reviewAnnual Review of Analytical ChemistryJun 12, 2016BRONZE OA

Progress in Top-Down Proteomics and the Analysis of Proteoforms

Northwestern University

PubMed
Indexed incrossrefpubmed

Abstract

From a molecular perspective, enactors of function in biology are intact proteins that can be variably modified at the genetic, transcriptional, or post-translational level. Over the past 30 years, mass spectrometry (MS) has become a powerful method for the analysis of proteomes. Prevailing bottom-up proteomics operates at the level of the peptide, leading to issues with protein inference, connectivity, and incomplete sequence/modification information. Top-down proteomics (TDP), alternatively, applies MS at the proteoform level to analyze intact proteins with diverse sources of intramolecular complexity preserved during analysis. Fortunately, advances in prefractionation workflows, MS instrumentation, and…

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568
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Authors

3

Topics & keywords

Keywords
  • Proteomics
  • Computational biology
  • Proteome
  • Top-down proteomics
  • Computer science
  • Posttranslational modification
  • Protein function
  • Data science
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