Recombinant Human TGF beta 3 protein(N-His)(active)
SKU: PKSH034198-100
Recombinant Human TGF beta 3 protein(N-His)(active)
| SKU # | PKSH034198 |
| Expression Host | E.coli |
Description
| Synonyms | ARVD, ARVD1, LDS5, RNHF, TGF-B3, TGFB3 |
| Species | Human |
| Expression Host | E.coli |
| Sequence | Ala 301-Ser 412 |
| Accession | P10600 |
| Calculated Molecular Weight | 13.7 kDa |
| Observed Molecular Weight | 13 kDa |
| Tag | C-His |
| Bio-activity | Measure by its ability to inhibit IL-4-induce proliferation in HT-2 cells. The ED50 for this effect is <50 pg/mL. The specific activity of recombinant human TGF beta 3 is > 2 x 107 IU/mg. |
Properties
| Purity | > 98 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 0.1 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 sterile 20 mM sodium citrate, 0.2 M NaCl, pH 3.5. 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
TGF-beta 3 (transforming growth factor-beta 3) is a member of a TGF-beta superfamily subgroup that is defined by their structural and functional similarities. TGF-beta 3 and its closely related proteins, TGF-beta 1 and beta 2, act as cellular switches to regulate immune function, cell proliferation, and epithelial-mesenchymal transition. The non-redundant biological effects of TGF-beta 3 include involvement in palatogenesis, chondrogenesis, and pulmonary development. Rat TGF-beta 3 cDNA encodes a 412 amino acid (aa) precursor that contains a 23 aa signal peptide and a 389 aa proprotein. TGF-beta 3 is secreted as a latent complex. This latent form of TGF-beta 3 is activated by integrins, thrombospondin-1, plasmin, and matrix metalloproteases. It can also be activated by extreme pH and reactive oxygen species. TGF-beta 3 binds with high affinity to TGF-beta RII, a type II serine/threonine kinase receptor. This receptor then phosphorylates and activates type I serine/threonine kinase receptors, TGF- beta RI or ALK-1, to modulate transcription through Smad phosphorylation. The divergent biological effects exerted by individual TGF-beta isoforms is dependent upon the recruitment of co-receptors (TGF-beta RIII and endoglin) and the subsequent initiation of Smad-dependent or -independent signaling pathways.