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Related Experiment Videos

An NMR approach to structural proteomics.

Adelinda Yee1, Xiaoqing Chang, Antonio Pineda-Lucena

  • 1Ontario Cancer Institute and Department of Medical Biophysics, University of Toronto, 101 College Street, Toronto, ON, Canada M5G 1L7.

Proceedings of the National Academy of Sciences of the United States of America
|February 21, 2002
PubMed
Summary

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This summary is machine-generated.

Structural proteomics using Nuclear Magnetic Resonance (NMR) spectroscopy successfully determined structures for 20% of over 500 small proteins evaluated. This approach aids in assigning functions to conserved hypothetical proteins.

Area of Science:

  • Proteomics
  • Structural Biology
  • Biochemistry

Background:

  • The rapid growth of genomic data necessitates scalable methods for determining protein structures.
  • Structural proteomics aims to elucidate protein structures on a genome-wide scale.
  • Small proteins present unique challenges for structural determination.

Purpose of the Study:

  • To develop and assess an approach for structural proteomics of small proteins using Nuclear Magnetic Resonance (NMR) spectroscopy.
  • To evaluate the feasibility of determining protein structures from multiple organisms on a large scale.
  • To infer functions for conserved hypothetical proteins.

Main Methods:

  • Cloning, expression, and purification of over 500 small proteins from various organisms.

Related Experiment Videos

  • NMR spectroscopy for structure determination.
  • Centralized NMR sample preparation and a distributed approach for data collection and analysis.

    • Main Results:

    • Approximately 20% of the evaluated small proteins were amenable to NMR structure determination.
    • Twelve protein structures were determined as part of this large-scale initiative.
    • Variability in proteomes influenced the success rate of NMR structure determination.

    Conclusions:

    • The described NMR-based approach is effective for structural proteomics of small proteins.
    • This methodology facilitates the functional annotation of conserved hypothetical proteins.
    • The study highlights the potential of NMR spectroscopy for large-scale structural biology projects.