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This protein carries no "tag".
The protein has a calculated MW of 13.0 kDa. The protein migrates as 14-15 kDa under reducing (R) condition, and 23-25 kDa under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
>95% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in 0.056% TFA in 30% ACN with trehalose as protectant.
Contact us for customized product form or formulation.
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:
Human Activin A Protein, Tag Free on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
Immobilized Human Activin A Protein, Tag Free (Cat. No. ACA-H421b) at 5 μg/mL (100 μL/well) can bind Human ACVR2A, Fc Tag (Cat. No. ACA-H5269) with a linear range of 0.4-25 ng/mL (QC tested).
Immobilized Human Activin A Protein, Tag Free (Cat. No. ACA-H421b) at 5 μg/mL (100 μL/well) can bind Biotinylated Human Activin RIIB Protein, His,Avitag (Cat. No. ACB-H82E3) with a linear range of 0.3-5 ng/mL (Routinely tested).
Human Activin RIIB, His Tag (Cat. No. ACB-H5226) immobilized on CM5 Chip can bind Human Activin A Protein, Tag Free (Cat. No. ACA-H421b) with an affinity constant of 0.216 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Human Activin A Protein, Tag Free (Cat. No. ACA-H421b) inhibits the proliferation of MPC-11 cells. The specific activity of Human Activin A Protein, Tag Free is > 5.00×10^2 IU/mg, which is calibrated against WHO Reference Reagent Activin A (Human, Recombinant) NIBSC code: 91/626 (QC tested).
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Price(USD) : $3850.00
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