Assays & Screening

— Biortus experienced drug discovery team provides a variety of screening options.

TPD platform

Protein degraders can induce the degradation of disease-causing proteins via the ubiquitin-proteasome or lysosomal pathways. Various classes of molecules and methods have emerged for degrader discovery, including PROTACs (proteolysis-targeting chimeras), molecular glues, and selective receptor degraders.

Biortus has developed multiple biochemical, biophysical, and cell-based assays, as well as structural determination techniques, to support protein degrader development and validation. We offer a mature pipeline for degrader development, spanning from gene analysis to assay and structural evaluation.

  • Binary binding assay:

    SPR

    TR-FRET

    ELISA

    FP

    DSF

  • Ternary binding assays:

    AlphaLisa/AlphaScreen

    SPR

    TR-FRET

  • Target ubiquitination assays:

    WB

    TR-FRET

    AlphaLisa/AlphaScreen

    NanoBRET

  • Cellular assays:

    HCS, WB for target degradation

    qPCR for mRNA level detection

    NanoBRET & NanoLuc for PPI and ubiquitination

    CETSA (split NanoLuc)

8 E1 (ubiquitin-activating enzyme)

36 E2 (ubiquitin-conjugating enzyme)

178 E3 (ubiquitin-protein ligase)