The bioinformatic identification of proteins with varying levels of post-translational modifications in experimental ischemic stroke in mice

   
Skvortsov V.S.1 , Ivanova Ya.O.1, Voronina A.I.1

1. Institute of Biomedical Chemistry, Moscow, Russia
Section: Experimental Study
DOI: 10.18097/PBMC20216706475      PubMed Id: 34964441
Year: 2021  Volume: 67  Issue: 6  Pages: 475-484
The experimental data obtained by Simats A. et al. (Molecular and Cellular Proteomics, 2020, 19(12), 1921-1936) was analysed using a bioinformatic approach. Original experimental results available in the ProteomeXchange database were obtained using a comprehensive multidomain approach to identify potential blood biomarkers in ischemic stroke in mice. The identification of peptides with post-translational modification (PTM) was performed by us using the raw data (accession code PXD016538). Only phosphorylation and deamination were considered as PTMs. Different combinations of data sets (ischemic tissue with intact tissue, ischemic tissue with control taken from mice after sham surgery, etc.) were compared both in terms of the ratio of abundance for the modified peptide to the unmodified variant and in terms of absolute values of abundance. The most likely change in precisely PTM levels was shown for 27 proteins, which include dynamin, glycogen phosphorylase and 70 kDa heat shock protein.
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Keywords: posttranslational modifications, ischemic stroke, bioinformatics
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Citation:

Skvortsov, V. S., Ivanova, Ya. O., Voronina, A. I. (2021). The bioinformatic identification of proteins with varying levels of post-translational modifications in experimental ischemic stroke in mice. Biomeditsinskaya Khimiya, 67(6), 475-484.
This paper is also available as the English translation: 10.1134/S199075082202007X
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