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Open AccessJournal ArticleDOI

A Novel Proteomic Screen for Peptide-Protein Interactions

Waltraud X. Schulze, +1 more
- 12 Mar 2004 - 
- Vol. 279, Iss: 11, pp 10756-10764
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TLDR
The authors' data are consistent with a change in the role of Sos from Ras-dependent signaling to actin remodeling/endocytic signaling events by a proline-SH3 domain switch.
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This article is published in Journal of Biological Chemistry.The article was published on 2004-03-12 and is currently open access. It has received 318 citations till now. The article focuses on the topics: SH3 domain & Stable isotope labeling by amino acids in cell culture.

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Citations
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Lysine Acetylation Targets Protein Complexes and Co-Regulates Major Cellular Functions

TL;DR: A proteomic-scale analysis of protein acetylation suggests that it is an important biological regulatory mechanism and the regulatory scope of lysine acetylations is broad and comparable with that of other major posttranslational modifications.
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Global, in vivo, and site-specific phosphorylation dynamics in signaling networks.

TL;DR: A general mass spectrometric technology is developed and applied for identification and quantitation of phosphorylation sites as a function of stimulus, time, and subcellular location to provide a missing link in a global, integrative view of cellular regulation.
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Exponentially Modified Protein Abundance Index (emPAI) for Estimation of Absolute Protein Amount in Proteomics by the Number of Sequenced Peptides per Protein

TL;DR: It is reported that PAI values obtained at different concentrations of serum albumin show a linear relationship with the logarithm of protein concentration in LC-MS/MS experiments, and the values of emPAI are suggested that they should be reported in large scale proteomic identification projects.
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Mass spectrometry-based proteomics turns quantitative.

TL;DR: Two recently developed methodologies offer the opportunity to obtain quantitative proteomic information by comparing the signals from the same peptide under different conditions, and stable isotope labels facilitates direct quantification from the mass spectra.
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The ABC's (and XYZ's) of peptide sequencing

TL;DR: Proteomics is an increasingly powerful and indispensable technology in molecular cell biology as discussed by the authors, which can be used to identify the components of small protein complexes and large organelles, to determine post-translational modifications and in sophisticated functional screens.
References
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Journal ArticleDOI

Probability-based protein identification by searching sequence databases using mass spectrometry data.

TL;DR: A new computer program, Mascot, is presented, which integrates all three types of search for protein identification by searching a sequence database using mass spectrometry data, and the scoring algorithm is probability based.
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Stable isotope labeling by amino acids in cell culture, SILAC, as a simple and accurate approach to expression proteomics.

TL;DR: SILAC is a simple, inexpensive, and accurate procedure that can be used as a quantitative proteomic approach in any cell culture system and is applied to the relative quantitation of changes in protein expression during the process of muscle cell differentiation.
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Quantitative analysis of complex protein mixtures using isotope-coded affinity tags

TL;DR: An approach for the accurate quantification and concurrent sequence identification of the individual proteins within complex mixtures based on isotope-coded affinity tags and tandem mass spectrometry is described.
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A comprehensive analysis of protein–protein interactions in Saccharomyces cerevisiae

TL;DR: Examination of large-scale yeast two-hybrid screens reveals interactions that place functionally unclassified proteins in a biological context, interactions between proteins involved in the same biological function, and interactions that link biological functions together into larger cellular processes.
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