edoc

Absolute quantification of microbial proteomes at different states by directed mass spectrometry

Alexander Schmidt, and Martin Beck, and Johan Malmström, and Henry Lam, and Manfred Claassen, and David Campbell, and Ruedi Aebersold, . (2011) Absolute quantification of microbial proteomes at different states by directed mass spectrometry. Molecular Systems Biology, Vol. 7 , 510.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A5844438

Downloads: Statistics Overview

Abstract

Over the past decade, liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) has evolved into the main proteome discovery technology. Up to several thousand proteins can now be reliably identified from a sample and the relative abundance of the identified proteins can be determined across samples. However, the remeasurement of substantially similar proteomes, for example those generated by perturbation experiments in systems biology, at high reproducibility and throughput remains challenging. Here, we apply a directed MS strategy to detect and quantify sets of pre-determined peptides in tryptic digests of cells of the human pathogen Leptospira interrogans at 25 different states. We show that in a single LC-MS/MS experiment around 5000 peptides, covering 1680 L. interrogans proteins, can be consistently detected and their absolute expression levels estimated, revealing new insights about the proteome changes involved in pathogenic progression and antibiotic defense of L. interrogans. This is the first study that describes the absolute quantitative behavior of any proteome over multiple states, and represents the most comprehensive proteome abundance pattern comparison for any organism to date.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Services Biozentrum > Proteomics (Schmidt)
UniBasel Contributors:Schmidt, Alexander
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:EMBO
ISSN:1744-4292
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:14 Sep 2012 07:19
Deposited On:14 Sep 2012 06:54

Repository Staff Only: item control page