Certificate of Analysis

 

Product Name: Recombinant Mouse/Rat TGF-beta 1 (Mammalian)
Catalog Number: M21550

Physical and Chemical Properties
Solubility: Dissolve the lyophilized protein in 4mM HCl. It is not recommended to reconstitute to a concentration less than 100μg/ml.
Storage: Stored at ≤ -20°C, stable for one year after receipt.
Analytical Data
QC Standard: >95%, Endotoxin<0.01 EU/µg
Product Information
Description: Recombinant mouse/rat transforming growth factor β1 is produced by the mammalian expression system and the target gene encoding Ala279-Ser390 is expressed. Measured by its ability to inhibit IL-4-dependent proliferation of TF‑1 human erythroleukemic cells.The ED50 for this effect is 5-25 pg/ml.
   
Stability and Solubility Advice: Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide.
We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details.