Name : Human Latent Activin A Protein
Product Source :
Recombinant Human Latent Activin A Protein is expressed from HEK293 with His tag at the N-terminus. It contains Ser21-Ser426.[Accession | P08476]
Molecular Weight :
The protein has a predicted MW of 13.0 kDa (mature form) and 32.0 kDa (pro form). Due to glycosylation and interchain disulfide bond, the protein migrates to 15 kDa (mature form) and 40-50 kDa (pro form) under reduced (R) condition based on Tris-Bis PAGE result.
Endotoxin Level :
Less than 1EU per μg by the LAL method.
Purity :
> 95% as determined by Tris-Bis PAGE
Formulation :
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
Storage and Stability :
-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.
Product Concentration :
Tris-Bis PAGE Human Latent Activin A on Tris-Bis PAGE under reduced (R) condition. The purity is greater than 95%. Cell Based Assay Measured by its ability to inhibit proliferation of MPC-11 cells. The ED50 for this effect is 30-40 ng/mL.
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.
Synonyms :
INHBA; Activin A;
References & Citations :
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.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
Popular product recommendations:
GLO1/Glyoxalase I Proteinmedchemexpress
CSTL1 ProteinSynonyms
Popular categories:
DDR1
CD367/CLEC4A