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Invitrogen™ PolarScreen™ Androgen Receptor Competitor Assay Kit, Green Non-distribution product as customer accommodation.

PolarScreen™ Androgen Receptor Competitor Assay Kit, Green

Manufacturer:  Invitrogen™ A15880

Catalog No. A15880

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The PolarScreen™ Androgen Receptor Competitor Assay Kit, Green, provides a sensitive and efficient method for high-throughput, fluorescence polarization-based screening of potential androgen receptor (AR) ligands. The kit uses insect cell-expressed, rat AR-ligand binding domain tagged with glutathione-S-transferase (GST) and histidine (also available separately), plus a novel, high-affinity, fluorescent androgen ligand (Fluormone™ AL Green) in a homogenous, mix-and-read assay format.

This kit produces a green color read-out; a 'red' kit is also available. Both kits suitably determine the IC50s of competitive compounds. Color choice depends on the spectral properties of the compounds to be screened and the available instrumentation. For additional information or assistance contact us at

The PolarScreen Androgen Receptor Competitor Assay is:

  • Complete & ready-to-use out of the box—all reagents included, just add your test compounds
  • High throughput compatible—fluorescence polarization assays in a 384-well plate
  • Convenient—components available in bulk sizes for larger screening needs

    How the Assay Works
    The kit uses the rat AR ligand-binding domain tagged with His and GST [AR-LBD(His-GST)]. AR-LBD(His-GST) is added to a fluorescently-tagged androgen ligand (FluormoneAL Green) in the presence of competitor test compounds in microwell plates. The presence of effective competitors prevents the formation of a AL Green/AR-LBD(His-GST) complex, resulting in a decrease of the polarization value due to ligand displacement caused by a competitor. The shift in polarization value in the presence of test compounds is used to determine relative affinity of test compounds for AR-LBD(His-GST).

    Contact us for bulk quantities or for assistance with other nuclear receptor assay needs, from assay development to library screening and beyond.
  • Specifications


    Competitive Binding Assay, Nuclear Receptor Assay
    1 Tube AR ligand binding domain GST/His-tagged, recombinant protein, 1 tube of fluormone AL green, 2 bottles of screening buffer, 1 tube of 1 M DTT
    PolarScreen™ Androgen Receptor Competitor Assay Kit
    800 x 20μL
    800 x 20μL
    1 Each
    PolarScreen™ Androgen Receptor Competitor Assay Kit, 800 x 20μL assays, Green, Competitive Binding Assay, Nuclear Receptor Assay Validated Application, Dry Ice Storage Consideration, –80°C Immediate Storage, Ready-to-Use, High Throughput Compatible
    384-well plate
    PolarScreen™ Androgen Receptor Competitor Assay Kit
    For research use only. Not for use in diagnostic procedures
    Recombinant Protein (store at –68 to –85°C), 1 tube of Fluormone AL Green (store at –5 to –30°C), 2 bottles of Screening Buffer (store at –5 to –30°C), 1 tube of 1 M DTT (store at –68 to –85°C)
    Screening buffer
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    For Research Use Only. Not for use in diagnostic procedures.