Thermo Fisher Scientific IL-4 Human ProcartaPlex Simplex Kit

Invitrogen™ IL-4 Human ProcartaPlex™ Simplex Kit

The Human IL-4 Simplex ProcartaPlex Kit measures IL-4 protein and is designed to be combinable with other Simplex kits, allowing you to create your own multiplex panel utilizing Luminex xMAP technology for protein detection and quantitation.
When combining multiple Simplex kits (i.e., when not using a pre-configured Multiplex Panel), only one buffer kit (sold separately) is needed for each assay plate regardless of plex size.

About ProcartaPlex Assays for the Luminex Platform

ProcartaPlex immunoassays are based on the principles of a sandwich ELISA, using two highly specific antibodies binding to different epitopes of one protein to quantitate all protein targets simultaneously using a Luminex instrument.
ProcartaPlex multiplex assays require as little as 25 μL of plasma or serum, or 50 μL of cell culture supernatant, and just four hours to obtain analyzed results.

• More results per sample — measure multiple protein targets simultaneously in a single 25–50 μL sample
• Well-established Luminex technology — highly referenced multiplexing platform for protein detection and quantitation

ProcartaPlex assays utilize Luminex xMAP (multianalyte profiling) technology for the simultaneous detection and quantitation of up to 80 protein targets in a single 25–50 μL sample from plasma, serum, cell culture supernatants, and other bodily fluids.

The Luminex beads in the ProcartaPlex assay are internally dyed with precise proportions of red and infrared fluorophores to create spectrally unique signatures that can be identified by Luminex xMAP detection systems (e.g., Luminex 200, FLEXMAP 3D, and MAGPIX).
Similar to a sandwich ELISA, the ProcartaPlex assay uses matched antibody pairs to identify the protein of interest. In a multiplexed assay, each spectrally unique bead is labeled with antibodies specific for a single target protein, and bound proteins are identified with biotinylated antibodies and streptavidin–R-phycoerythrin (RPE).

The key difference between a ProcartaPlex assay and ELISA is that the capture antibody in the ProcartaPlex assay is conjugated to a bead and not adsorbed to the microplate well, allowing reagents to remain free-floating in solution.
Detection is performed by Luminex instruments (e.g., Luminex 200) using dual lasers — one to identify bead signatures and another to quantify RPE fluorescence proportional to protein concentration.

ProcartaPlex multiplex assays can profile more target proteins using significantly less sample in the same time required for a traditional sandwich ELISA.

ProcartaPlex multiplex panels are available across six species (human, mouse, rat, nonhuman primate, porcine, and canine).
For more information, visit thermofisher.com/procartaplex.

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