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10.1021/acs.analchem.0c02475

http://scihub22266oqcxt.onion/10.1021/acs.analchem.0c02475
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32786452!7440141!32786452
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suck abstract from ncbi


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pmid32786452      Anal+Chem 2020 ; 92 (17): 11520-11524
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  • Advanced Analysis of Biosensor Data for SARS-CoV-2 RBD and ACE2 Interactions #MMPMID32786452
  • Forssen P; Samuelsson J; Lacki K; Fornstedt T
  • Anal Chem 2020[Sep]; 92 (17): 11520-11524 PMID32786452show ga
  • The traditional approach for analyzing interaction data from biosensors instruments is based on the simplified assumption that also larger biomolecules interactions are homogeneous. It was recently reported that the human receptor angiotensin-converting enzyme 2 (ACE2) plays a key role for capturing SARS-CoV-2 into the human target body, and binding studies were performed using biosensors techniques based on surface plasmon resonance and bio-layer interferometry. The published affinity constants for the interactions, derived using the traditional approach, described a single interaction between ACE2 and the SARS-CoV-2 receptor binding domain (RBD). We reanalyzed these data sets using our advanced four-step approach based on an adaptive interaction distribution algorithm (AIDA) that accounts for the great complexity of larger biomolecules and gives a two-dimensional distribution of association and dissociation rate constants. Our results showed that in both cases the standard assumption about a single interaction was erroneous, and in one of the cases, the value of the affinity constant K(D) differed more than 300% between the reported value and our calculation. This information can prove very useful in providing mechanistic information and insights about the mechanism of interactions between ACE2 and SARS-CoV-2 RBD or similar systems.
  • |Algorithms[MESH]
  • |Angiotensin-Converting Enzyme 2[MESH]
  • |Betacoronavirus/*chemistry[MESH]
  • |Humans[MESH]
  • |Interferometry/*statistics & numerical data[MESH]
  • |Kinetics[MESH]
  • |Ligands[MESH]
  • |Peptidyl-Dipeptidase A/chemistry/*metabolism[MESH]
  • |Protein Binding[MESH]
  • |Protein Domains[MESH]
  • |SARS-CoV-2[MESH]
  • |Spike Glycoprotein, Coronavirus/chemistry/*metabolism[MESH]


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