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Species of Origin
Human
Expression System
HEK293
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Affinity Tag
His Tag (N-term)
Storage Buffer
Lyophilized from a 0.2 µm filtered solution of PBS, pH 7.0.
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Purity
>95% as determined by SDS-PAGE analysis.
Molecular weight
The protein has a calculated MW of 44.3 kDa.
The protein migrates as approximately 12、40、50 kDa under reducing conditions (SDS-PAGE analysis) corresponding to mature TGFβ1, LAP protein, and inactive latent TGFβ1 respectively due to glycosylation -
Activity
Measure by its ability to inhibit the IL-4 dependent proliferation in TF-1 cells. The ED₅₀ for this effect is < 0.1 ng/mL.
Endotoxin Level
<0.1 EU per 1 μg of the protein by the LAL method.
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Form
Lyophilized
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Specifications
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Background
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Background
The transforming Growth Factors beta (TGF beta) family of cytokines are ubiquitous, multifunctional, and essential to survival. They play the central roles in growth, development, inflammation, repair, and host immunity. The mammalian TGF beta isoforms (TGF beta 1, beta 2 and beta 3) are secreted as potential precursors and possess a variety of cell surface receptors and produces at least two mediate signal transductions.
Synonyms
Transforming Growth Factors beta-1 proprotein
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Uniprot ID
P01137
Sequence Note
Met1-Ser390
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Instruction
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Reconstitution
It is recommended to reconstitute the lyophilized protein in 10 mM HCl to a concentration not less than 200 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at -20°C or lower for long term storage.
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Stability & Storage
This product is stable after storage at:
- -20°C for 12 months in lyophilized state from date of receipt.
- -20°C or -80°C for 1 month under sterile conditions after reconstitution.
Avoid repeated freeze/thaw cycles.
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Publication
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Datasheet & Documents
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Disclaimer:For Research Use Only. Not for use in diagnostic or therapeutic procedures.