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TGF beta 1, Human

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SKU: C01088-1 Category: Tags: , ,

Description

Transforming growth factor beta 1 or TGF-β1 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. In humans, TGF-β1 is encoded by the TGFB1 gene.

Sequence: 
MALDTNYCFSSTEKNCCVRQLYIDFRKDLGWKWIHEPKGYHANFCLGPCPYIWSLDTQYSKVLALYNQHNPGASAAPCCVPQALEPLPIVY
YVGRKPKVEQLSNMIVRSCKCS with polyhistidine tag at the C-terminus

Source:
Escherichia coli

Endotoxin Test:
<0.1 EU per 1 μg of the protein by the LAL method.

Activity:
Measure by its ability to inhibit the IL-4 dependent proliferation in HT-2 cells. The ED50 for this effect is <0.1 ng/mL.
The specific activity of recombinant human TGF beta 1 is approximately >5 x 107 IU/mg.
Measure by its ability to induce proliferation in MCF-7 cells The ED50 for this effect is <3.2 ng/mL.

Purity:
>98% as determined by SDS-PAGE. Ni-NTA chromatography

Formulation:
The protein was lyophilized from a solution containing 1X PBS, pH 8.0.

Reconstitution:
It is recommended to reconstitute the lyophilized protein in sterile H2O to a concentration not less than 100 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved. In some experiments, it recommends to add 10 mM HCl when reconstitute lyophilized protein.

Storage:
Lyophilized protein should be stored at -20°C. Upon reconstitution, protein aliquots should be stored at -20°C or -80°C.

Note:
Please use within one month after protein reconstitution.



Additional information

volume

5 μg, 20 μg, 100 µg

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