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Your Position: Home > Fc Receptor Proteins > FcRn (FCGRT & B2M) > FCM-H8286

Biotinylated Human FcRn / FCGRT&B2M Heterodimer Protein, His Tag&Strep II Tag, ultra sensitivity (primary amine labeling) (SPR verified)

  • Synonym
    FcRn,FCGRT & B2M
  • Source
    Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (FCM-H8286) is expressed from human 293 cells (HEK293). It contains AA Ala 24 - Ser 297 (FCGRT) & Ile 21 - Met 119 (B2M) (Accession # P55899-1 (FCGRT) & P61769-1 (B2M)). It is the biotinylated form of Human FCGRT&B2M Heterodimer Protein, His Tag&Strep II Tag (SPR & BLI verified) (FCM-H5286).
    Predicted N-terminus: Ala 24(FCGRT) & Ile 21(B2M)
  • Molecular Characterization
    Online(Ala 24 - Ser 297 (FCGRT) & Ile 21 - Met 119 (B2M)) P55899-1 (FCGRT) & P61769-1 (B2M)

    Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling, produced by co-expression of FCGRT and B2M, has a calculated MW of 31.2 kDa (FCGRT) and 13.1 kDa (B2M). Subunit FCGRT is fused with a polyhistidine tag at the C-terminus and subunit Beta-2 microglobulin (B2M) is fused with Strep II-tag at the C-terminus. The reducing (R) protein migrates as 33 kDa (FCGRT) and 13 kDa (B2M) respectively due to glycosylation.

  • Biotinylation
    The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with biotins using standard chemical labeling method. A standard biotin reagent (13.5 angstroms) is used in this product.
  • Biotin:Protein Ratio
    The biotin to protein ratio is 4-6 as determined by the HABA assay.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% 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
Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (Cat. No. FCM-H8286) SDS-PAGE gel

Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

Bioactivity-SPR
Human_FcRn_Heterodimer_Protein_SPR

Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (Cat. No. FCM-H8286) captured on Biotin CAP - Series S sensor Chip can bind Herceptin® with an affinity constant of 0.57 μM as determined in a SPR assay (Biacore 8K) (QC tested).

Bioactivity-BLI
Human_FcRn_Heterodimer_Protein_Bli

Loaded Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (Cat. No. FCM-H8286) on SA Biosensor, can bind Herceptin with an affinity constant of 0.36 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

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