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10.1002/prot.26088

http://scihub22266oqcxt.onion/10.1002/prot.26088
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suck abstract from ncbi


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pmid33893649      Proteins 2021 ; 89 (9): 1158-1166
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  • Tackling Covid-19 using disordered-to-order transition of residues in the spike protein upon angiotensin-converting enzyme 2 binding #MMPMID33893649
  • Yesudhas D; Srivastava A; Sekijima M; Gromiha MM
  • Proteins 2021[Sep]; 89 (9): 1158-1166 PMID33893649show ga
  • The 2019-novel coronavirus also known as severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) is a common threat to animals and humans, and is responsible for the human SARS pandemic in 2019 to 2021. The infection of SARS-CoV-2 in humans involves a viral surface glycoprotein named as spike proteins, which bind to the human angiotensin-converting enzyme 2 (ACE2) proteins. Particularly, the receptor binding domains (RBDs) mediate the interaction and contain several disordered regions, which help in the binding. Investigations on the influence of disordered residues/regions in stability and binding of spike protein with ACE2 help to understand the disease pathogenesis, which has not yet been studied. In this study, we have used molecular-dynamics simulations to characterize the structural changes in disordered regions of the spike protein that result from ACE2 binding. We observed that the disordered regions undergo disorder-to-order transition (DOT) upon binding with ACE2, and the DOT residues are located at functionally important regions of RBD. Although the RBD is having rigid structure, DOT residues make conformational rearrangements for the spike protein to attach with ACE2. The binding is strengthened via hydrophilic and aromatic amino acids mainly present in the DOTs. The positively correlated motions of the DOT residues with its nearby residues also explain the binding profile of RBD with ACE2, and the residues are observed to be contributing more favorable binding energies for the spike-ACE2 complex formation. This study emphasizes that intrinsically disordered residues in the RBD of spike protein may provide insights into its etiology and be useful for drug and vaccine discovery.
  • |*COVID-19 Drug Treatment[MESH]
  • |Angiotensin-Converting Enzyme 2/*metabolism[MESH]
  • |COVID-19/*metabolism[MESH]
  • |Humans[MESH]
  • |Hydrogen Bonding[MESH]
  • |Intrinsically Disordered Proteins/*chemistry/*metabolism[MESH]
  • |Molecular Dynamics Simulation[MESH]
  • |Pliability[MESH]
  • |Protein Binding[MESH]
  • |Spike Glycoprotein, Coronavirus/*chemistry/*metabolism[MESH]


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