货号价格

ACV-HM001-100μg / 询价

ACV-HM001-500μg / 询价

ACV-HM001-500μgx2 / 询价

Human Activin A Protein

产品信息(Product Info)
表达区间及表达系统(Source)

Recombinant Human Activin A Protein is expressed from HEK293 without tag. It contains Gly311-Ser426.[Accession | P08476]

分子量大小(Molecular Weight)

The protein has a predicted MW of 12.97 kDa. Due to glycosylation, the protein migrates to 14-15 kDa under reduced (R) condition, and 23-25 kDa under Non reducing (N) condition based on Tris-Bis PAGE result.

内毒素(Endotoxin)

Less than 0.1EU per μg by the LAL method.

纯度(Purity)

> 95% as determined by Tris-Bis PAGE

制剂(Formulation)

Lyophilized from 0.22μm filtered solution in 4mM HCI. Normally 8% trehalose is added as protectant before lyophilization.

重构方法(Reconstitution)

Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in 4mM HCI.

存储(Storage)

-20 to -80°C for 12 months as supplied from date of receipt.
-80°C for 3-6 months after reconstitution.
2-8°C for 2-7 days after reconstitution.
Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

产品数据(Assay Data)
Tris-Bis PAGE

Human Activin A on Tris-Bis PAGE under reduced (R) condition and Non reducing (N) condition. The purity is greater than 95%.

ELISA Data

Immobilized Human Activin A, No Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Human Activin RIIB, His Tag with the EC50 of 21.4ng/ml determined by ELISA (QC Test).

ELISA Data

Immobilized Human Activin A, No Tag at 5μg/ml (100μl/well) on the plate. Dose response curve for Human Activin RIIA, His Tag with the EC50 of 0.23μg/ml determined by ELISA.

Cell Based Assay

Measured by its ability to inhibit proliferation of MPC-11 cells. The ED50 for this effect is < 7 ng/mL (QC Test).

背景(Background)

Activin-A, a member of the TGF-β superfamily, Extensive research over the past decades illuminated fundamental roles for activin-A in essential biologic processes, including embryonic development, stem cell maintenance and differentiation, haematopoiesis, cell proliferation and tissue fibrosis. Activin-A signals through two type I and two type II receptors which, upon ligand binding, activate their kinase activity, phosphorylate the SMAD2 and 3 intracellular signaling mediators that form a complex with SMAD4, translocate to the nucleus and activate or silence gene expression.

分子别名(Synonyms)

INHBA; Activin A;

文献(References)

Morianos I, Papadopoulou G, Semitekolou M, Xanthou G. Activin-A in the regulation of immunity in health and disease. J Autoimmun. 2019 Nov;104:102314. doi: 10.1016/j.jaut.2019.102314. Epub 2019 Aug 13. PMID: 31416681.