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Related Concept Videos

Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

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Related Experiment Video

Updated: May 28, 2026

Probing High-density Functional Protein Microarrays to Detect Protein-protein Interactions
08:07

Probing High-density Functional Protein Microarrays to Detect Protein-protein Interactions

Published on: August 2, 2015

Miniaturized, microarray-based assays for chemical proteomic studies of protein function.

Jonathan M Blackburn1, Aubrey Shoko, Natasha Beeton-Kempen

  • 1Division of Medical Biochemistry, Institute for Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa. jonathan.blackburn@uct.ac.za

Methods in Molecular Biology (Clifton, N.J.)
|October 4, 2011
PubMed
Summary

Custom microarrays offer a simplified method for miniaturized protein and enzyme assays. This approach combines purification and immobilization into one step, streamlining assay development for applications like human protein kinase and cytochrome P450 analysis.

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A Guided Materials Screening Approach for Developing Quantitative Sol-gel Derived Protein Microarrays

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Assay Development

Background:

  • Traditional protein and enzyme function analysis requires extensive scale-up of protein expression and purification, which can be a significant bottleneck.
  • Miniaturized assay formats offer a promising alternative but lack simple, versatile fabrication methods.
  • Developing generic, efficient techniques for miniaturized assays is crucial for advancing high-throughput biological studies.

Purpose of the Study:

  • To demonstrate the adaptation of custom microarrays for simplified protein and enzyme function analysis.
  • To present a facile method for fabricating protein microarrays by combining purification and immobilization into a single step.
  • To illustrate the utility of this approach for creating arrays of human protein kinases and cytochrome P450s.

Main Methods:

  • Fabrication of custom microarrays with integrated protein purification and immobilization.
  • Application of the fabricated arrays to ligand-binding and enzyme turnover assays.
  • Development of data analysis strategies tailored for microarray-based assays.

Main Results:

  • A simplified, single-step procedure for protein purification and immobilization on microarrays was successfully developed.
  • Demonstrated the creation of functional microarrays displaying human protein kinases and human cytochrome P450s.
  • Established methods for performing both ligand-binding and turnover assays on these custom arrays.

Conclusions:

  • Custom microarrays provide a powerful and simplified platform for miniaturized protein and enzyme analysis.
  • The integrated purification-immobilization step significantly reduces the complexity of array fabrication.
  • This methodology facilitates high-throughput screening and functional characterization of diverse protein sets.