PepSpots™ Peptides on Cellulose

PepSpots™ Peptides on Cellulose or membrane bound peptide arrays are efficient and inexpensive for antibody epitope mapping and protein-protein interaction studies.

Properties of PepSpots™ Membrane Arrays:

  • Membrane-bound peptides synthesized directly on cellulose membranes by SPOT synthesis technology (SPOT peptide synthesis technique)
  • SPOT synthesis is a fast and economic technique for custom peptide synthesis of hundreds of membrane peptides in parellel
  • Membrane-bound peptide arrays (PepSpots™) are used for efficient and inexpensive antibody epitope mapping or protein-protein interaction studies.
  • Easy experimental procedure (like ELISA), inexpensive equipment and flexible array and library formats

The method of choice for fast and reliable antibody epitope mapping and characterization are PepSpots™ Membrane Arrays. However, for high troughput screening with thousands of peptides and projects with unpurified samples (e.g. serum, lysate, blood) we recommend the use of PepStar™ Peptide Microarrays. Our customer support will be glad to help in case of question (

Comparison of PepSpots™ Peptides on Cellulose and PepStar™ Peptide Microarrays

PepSpots™ PepStar™
Peptides attached via C-terminus N-terminus
Peptides purified No Yes
Read-out via Chemiluminescence Fluorescence
Regeneration possible Yes No
Reorder possible from same synthesis No Yes, up to several hundred
Immobilization of protein controls possible No Yes, up to 8 controls
Total incubation volume of diluted sample Depending on number of peptides (several ml) 200 - 300 µl
Applicable to patient samples Limited Yes
Each peptide is displayed 1x 3x
Array surface Cellulose membrane Glass slide

Applications for PepSpots™ Peptides on Cellulose

  • Antibody epitope mapping
  • Functional characterization of mapped epitopes (e.g substitutional or truncation analyses):
    Which amino acids are critical for binding?
    Which amino acids are so called "key-residues”?
  • Characterization of protein-protein contact sites, such as:
    • Receptor-ligand
    • Enzyme-substrate
    • Protein modules involved in signal transduction processes
    • Recognition sequences for heat shock proteins

Benefits of PepSpots™ Peptides on Cellulose

  • Rapid, low-cost and accurate synthesis using robotics (SPOT Technology)
  • Hydrophilic surface of cellulose membranes
  • Minimization of unspecific hydrophobic interactions with target molecule
  • Easy detection using standard ELISA protocols

Testimonials for PepSpots™ Peptides on Cellulose

"Our teams at the Vrije Universiteit Brussel deal with a wide variety of projects in different areas of applied biological sciences. For many of them we are in need of peptide related tools and services ranging from peptide libraries and highly purified peptides to peptide arrays. In our search for an integrated and reliable provider we came across JPT. Meanwhile, we are collaborating with JPT for many years and are very satisfied with the relationship which led to several well received publications. Especially, their unique array technology helped us to enhance our knowledge on different protein protein interactions such as Chaperone-substrate recognition."
Prof. Joost W.H. Schymkowitz & Prof. Frederic Rousseau, VIB Switch Laboratory, Vrije Universiteit Brussel, Belgium

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All production is performed according to ISO 9001:2015 standards

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