膜杰作
Star Staining
分子别名（Synonym）
TGFB3,ARVD,TGF-beta3
表达区间及表达系统（Source）
Human TGF-beta 3, premium grade (TG3-H5213) is expressed from human 293 cells (HEK293). It contains AA Ala 301 - Ser 412 (Accession # P10600-1).
Predicted N-terminus: Ala 301
It is produced under our rigorous quality control system that incorporates a comprehensive set of tests including sterility and endotoxin tests. Product performance is carefully validated and tested for compatibility for cell culture use or any other applications in the early preclinical stage. When ready to transition into later clinical phases, we also offer a custom GMP protein service that tailors to your needs. We will work with you to customize and develop a GMP-grade product in accordance with your requests that also meets the requirements for raw and ancillary materials use in cell manufacturing of cell-based therapies.
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries no "tag".
The protein has a calculated MW of 12.7 kDa. The protein migrates as 12 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).
内毒素（Endotoxin）
Less than 0.1 EU per μg by the LAL method.
无菌（Sterility）
Negative
支原体（Mycoplasma）
Negative.
纯度（Purity）
>95% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in 50 mM HAC, pH2.8 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Human TGF-beta 3, premium grade on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
活性（Bioactivity）-Bioactivity CELL BASE
Human TGF-beta 3, premium grade (Cat. No. TG3-H5213) inhibits the Human IL-4, premium grade (Cat. No. IL4-H4218) dependent proliferation of TF-1 cells. The EC50 for this effect is 0.0166 ng/mL (Routinely tested).
Protocol
活性（Bioactivity）-ELISA
Immobilized Human TGF-beta 3, premium grade (Cat. No. TG3-H5213) at 2 μg/mL (100 μL/well) can bind Biotinylated Human TGF-beta RII, His,Avitag (Cat. No. TG2-H82E4) with a linear range of 1-10 ng/mL (QC tested).
Protocol
背景（Background）
Transforming growth factor beta 3 ( TGFB3) is also known as TGF-β3, is a polypeptide member of the transforming growth factor beta superfamily of cytokines. It is a secreted protein that performs many cellular functions, including regulates embryogenesis and cell differentiation and is required in various processes such as secondary palate development. TGF-beta 3 is similar with TGF-beta 1 and -beta 2, act as cellular switches to regulate immune function, cell proliferation, and epithelial-mesenchymal transition. TGF-beta-3 is released from LAP by integrins: integrin-binding results in distortion of the LAP chain and subsequent release of the active TGF-beta-3. Once activated following release of LAP, TGF-beta-3 acts by binding to TGF-beta receptors (TGFBR1 and TGFBR2), which transduce signal.
