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Duolink® PLA Control Kit - PPI

Control Kit to reliably detect Protein-Protein Interactions (PPI) with Duolink® PLA

product line



immunofluorescence: suitable
proximity ligation assay: suitable


suitable for fluorescence

shipped in

dry ice

storage temp.


General description

Duolink® PLA Control Kits are intended for use with Duolink® PLA reagents to ensure proper function of reagents and Duolink® PLA staining technique.


Based on proximity ligation assay (PLA), the Duolink® PLA Technology allows for endogenous detection of protein interactions, post-translational modifications, and protein expression levels at the single molecule level in fixed cells.

Duolink® PLA Control Kit - PPI is designed to allows users to gain confidence with the Duolink® PLA technology. This Kit contains glass slides with fixed, treated cells and a specific pair of primary antibodies that will detect interacting proteins and reliably generate PLA signals when used with the complementary Duolink® PLA probes and detection reagents. Analysis is carried out using standard immunofluorescence assay equipment.

This kit will enable the detection of Protein-Protein interactions. The SK-OV-3 cells contain HER2 and EGFR, which show increased interaction upon treatment with EGF. When combined with appropriate Duolink® PLA Reagents, the Control Kit will enable the successful detection of increased HER2 and EGFR protein interactions in the EGF treated cells.

Application note
In the Duolink® PLA Control Kit, the cells and antibodies are provided, and the conditions have been optimized. When combined with the necessary Duolink® PLA reagents, you will have all you need to successfully perform the PLA experiment and obtain positive results.

The Control kit contains Duolink® PLA Control Slides (Cat. No. DUO82202) - two 8 well glass slides with fixed SK-OV3 Human ovarian cancer cells. The cells were treated with EGF, to induce EGFR and HER2 interaction. The Kit also contains one vial of Anti-HER2 antibody produced in rabbit (HPA001383), and one vial of Monoclonal Anti-EGFR antibody produced in mouse (E3138) – the two primary antibodies you need to detect the two interacting protein

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Features and Benefits

  • Reliable PLA signal detecting a protein interaction
  • Gain confidence with the Duolink® PLA Technology
  • Add additional controls to your PLA experiments
  • Increased sensitivity due to rolling circle amplification for low abundant targets
  • No overexpression or genetic manipulation required
  • Relative quantification possible
  • Works with any fluorescence microscope and appropriate filters


This product is comprised of the following:
  • Duolink® PLA Control Slides (DUO82202) - two 8-well chamber slides with EGF treated, pre-fixed SK-OV3 cells.
  • One vial (15μL) of Rabbit anti-ErbB2/HER2 antibody (HPA001383)
  • One vial (25μL) of Mouse anti-EGFR antibody (E3138)

See datasheet for more information.

Other Notes

Other Duolink® reagents needed (30RXN size):
Mouse/Rabbit Duolink® PLA Starter Kit: Red Starter Kit (DUO92101) OR Orange Starter Kit (DUO92102)
PLA Probe pairs (PLUS and MINUS): Anti-Mouse PLUS (DUO92001) and Anti-Rabbit MINUS (DUO92005) or Anti-Mouse MINUS (DUO92004) and Anti-Rabbit PLUS (DUO92002); AND Detection reagents of choice: Orange (DUO92007), Red (DUO92008), FarRed (DUO92013), or Green (DUO92014); AND Wash Buffers (DUO82049) AND Mounting Medium with DAPI (DUO82040).

Legal Information

Duolink is a registered trademark of Sigma-Aldrich Co. LLC

Storage Class Code

11 - Combustible Solids

Certificate of Analysis

Certificate of Origin

Product Information Sheet

Quotes and Ordering

Louise H Jørgensen et al.
The American journal of pathology, 187(2), 457-474 (2016-12-03)
The cytoskeleton is an integral part of skeletal muscle structure, and reorganization of the cytoskeleton occurs during various modes of remodeling. We previously found that the extracellular matrix protein secreted protein acidic and rich in cysteine (SPARC) is up-regulated and
Daniel Antfolk et al.
Proceedings of the National Academy of Sciences of the United States of America, 114(23), E4574-E4581 (2017-05-24)
Notch signaling is a key regulator of angiogenesis, in which sprouting is regulated by an equilibrium between inhibitory Dll4-Notch signaling and promoting Jagged-Notch signaling. Whereas Fringe proteins modify Notch receptors and strengthen their activation by Dll4 ligands, other mechanisms balancing
Timothy L Scott et al.
Molecular carcinogenesis, 56(2), 325-336 (2016-05-06)
Apurinic/apyrimidinic endonuclease 1 (APE1) is an essential protein crucial for repair of oxidized DNA damage not only in genomic DNA but also in mitochondrial DNA. Parkin, a tumor suppressor and Parkinson's disease (PD) associated gene, is an E3 ubiquitin ligase
Franziska Wetzel et al.
Cellular and molecular life sciences : CMLS, 74(2), 373-392 (2016-09-09)
The zonula occludens (ZO)-2 protein links tight junctional transmembrane proteins to the actin cytoskeleton and associates with splicing and transcription factors in the nucleus. Multiple posttranslational modifications control the intracellular distribution of ZO-2. Here, we report that ZO-2 is a
Teng-Jian Zhou et al.
Theranostics, 7(5), 1389-1406 (2017-04-25)
Cancer stem cells (CSCs) are a small subset of malignant cells, possessing stemness, with strong tumorigenic capability, conferring resistance to therapy and leading to the relapse of nasopharyngeal carcinoma (NPC). Our previous study suggested that cyclooxygenase-2 (COX-2) would be a


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