Biotinylated Human Complement Factor B Protein, His,Avitag™ (MALS & SPR verified)

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Cat. No. / Size
Price
Qty
CFB-H82E4-25ug
$360.00
CFB-H82E4-200ug
$1449.00
ETA of in-stock products:2 business days

Product Details

  • Synonyms

    AHUS4, ARMD14, BF, BFD, CFAB, CFBD, FB, FBI12, GBG, H2-Bf, PBF2

  • Source

    Biotinylated Human Complement Factor B Protein, His,Avitag (CFB-H82E4) is expressed from human 293 cells (HEK293). It contains AA Thr 26 - Leu 764 (Accession # P00751-1).

    Predicted N-terminus: Thr 26

    Request for sequence
  • Molecular Characterization

    Complement Factor B Structure

    Other Tags and Version Biotin & Other Labeled Version

    This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).

    The protein has a calculated MW of 86.6 kDa. The protein migrates as 100-115 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Labeling

    Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

  • Protein Ratio

    Passed as determined by the HABA assay / binding ELISA.

  • Purity

    >95% as determined by SDS-PAGE.

    >95% as determined by SEC-MALS.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

    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.
  • ACRO Quality Management System

    1. QMS(ISO, GMP)
    2. Quality Advantages
    3. Quality Control Process

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Performance Data

  • SDS-PAGE

    Complement Factor B SDS-PAGE

    Biotinylated Human Complement Factor B Protein, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).

  • SEC-MALS

    Complement Factor B SEC-MALS

    The purity of Biotinylated Human Complement Factor B Protein, His,Avitag (Cat. No. CFB-H82E4) is more than 95% and the molecular weight of this protein is around 80-115 kDa verified by SEC-MALS.

    Report
  • Bioactivity-SPR

     Complement Factor B SPR

    Biotinylated Human Complement Factor B Protein, His,Avitag (Cat. No. CFB-H82E4) immobilized on CM5 Chip can bind Iptacopan (LNP023) with an affinity constant of 22.9 nM as determined in a SPR assay (Biacore 8K) (QC tested).

    Protocol

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Background

Complement factor B, a component of the alternative pathway (AP) of complement activation. Factor B is one of the upstream, proximal components unique to the AP and is essential for the activation of the pathway. It is an integral component that drives the amplification loop. It is cleaved by factor D into 2 fragments: Ba and Bb. Bb, a serine protease, then combines with complement factor 3b to generate the C3 or C5 convertase. It has also been implicated in proliferation and differentiation of preactivated B-lymphocytes, rapid spreading of peripheral blood monocytes, stimulation of lymphocyte blastogenesis and lysis of erythrocytes. Ba inhibits the proliferation of preactivated B-lymphocytes.

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