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Ecology and Society: Convergent geographic patterns between grizzly bear population genetic structure and Indigenous language groups in coastal British Columbia, Canada

Ecology and Society: Convergent geographic patterns between grizzly bear population genetic structure and Indigenous language groups in coastal British Columbia, Canada
ecologyandsociety.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from ecologyandsociety.org Daily Mail and Mail on Sunday newspapers.

Fort Collins , United States , University Of Chicago , United Kingdom , Brentwood Bay , British Columbia , Zuid Holland , Slovenia General , Nova Scotia , Hartley Bay , Ocean Falls , Hudson Bay , Monte Carlo , Coahuila De Zaragoza , New York , Province Of British Columbia , University Of Washington , Bella Coola , City Of , Triquet Island , Kyle Artelle , Kate Field , Silva Guimar , Eh Valderrama Sandoval , Gwaii Mclaren , Le Urrego Giraldo ,

Effect of natural mutations of SARS-CoV-2 on spike structure, conformation, and antigenicity

SARS-CoV-2 variants with multiple spike mutations enable increased transmission and antibody resistance. Here, we combine cryo-EM, binding and computational analyses to study variant spikes, including one that was involved in transmission between minks and humans, and others that originated and spread in human populations. All variants showed increased ACE2 receptor binding and increased propensity for RBD up states. While adaptation to mink resulted in spike destabilization, the B.1.1.7 (UK) spike balanced stabilizing and destabilizing mutations. A local destabilizing effect of the RBD E484K mutation was implicated in resistance of the B.1.1.28/P.1 (Brazil) and B.1.351 (South Africa) variants to neutralizing antibodies. Our studies revealed allosteric effects of mutations and mechanistic differences that drive either inter-species transmission or escape from antibody neutralization. ....

New York , United States , United Kingdom , South Africa , Leica Microsystems , Joshua Mendez , Led Eng , Mahira Aragon , Eugene Chua , Rr Core Team , Duke Research Computing , National Institute Of Allergy , Duke Regional Biocontainment Laboratory , Electron Microscopy Sciences , Simons Foundation , Ge Healthcare , National Center , Defense Advanced Projects Agency , National Institutes Of Health , Sera Care Life Sciences , York Structural Biology Center , Common Fund Transformative High Resolution Cryo , Foundation For Statistical Computing , Simons Electron Microscopy Center , Duke University , C Terminal Twinstrep ,