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PTM cross-talk

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4 papers 0 to 25 followers
https://www.readbyqxmd.com/read/23781231/it-takes-two-to-tango-ubiquitin-and-sumo-in-the-dna-damage-response
#1
Serena Bologna, Stefano Ferrari
The complexity of living cells is primarily determined by the genetic information encoded in DNA and gets fully disclosed upon translation. A major determinant of complexity is the reversible post-translational modification (PTM) of proteins, which generates variants displaying distinct biological properties such as subcellular localization, enzymatic activity and the ability to assemble in complexes. Decades of work on phosphorylation have unambiguously proven this concept. In recent years, the covalent attachment of Ubiquitin or Small Ubiquitin-like Modifiers (SUMO) to amino acid residues of target proteins has been recognized as another crucial PTM, re-directing protein fate and protein-protein interactions...
2013: Frontiers in Genetics
https://www.readbyqxmd.com/read/24366814/evolution-and-functional-cross-talk-of-protein-post-translational-modifications
#2
REVIEW
Pedro Beltrao, Peer Bork, Nevan J Krogan, Vera van Noort
Protein post-translational modifications (PTMs) allow the cell to regulate protein activity and play a crucial role in the response to changes in external conditions or internal states. Advances in mass spectrometry now enable proteome wide characterization of PTMs and have revealed a broad functional role for a range of different types of modifications. Here we review advances in the study of the evolution and function of PTMs that were spurred by these technological improvements. We provide an overview of studies focusing on the origin and evolution of regulatory enzymes as well as the evolutionary dynamics of modification sites...
2013: Molecular Systems Biology
https://www.readbyqxmd.com/read/24441143/system-level-dynamics-of-post-translational-modifications
#3
REVIEW
Aaron S Gajadhar, Forest M White
Attempts to characterize cellular behaviors with static, univariate measurements cannot fully capture biological complexity and lead to an inadequate interpretation of cellular processes. Significant biological insight can be gleaned by considering the contribution of dynamic protein post-translational modifications (PTMs) utilizing systems-level quantitative analysis. High-resolution mass spectrometry coupled with computational modeling of dynamic signal-response relationships is a powerful tool to reveal PTM-mediated regulatory networks...
August 2014: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/25605461/systematic-characterization-and-prediction-of-post-translational-modification-cross-talk
#4
Yuanhua Huang, Bosen Xu, Xueya Zhou, Ying Li, Ming Lu, Rui Jiang, Tingting Li
Post-translational modification (PTM)(1) plays an important role in regulating the functions of proteins. PTMs of multiple residues on one protein may work together to determine a functional outcome, which is known as PTM cross-talk. Identification of PTM cross-talks is an emerging theme in proteomics and has elicited great interest, but their properties remain to be systematically characterized. To this end, we collected 193 PTM cross-talk pairs in 77 human proteins from the literature and then tested location preference and co-evolution at the residue and modification levels...
March 2015: Molecular & Cellular Proteomics: MCP
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