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Related Experiment Videos

Genomic analysis of biochemical function.

E J Grayhack1, E M Phizicky

  • 1Department of Biochemistry and Biophysics, University of Rochester, School of Medicine and Dentistry, 601 Elmwood Avenue, Box 712, Rochester, NY 14642, USA. elizabeth_grayhack@urmc.rochester.edu

Current Opinion in Chemical Biology
|February 13, 2001
PubMed
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Researchers linked gene activity to biochemical functions using genomic protein arrays and mass spectrometry. This approach enables the analysis of the entire proteome to identify genes responsible for specific protein functions.

Area of Science:

  • Proteomics
  • Molecular Biology
  • Biochemistry

Background:

  • Linking genes to their biochemical activities is crucial for understanding cellular functions.
  • Advances in mass spectrometry and affinity purification have improved this linkage.
  • Genomic protein arrays offer a high-throughput method for proteome-wide analysis.

Purpose of the Study:

  • To establish a robust method for linking individual biochemical activities to their cognate genes.
  • To enable the analysis of the entire proteome for biochemical activities.
  • To identify genes responsible for specific protein functions through deconvolution.

Main Methods:

  • Construction of a yeast genomic protein array by fusing open reading frames to glutathione-S-transferase (GST).

Related Experiment Videos

  • Purification and biochemical assay of pools of GST-open-reading-frame proteins.
  • Analysis of the entire proteome for biochemical activities.
  • Deconvolution to identify the specific open reading frame responsible for an activity.
  • Utilizing protein microarrays for high-throughput analysis of immobilized proteins.

    • Main Results:

    • Successfully linked specific biochemical activities to individual genes within the yeast proteome.
    • Demonstrated the feasibility of analyzing the entire proteome for enzymatic functions.
    • Identified genes responsible for various biochemical activities through a deconvolution process.

    Conclusions:

    • Genomic protein arrays combined with biochemical assays provide a powerful tool for proteome-wide functional analysis.
    • This approach facilitates the systematic identification of gene-function relationships.
    • Protein microarrays represent an alternative high-throughput strategy for large-scale protein analysis.