Xia, Lisha published the artcileEvaluation of chemical cross-linkers for in-depth structural analysis of G protein-coupled receptors through cross-linking mass spectrometry, Related Products of alcohols-buliding-blocks, the publication is Analytica Chimica Acta (2020), 53-62, database is CAplus and MEDLINE.
Chem. crosslinking would conceivably cause structural disruption of a protein, but few cross-linkers have been fully evaluated in this aspect. Furthermore, integral membrane proteins may differ from soluble proteins in the selection of suitable cross-linkers, which has never been investigated. In this study, we systematically evaluated the impact of five conventional cross-linkers targeting Lys, Asp and Glu, and two Arg-reactive cross-linkers on the structural and functional integrity of two G protein-coupled receptors (GPCRs). Perturbation of the receptor structure and ligand-binding activity was observed, depending on the receptor and crosslinking conditions. In particular, our study demonstrated that the concentrations of PDH and KArGO need to be fine-tuned in order to minimize the structural and functional disturbance of specific GPCRs. A set of amenable cross-linkers was selected to acquire the most comprehensive cross-link maps for two GPCRs. Our in-depth crosslinking mass spectrometry (CXMS) anal. has revealed dynamic features of structural regions in GPCRs that are not observable in the crystal structures. Thus, CXMS anal. of GPCRs using the expanded toolkit would facilitate structural modeling of uncharacterized receptors and gain new insights into receptor-ligand interactions.
Analytica Chimica Acta published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C11H20N2O3, Related Products of alcohols-buliding-blocks.
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