Recombinant Human cyclin D1/Ccnd1 protein (His tag)
SKU: PDEH100267-100
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Recombinant Human cyclin D1/Ccnd1 protein (His tag)
SKU # | PDEH100267 |
Expression Host | E. coli |
Description
Synonyms | B cell leukemia 1;BCL 1;ccnd1;Cd1;Cyl 1;G1/S specific cyclin D1;PRAD1 |
Species | Human |
Expression_host | E.coli |
Sequence | Met 1-Ile 295 |
Accession | P25322 |
Mol_Mass | 32.3 kDa |
AP_Mol_Mass | 39 kDa |
Tag | N-His |
Bio_Activity | Not validated for activity |
Properties
Purity | > 95 % as determined by reducing SDS-PAGE. |
Endotoxin level | Please contact us for more information. |
Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
Formulation | Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
Reconstitution | It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis |
Background
Activity of the cyclin-dependent kinases CDK4 and CDK6 is regulated by T-loop phosphorylation, by the abundance of their cyclin partners (the D-type cyclins), and by association with CDK inhibitors of the Cip/Kip or INK family of proteins. The inactive ternary complex of cyclin D/CDK4 and p27 Kip1 requires extracellular mitogenic stimuli for the release and degradation of p27 concomitant with a rise in cyclin D levels to affect progression through the restriction point and Rb-dependent entry into S-phase. The active complex of cyclin D/CDK4 targets the retinoblastoma protein for phosphorylation, allowing the release of E2F transcription factors that activate G1/S-phase gene expression. Levels of cyclin D protein drop upon withdrawal of growth factors through downregulation of protein expression and phosphorylation-dependent degradation.