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Related Experiment Videos

Characterization and quantitation of membrane proteomes using multidimensional MS-based proteomic technologies.

Josip Blonder1, Thomas P Conrads, Timothy D Veenstra

  • 1Laboratory of Proteomics and Analytical Technologies, SAIC-Frederick, Inc., National Cancer Institute, PO Box B, Frederick, MD 21702, USA. blonder@ncifcrf.gov

Expert Review of Proteomics
|June 22, 2005
PubMed
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Proteomics aims to systematically characterize all cellular proteins. Recent advancements now enable large-scale analysis of membrane proteins, overcoming previous solubility challenges for comprehensive proteome studies.

Area of Science:

  • Proteomics
  • Cellular Biology

Background:

  • The goal of proteomics is to comprehensively characterize all proteins within a cell or subcellular proteome.
  • Challenges in proteomics include the vast dynamic range of protein expression, post-translational modifications, and physicochemical heterogeneity.
  • Investigating membrane proteins presents unique difficulties due to their differing solubility compared to cytoplasmic proteins.

Purpose of the Study:

  • To advance methods for systematic, large-scale characterization of cellular proteomes.
  • To address the specific challenges in the proteome-scale investigation of membrane proteins.

Main Methods:

  • Development of advanced analytical platforms for proteomic analysis.
  • Methodologies to overcome solubility issues for membrane protein characterization.

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Main Results:

  • Significant progress has been made in characterizing proteins on a proteome-wide scale.
  • The ability to analyze membrane proteins at a scale comparable to soluble proteins has been enhanced.

Conclusions:

  • Systematic characterization of the entire proteome, including membrane proteins, is increasingly achievable.
  • Advancements in analytical techniques are crucial for overcoming proteomic complexities and enabling comprehensive protein analysis.