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10.1126/sciadv.abk2226 http://scihub22266oqcxt.onion/10.1126/sciadv.abk2226 34623907!8500521!34623907     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\34623907.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Sci+Adv 2021 ; 7 (41): eabk2226 Nephropedia Template TP {{tp|p=34623907|t=2021. Transient lipid-bound states of spike protein heptad repeats provide insights into SARS-CoV-2 membrane fusion |pdf=|usr=}}{{34623907}} gab.com Text Transient lipid-bound states of spike protein heptad repeats provide insights into SARS-CoV-2 membrane fusion JO: Sci Adv http://www.kidney.de/pget.php?&tw=1&pmid=34623907 #FOAvip Entry of SARS-CoV-2 into a host cell is mediated by spike, a class I viral fusion protein responsible for merging the viral and host cell membranes. Recent studies have revealed atomic-resolution models for both the postfusion 6-helix bundle (6HB) and the prefusion state of spike. However, a mechanistic understanding of the molecular basis for the intervening structural transition, important for the design of fusion inhibitors, has remained elusive. Using nuclear magnetic resonance spectroscopy and other biophysical methods, we demonstrate the presence of alpha-helical, membrane-bound, intermediate states of spike's heptad repeat (HR1 and HR2) domains that are embedded at the lipid-water interface while in a slow dynamic equilibrium with the postfusion 6HB state. These results support a model where the HR domains lower the large energy barrier associated with membrane fusion by destabilizing the host and viral membranes, while 6HB formation actively drives their fusion by forcing physical proximity. Twit Text FOAVip Transient lipid-bound states of spike protein heptad repeats provide insights into SARS-CoV-2 membrane fusion ????Sci Adv http://www.kidney.de/pget.php?&tw=1&pmid=34623907 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=34623907 #FOAvip English Wikipedia <ref>{{Cite pmid|34623907}}</ref> Transient lipid-bound states of spike protein heptad repeats provide insights into SARS-CoV-2 membrane fusion #MMPMID34623907 Chiliveri SC; Louis JM; Ghirlando R; Bax A Sci Adv 2021[Oct]; 7 (41): eabk2226 PMID34623907show ga Entry of SARS-CoV-2 into a host cell is mediated by spike, a class I viral fusion protein responsible for merging the viral and host cell membranes. Recent studies have revealed atomic-resolution models for both the postfusion 6-helix bundle (6HB) and the prefusion state of spike. However, a mechanistic understanding of the molecular basis for the intervening structural transition, important for the design of fusion inhibitors, has remained elusive. Using nuclear magnetic resonance spectroscopy and other biophysical methods, we demonstrate the presence of alpha-helical, membrane-bound, intermediate states of spike's heptad repeat (HR1 and HR2) domains that are embedded at the lipid-water interface while in a slow dynamic equilibrium with the postfusion 6HB state. These results support a model where the HR domains lower the large energy barrier associated with membrane fusion by destabilizing the host and viral membranes, while 6HB formation actively drives their fusion by forcing physical proximity. äTransient lipid-bound states of spike protein heptad repeats provide i(epmc).pdf DeepDyve Pubget Overpricing