Total Price: $0.00
Contact Information
Recombinant Human SMAD4 Protein (His Tag)
SKU: PKSH033066-50
Recombinant Human SMAD4 Protein (His Tag)
| SKU # | PKSH033066 |
| Expression Host | E.coli |
Description
| Synonyms | DPC4, Deletion Target in Pancreatic Carcinoma 4, MAD Homolog 4, MADH4, Mothers Against DPP Homolog 4, Mothers Against Decapentaplegic Homolog 4, SMAD 4, SMAD Family Member 4, SMAD4, Smad4, hSMAD4 |
| Species | Human |
| Expression Host | E.coli |
| Sequence | Met 1-Asp552 |
| Accession | Q13485 |
| Calculated Molecular Weight | 61.5 kDa |
| Observed Molecular Weight | 62 kDa |
| Tag | C-His |
| Bio-activity | Not validated for activity |
Properties
| Purity | > 80 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
| 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 a 0.2 μm filtered solution of 20mM Tris-HCl, pH 8.0. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
SMAD Family Member 4 (SMAD4) is a cytoplasmic protein that belongs to the Dwarfin/SMAD family. SMAD4 contains one MH1 (MAD homology 1) domain and one MH2 (MAD homology 2) domain. It is the component of the heterotrimeric SMAD2/SMAD3-SMAD4 complex that forms in the nucleus and is required for the TGF-mediated signaling. SMAD4 promotes binding of the SMAD2/SMAD4/FAST-1 complex to DNA and provides an activation function required for SMAD1 or SMAD2 to stimulate transcription. SMAD4 may act as a tumor suppressor. It positively regulates PDPK1 kinase activity by stimulating its dissociation from the 14-3-3 protein YWHAQ which acts as a negative regulator. Mutations or deletions in SMAD4 have been shown to result in pancreatic cancer, juvenile polyposis syndrome, and hereditary hemorrhagic telangiectasia syndrome.