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Updated: Jul 19, 2026
Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
Published on: November 15, 2017
Proteomic studies of the intrinsically unstructured mammalian proteome
Charles A Galea1, Vishwajeeth R Pagala, John C Obenauer
1Department of Structural Biology, St. Jude Children's Research Hospital, and Department of Molecular Sciences, University of Tennessee Health Sciences Center, Memphis, Tennessee 38163, USA.
Abstract:
Intrinsically unstructured proteins (IUPs) represent an important class of proteins primarily involved in cellular signaling and regulation. The aim of this study was to develop methodology for the enrichment and identification of IUPs. We show that heat treatment of NIH3T3 mouse fibroblast cell extracts at 98 degrees C selects for IUPs. The majority of these IUPs were cytosolic or nuclear proteins involved in cell signaling or regulation. These studies represent the first large-scale experimental investigation of the intrinsically unstructured mammalian proteome.
