PEPperCHIP® CRISPR/Cas Immunogenicity Microarray

Profile antibody responses against selected CRISPR/Cas effector proteins.

The PEPperCHIP® CRISPR/Cas Immunogenicity Microarray includes 5 CRISPR/Cas proteins associated with immunogenicity converted into 5,583 highly overlapping peptides. The microarray chip contains linear 15-mer peptides with a 14-mer overlap (shift 1) in duplicates for full epitope coverage. Moreover, the microarray contains HA and polio positive control peptides.

The microarray can be used to:

  • Screen and identify individuals with preexisting antibodies against Cas9 and other Cas protein variants
  • Identify specific antibody profiles associated with therapeutic efficacy or adverse effects, facilitating the development of predictive biomarkers for CRISPR-Cas9 therapies
  • Optimize gene therapy protocols to enhance the safety and efficacy of CRISPR-based treatments.
  • Follow a longitudinal immune monitoring, tracking the development of antibody responses over time in patients receiving CRISPR-Cas9 therapies
  • Compare the immunogenicity of various Cas9 orthologues and engineered variants
  • Provide robust immunogenicity data to regulatory agencies to support safety and efficacy claims of new CRISPR-based therapeutics
     

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Microarray information

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Microarray content: 5 CRISPR effector proteins associated with immunogenicity

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Peptide length and overlap: 15 aa peptides with peptide-peptide overlap of 14 aa (shift 1)

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Number of peptides / spots: 5,583 / 11,166 (peptides printed in duplicate)

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Positive control: HA (YPYDVPDYAG) and polio (KEVPALTAVETGAT) control peptides (32 and 28 spots each control, respectively)

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Size and format: 3'' x 1'', 75.4 mm x 25.0 mm x 1.0 mm, containing 1 array copy per chip

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Accessories: compatible with 3/1 well PEPperCHIP® Incubation Tray

 

Sample information

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Can be assayed with at least 20 µL serum/plasma or 10-20 µg/mL purified antibody.

 

Estimated delivery time

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1-4 weeks for chip and optional add-on accessories

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6-8 weeks when requested with PEPperMAP® Services.

Documentation

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PEPperCHIP® CRISPR/Cas Immunogenicity Microarray Material Data Sheet [download pdf]

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PEPperCHIP® CRISPR/Cas Immunogenicity Microarray Peptide Map [download xlsx]

 

Learn how to perform the assay­­­

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PEPperCHIP® Immunoassay Protocol [download pdf] [watch video]

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PEPperCHIP® Immunoassay Quickstart Guide [download pdf]

 

Steps

Materials and equipment

We recommend

Immunoassay

Incubation tray

PEPperCHIP® Incubation Tray*

Orbital shaker

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Blocking reagents

BSA, or Rockland Blocking Buffer*

Control antibodies

PEPperCHIP® Control Antibodies

Buffers

PBS, Tween 20

Labelled secondary antibodies

Rockland secondary antibodies*

Data acquisition

Microarray scanner

Innopsys InnoScan® 710/710-IR*
LI-COR Odyssey® scanners*

See a list of compatible scanners

Data analysis

Fluorescence spot intensity quantification software

MAPIX Analyzer by Innopsys

Spreadsheet software

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*used in-house by PEPperPRINT

 

 

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PEPperCHIP® CRISPR/Cas Immunogenicity Microarray

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<s>For off-the-shelf products, see Standard chips and accessories checklist.xlsx for the product description that goes in this section.</s>

<s>475.00 EUR</s>

Excl. tax and shipping costs.

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