ActiveMax® Human TGFB1, Tag Free (TG1-H4212) is expressed from human 293 cells (HEK293). It contains AA Ala 279 - Ser 390 (Accession # P01137-1).
Predicted N-terminus: Ala 279
This protein carries no "tag".
The protein has a calculated MW of 12.8 kDa (monomer). the protein migrates as 14 kDa (monomer) under reducing (R) condition, and 25 kDa (Dimer) under non-reducing (NR) condition (SDS-PAGE).
Less than 1.0 EU per μg by the LAL method.
>95% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in 0.085% TFA in 30% ACN. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
This product does not contains polyhis tag, but there exists extremely low level of polyhis tag which might interfere with your assay when using together with anti-his tag secondary antibody.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
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 12 months under sterile conditions after reconstitution.
ActiveMax® Human TGFB1, Tag Free on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of ActiveMax® Human TGFB1, Tag Free(Cat. No. TG1-H4212) was more than 85% and the molecular weight of this protein is around 100-110 kDa verified by SEC-MALS.
Immobilized ActiveMax® Human TGFB1, Tag Free (Cat. No. TG1-H4212) at 2 μg/mL (100 μL/well) can bind Human TGFBR2, Fc Tag (Cat. No. TG2-H5252) with a linear range of 0.2-2 ng/mL (QC tested).
活性（Bioactivity）-Cell based assay
ActiveMax® Human TGFB1, Tag Free (Cat. No. TG1-H4212) inhibits the IL-4-dependent proliferation of TF-1 cells. The ED50 for this effect is 0.43-0.91 ng/mL (Routinely tested).
Authors: Cirka H, et al.
Journal: Biophys J 2016
Application: Cell Culture
Transforming growth factor beta 1 ( TGFB1) is also known as TGF-β1, CED, DPD1, TGFB. is a polypeptide member of the transforming growth factor beta superfamily of cytokines. It is a secreted protein that performs many cellular functions, including the control of cell growth, cell proliferation, cell differentiation and apoptosis. The TGFB1 protein helps control the growth and division (proliferation) of cells, the process by which cells mature to carry out specific functions (differentiation), cell movement (motility), and the self-destruction of cells (apoptosis). The TGFB1 protein is found throughout the body and plays a role in development before birth, the formation of blood vessels, the regulation of muscle tissue and body fat development, wound healing, and immune system function. TGFB1 is particularly abundant in tissues that make up the skeleton, where it helps regulate bone growth, and in the intricate lattice that forms in the spaces between cells (the extracellular matrix). Within cells, this protein is turned off (inactive) until it receives a chemical signal to become active. TGFB1 plays an important role in controlling the immune system, and shows different activities on different types of cell, or cells at different developmental stages. Most immune cells (or leukocytes) secrete TGFB1. TGFB1 has been shown to interact with TGF beta receptor 1, LTBP1, YWHAE, EIF3I and Decorin.