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Your Position: Home > Protein > STEAP1 > ST1-H5286

Human STEAP1 Full Length Protein, Twin-Strep,His Tag (Nanodisc)

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  • Synonym
    STEAP1, PRSS24, STEAP
  • Source
    Human STEAP1 Full Length Protein, Twin-Strep,His Tag(ST1-H5286) is expressed from human 293 cells (HEK293). It contains AA Glu 2 - Leu 339 (Accession # Q9UHE8-1).
    Predicted N-terminus: Met
  • Molecular Characterization
    STEAP1 Structure

    This protein carries a twin strep tag at the N-terminus and a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 44.7 kDa.

    Nanodiscs are a new class of model membranes that are being used to solubilize and study a range of integral membrane proteins and membrane-associated proteins. The Nanodisc bilayer is bounded by a membrane scaffold protein coat that confers enhanced stability and a narrow particle size distribution.

    The nanodisc assembles from a mixture of full length membrane protein in detergent, phospholipid micelles and membrane scaffold protein upon removal of the detergent.

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

    >90% as determined by SDS-PAGE.

  • Formulation

    Supplied as 0.2 μm filtered solution in 20 mM HEPES, 150 mM NaCl, pH7.5 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • Shipping

    This product is supplied and shipped with dry ice, please inquire the shipping cost.

  • Storage

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. The product MUST be stored at -70°C or lower upon receipt;
    2. -70°C for 3 months under sterile conditions.
*The isotype control of empty/mock nanodisc (Cat. No. APO-H51H3) is sold separately and not included in protein, you can follow this link for product information.
Bioactivity-ELISA
 STEAP1 ELISA

Immobilized Human STEAP1 Full Length Protein, Twin-Strep,His Tag (Cat. No. ST1-H5286) at 5 μg/mL (100 μL/well) can bind Vandortuzumab biosimilar with a linear range of 0.005-0.156 μg/mL (QC tested).

Bioactivity-SPR
 STEAP1 SPR

Monoclonal Anti-STEAP1 Antibody, Human IgG1 (AM342) captured on Protein A Chip can bind Human STEAP1 Full Length Protein, Twin-Strep,His Tag (Cat. No. ST1-H5286) with an affinity constant of 8.04 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).

Bioactivity-FACS
 STEAP1 FACS

Non-specificity of Human STEAP1 Protein, Twin-Strep, His Tag (Nanodisc) (Cat. No. ST1-H5286) binding to CD3+T cells present in human PBMC. Human PBMCs were simultaneously stained with FITC-labeled anti-CD3 antibody and Human STEAP1 Protein, Twin-Strep,His Tag (Nanodisc) (5e5 cells were stained with 100 μL of 3 μg/mL of Human STEAP1 Protein, Twin-Strep,His Tag), washed and then analyzed with FACS. Both FITC and PE positive signals was used to evaluate the non-specific binding activity to human CD3+ cells (QC tested).

  • Background
    Six-transmembrane epithelial antigen of the prostate 1 (STEAP1) is an integral membrane protein that is highly up-regulated on the cell surface of several human cancers, making it a promising therapeutic target to manage these diseases. It shares sequence homology with three enzymes (STEAP2-STEAP4) that catalyze the NADPH-dependent reduction of iron(III). Taking into account its high specificity and overexpression in human cancers, STEAP1 is nowadays a promising candidate to be imposed as a therapeutic target.
  • Clinical and Translational Updates

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