Protein Arrays

Efficiently explore protein-protein and protein-ligand interactions—such as for receptor discovery or to screen for auto-antibodies related to cancer or autoimmune disease—with convenient pre-printed or custom protein arrays from RayBiotech.

Why Choose RayBiotech Protein Arrays?

Each protein array we offer is manufactured to our exacting standards on-site in our facilities (Georgia, USA). Our processes and quality standards have been developed over decades and, as the company that pioneered the protein microarray, is based on more experience developing and manufacturing this technology than any other company.

In addition, all of our products and services are backed by a team of expert scientists, all with PhDs in the life sciences, who are ready to help with your scientific, experimental, and logistical questions.

Protein Arrays Versus Antibody Arrays—Which Should I Choose?

If you use the term "protein array" (or protein microarray) interchangeably with "antibody array," you’re not alone. However, it’s important to note that these are different types of arrays that are used in different applications.

Protein arrays consist of immobilized recombinant proteins arrayed on a solid support, such as a membrane or glass slide. They are used to profile serological antibodies as well as to study protein interactions with other proteins, peptides, DNA, and drugs.

Antibody arrays, on the other hand, consist of immobilized antibodies arrayed on a solid support and are used for protein expression profiling.

Learn about profiling protein expression levels with RayBiotech’s antibody arrays>

Answer Critical Protein-Protein Interaction Questions With a Protein Array

Whether you are conducting basic research or drug discovery, protein arrays can speed your studies and enhance your insight.

  • Identify new drug targets.
  • Incubate with ligand to identify the receptor.
  • Find protein binding partners.
  • Profile autoantibodies related to specific diseases.
  • Identify proteins involved in host-pathogen interactions and pathogen cell entry.

Protein Array Collections

  Allergen Cancer Autoimmune Disease Receptor Custom
Use Case Screen IgG and/or IgE levels for specific allergens Screen specific auto-antibodies associated with cancer Screen specific auto-antibodies associated with autoimmune diseases Customize a human receptor protein array Customize a protein array based on your research needs
Data Type Semi-quantitative Semi-quantitative Semi-quantitative Semi-quantitative Semi-quantitative
Sample Type Human serum or plasma Human serum or plasma Human serum or plasma Depends on array Depends on array
Antibody Isotope IgE, IgG IgA, IgG IgG Depends on array Depends on array
Target Number 22 - 48 per slide 30 per slide 33 per slide Choose from over 280 human receptors Custom
Spot Replicate Triplicate Triplicate Triplicate Triplicate (or more) Triplicate (or more)
Solid Support Glass Glass Glass Glass Glass
Detects Foods, mites, fungi (molds), insects, tree pollen, plants Lung cancer SLE, Vasculitis, Celiac disease, Sjogren's syndrome, Arthritis, Systemic sclerosis, Cirrhosis, Hepatitis, Thyroiditis, Polymyositis/Dermatomyositis Depends on array Depends on array
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Protein Arrays


  • Save sample without sacrificing data. You only need 2-25 ul of sample
  • Save time with fast processing times
  • Detect cleaner signals with no interference between immobilized proteins (unlike bead-based multiplex assays)
  • Deepen your findings by simultaneously detecting multiple proteins
  • Expedite your data collection with high-throughput automated processing
  • Customize an array from our list of targets to meet your research objectives

Contents of Kit

  • Glass Chip with Protein Arrays
  • Biotin-conjugated polyclonal secondary antibody
  • Blocking Buffer
  • Streptavidin-Fluorescent dye
  • Wash buffers
  • Manual