

| Catalog No. | HT334012 |
|---|---|
| Description |
Recombinant Human CBX4 Protein, N-GST & C-His (HT334012) expressed in E. coli. Purity: >90% by SDS-PAGE.
Highlights
|
| Expression system | E. coli |
| Accession | O00257 |
| Protein length | Glu2-Gly73&Gly245-Gln275 |
| Applications | ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress |
| Species | Homo sapiens (Human) |
| Nature | Recombinant |
| Endotoxin level | Please contact with the lab for this information. |
| Purity | >90% as determined by SDS-PAGE. |
| Predicted molecular weight | 40.50 kDa |
| Form | Lyophilized |
| Storage buffer | Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA. |
| Reconstitution | Reconstitute in sterile water for a stock solution. A copy of datasheet will be provided with the products, please refer to it for details. |
| Shipping | In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise. |
| Stability and Storage | Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt. |
| Alternate Names | CBX4, Chromobox protein homolog 4, E3 SUMO-protein ligase CBX4, EC:2.3.2.-, Pc2, Polycomb 2 homolog, hPc2 |
| Background | E3 SUMO-protein ligase CBX4 is a ~61 kDa protein. E3 SUMO-protein ligase that catalyzes sumoylation of target proteins by promoting the transfer of SUMO from the E2 enzyme to the substrate. Also acts as a histone reader, which specifically recognizes and binds histone H3 trimethylated at 'Lys-9' and 'Lys-27' (H3K9me3 and H3K27me3, respectively) via its chromo domain. Catalyzes sumoylation of HNRNPK, a p53/TP53 transcriptional coactivator, hence indirectly regulates p53/TP53 transcriptional activation resulting in p21/CDKN1A expression. Acts as a regulator of brown adipocyte differentiation by mediating sumoylation of PRDM16, thereby preventing PRDM16 ubiquitination and degradation. Monosumoylates ZNF131. 1. Kagey, MH. et al. (2003) Cell 113, 127-37. PMID: 12679040 2. Oh, Y. et al. (2012) The Journal of biological chemistry 287, 17517-17529. PMID: 22467880 3. Pelisch, F. et al. (2012) The Journal of biological chemistry 287, 30789-99. PMID: 22825850 4. Levine, SS. et al. (2002) Molecular and cellular biology 22, 6070-8. PMID: 12167701 5. Maertens, GN. et al. (2009) PloS one 4, e6380. PMID: 19636380 6. Vandamme, J. et al. (2011) Molecular & cellular proteomics : MCP 10, M110.002642. PMID: 21282530 |
| Note | For research use only |
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