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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...
Applications Of NMR In Biology01:25

Applications Of NMR In Biology

Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics  for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
The...

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NMR-Based Fragment Screening in a Minimum Sample but Maximum Automation Mode
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NMR screening for rapid protein characterization in structural proteomics.

Justine M Hill1

  • 1School of Molecular and Microbial Sciences, University of Queensland, Brisbane, Australia.

Methods in Molecular Biology (Clifton, N.J.)
|June 11, 2008
PubMed
Summary

This study presents efficient methods for producing uniformly Nitrogen-15 labeled proteins for Nuclear Magnetic Resonance (NMR) screening. These techniques aid in early-stage assessment of protein suitability for structural proteomics.

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Area of Science:

  • Structural biology
  • Proteomics
  • Biophysics

Background:

  • High-throughput structure determination relies on identifying proteins suitable for X-ray crystallography and NMR spectroscopy.
  • Nuclear Magnetic Resonance (NMR) screening offers early biophysical insights into protein targets within structural proteomics.
  • Efficient production of labeled proteins is crucial for NMR-based structural studies.

Purpose of the Study:

  • To describe efficient methods for producing uniformly Nitrogen-15 labeled proteins for NMR screening.
  • To detail sample preparation and NMR data acquisition for assessing protein structural characteristics.
  • To evaluate protein suitability for further structural studies using NMR.

Main Methods:

  • Production of uniformly Nitrogen-15 labeled proteins in E. coli using conventional IPTG induction and autoinduction.
  • Sample preparation optimized for NMR analysis.
  • Acquisition of 1D proton (1H) NMR and 2D proton-Nitrogen-15 heteronuclear single quantum coherence (HSQC) spectra.

Main Results:

  • Demonstrated efficient methods for producing labeled proteins suitable for NMR screening.
  • Provided protocols for sample preparation and NMR data acquisition.
  • Established criteria for assessing protein structural characteristics and suitability for structural studies.

Conclusions:

  • Efficient production of labeled proteins is key to advancing structural proteomics.
  • NMR screening provides essential early-stage biophysical data for protein structure determination.
  • The described methods facilitate the assessment of protein targets for structural studies.