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Your Position: Home > All Other Proteins > Activin RIB > ACB-H52H4

Human Activin RIB / ACVR1B Protein, His Tag

  • Synonym
    ACVR1b,ALK4,ACVRLK4,ACTR-IB,SKR2
  • Source
    Human Activin RIB, His Tag (ACB-H52H4) is expressed from human 293 cells (HEK293). It contains AA Ser 24 - Glu 126 (Accession # P36896-1).
    Predicted N-terminus: Ser 24
  • Molecular Characterization
    Online(Ser 24 - Glu 126) P36896-1

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 13.3 kDa. The protein migrates as 16-22 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >90% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    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:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Human Activin RIB, His Tag (Cat. No. ACB-H52H4) SDS-PAGE gel

Human Activin RIB, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.

Bioactivity-BLI
Human_FcRn_Heterodimer_Protein_Bli

Loaded Human TDGF1, Fc Tag (Cat. No. CRO-H5253) on Protein A Biosensor, can bind Human Activin RIB, His Tag (Cat. No. ACB-H52H4) with an affinity constant of 5.6 μM as determined in BLI assay (ForteBio Octet Red96e) (QC Tested).

  • Background
    Activin receptor type-1B (ACVR1B) is also known as Activin receptor-like kinase 4 (ALK-4), Serine/threonine-protein kinase receptor R2 (SKR2), which belongs to the protein kinase superfamily, TKL Ser/Thr protein kinase family and TGFB receptor subfamily. ACVR1B contains one GS domain and one protein kinase domain. The catalytic activity of ACVR1B is “ATP + [receptor-protein] = ADP + [receptor-protein] phosphate”. ACVR1B acts as a transducer of activin or activin like ligands (e.g., inhibin) signals. Activin binds to either ACVR2A or ACVR2B and then forms a complex with ACVR1B. These go on to recruit the R-SMADs SMAD2 or SMAD3. ACVR1B also transduces signals of nodal, GDF-1, and Vg1.
  • References
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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