugation Kit is designed for assaying the conjugation of Sumo2 to protein substrates in vitro. In a protein sumoylation reaction, a Sumo protein is first activated by the Sumo activating enzyme SAE1/SAE2 (E1) in an ATP hydrolysis-dependent manner; activated Sumo is then transferred to the Sumo conjugating enzyme Ube2I (E2) by formation of a thiolester bond with the catalytic cysteine residue of Ube2I; Sumo-charged Ube2I can mediate protein sumoylation in the presence of an appropriate Sumo ligase (E3).
Sumo3 Conjugation Kit Reference: RP10214K Sumo3 Conjugation Kit is designed for assaying the conjugation of Sumo3 to protein substrates in vitro. In a protein sumoylation reaction, a Sumo protein is first activated by the Sumo activating enzyme SAE1/SAE2 (E1) in an ATP hydrolysis-dependent manner; activated Sumo is then transferred to the Sumo conjugating enzyme Ube2I (E2) by formation of a thiolester bond with the catalytic cysteine residue of Ube2I; Sumo-charged Ube2I can mediate protein sumoylation in the presence of an appropriate Sumo ligase (E3).
Sumo1, Sumo2, Sumo 3 Conjugation Kit Reference: RP10215K Sumo1, Sumo2, Sumo 3 Conjugation Kit is designed for assaying the conjugation of Sumo1, Sumo2 and Sumo3 to protein substrates in vitro. In a protein sumoylation reaction, a Sumo protein is first activated by the Sumo activating enzyme SAE1/SAE2 (E1) in an ATP hydrolysis-dependent manner; activated Sumo is then transferred to the Sumo conjugating enzyme Ube2I (E2) by formation of a thiolester bond with the catalytic cysteine residue of Ube2I; Sumo-charged Ube2I can mediate protein sumoylation in the presence of an appropriate Sumo ligase (E3).
Ubiquitin Linkage Screening Kit II Reference: RP10218K Ubiquitin Linkage Screening Kit II is designed for two purposes: 1) to identify the ubiquitin lysine residue that is used to link the polyubiquitin chain conjugated on a protein substrate; 2) to determine whether a protein substrate is polyubiquitinated or conjugated with multiple monoubiquitin.