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Integration of Residue-Specific Acid Cleavage into Proteomic Workflows

Authors: Steven, Swatkoski; Peter, Gutierrez; Joy, Ginter; Alexey, Petrov; Jonathan D, Dinman; Nathan, Edwards; Catherine, Fenselau;

Integration of Residue-Specific Acid Cleavage into Proteomic Workflows

Abstract

Microwave-accelerated proteolysis using acetic acid has been shown to occur specifically on either or both sides of aspartate residues. This chemical cleavage is applied to the yeast ribosome proteome to evaluate its suitability for incorporation into high-throughput automated workflows. Peptide product mixtures were analyzed using either an HPLC-ESI-LTQ-Orbitrap or an HPLC-MALDI-TOF2. The peptides were readily identified, using MASCOT with a modified enzyme rule, and provided information about 73% of the proteome. Implications are considered of the extended length and the presence of multiple basic residues in these peptides.

Keywords

Proteomics, Spectrometry, Mass, Electrospray Ionization, Proteome, Molecular Sequence Data, Peptide Mapping, Mass Spectrometry, Fungal Proteins, Trypsin, Amino Acid Sequence, Microwaves, Peptides, Ribosomes, Chromatography, High Pressure Liquid

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Powered by OpenAIRE graph
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
31
Top 10%
Top 10%
Top 10%