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Catalog Number | orb1494666 |
---|---|
Category | Proteins |
Description | Protransforming Growth Factor-alpha (TGF-alpha), also known as sarcoma growth factor, TGF-type I and ETGF, is a member of the EGF family of cytokines. It is expressed in monocytes, brain cells, keratinocytes and various tumor cells. ProTGF-alpha signals through EGFR and acts synergistically with TGF-beta to promote the proliferation of a wide range of epidermal and epithelial cells. It may function as either a membrane-bound ligand or a soluble ligand. Membrane-bound proTGF-alpha plays a role in cell-cell adhesion and juxtacrine stimulation of adjacent cells. The soluble form of the cytokine is released from the membrane-bound form by proteolytic cleavage and acts as a mitogen for cell proliferation. |
Form/Appearance | Sterile Filtered White lyophilized (freeze-dried) powder. |
MW | 8-10 kDa, observed by reducing SDS-PAGE. |
Protein Sequence | VVSHFNDCPDSHTQFCFHGTCRFLVQEDKPACVCHSGYVGARCEHADLLA |
Source | CHO |
Biological Activity | ED50 < 0.4 ng/ml, measured in a cell proliferation assay using 3T3 cells. |
Endotoxins | < 0.2 EU/μg, determined by LAL method. |
Storage | Lyophilized recombinant Human TGF-alpha remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, Human TGF-alpha Receptor should be stable up to 1 week at 4°C or up to 2 months at -20°C. |
Buffer/Preservatives | Lyophilized after extensive dialysis against PBS. |
Alternative names | Transforming Growth Factor-α, Sacroma growth facto Read more... |
Note | For research use only |
Application notes | Reconstituted in ddH2O or PBS at 100 μg/ml. |
Expiration Date | 6 months from date of receipt. |
≥90% as determined by SDS-PAGE | |
This protein contains the human TGF-α(Val41-Val90) was fused without Tag and expressed in E. coli. |
6.2kDa, observed by reducing SDS-PAGE. | |
Escherichia coli. |
15 kDa, observed by reducing SDS-PAGE. | |
Escherichia coli. |
15~18 kDa, observed by reducing SDS-PAGE. | |
HEK 293 |
15~20 kDa, observed by reducing SDS-PAGE. | |
HEK 293 |
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