Home Biochemistry Kinase Inhibitor Screening In Self-assembled Human Protein Microarrays
Biochemistry JoVE (Open Access) Citable · DOI

Kinase Inhibitor Screening In Self-assembled Human Protein Microarrays

DOI: 10.3791/59886-v
What you'll learn
  • Generate self-assembled protein microarrays (NAPPA) from human DNA templates
  • Screen kinase inhibitors against arrayed proteins using high-throughput detection
  • Measure protein expression and inhibitor binding on microarray slides
Protocol

A detailed protocol for the generation of self-assembled human protein microarrays for the screening of kinase inhibitors is presented.

Difficulty
advanced
Total time
~3–5 days (DNA prep through inhibitor screening and detection)
Biosafety
BSL-1

Steps

1
Prepare and amplify DNA plasmids

Extract and amplify human kinase gene sequences via PCR to generate template DNA for protein array printing.

▶ 01:01
2
Coat slides and prepare array samples

Apply aminosilane coating to glass slides and prepare purified DNA samples for microarray spotting.

▶ 04:00
3
Print microarray and quantify DNA

Spot DNA templates onto coated slides using a microarrayer and verify DNA loading via fluorescence.

▶ 05:29
4
Express proteins in situ on arrays

Perform cell-free transcription–translation directly on printed DNA to generate arrayed human proteins.

▶ 06:24
5
Detect and validate protein expression

Use fluorescent antibodies to confirm successful protein expression at each array spot.

▶ 07:29
6
Screen kinase inhibitors on arrays

Incubate arrayed proteins with tyrosine kinase inhibitors and detect inhibitor binding via immunofluorescence.

▶ 08:23
7
Analyze protein expression results

Quantify and visualize expression levels across the array to assess NAPPA platform performance.

▶ 10:41
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