![Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41467-021-27350-0/MediaObjects/41467_2021_27350_Fig2_HTML.png)
Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications
![Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41467-022-28324-6/MediaObjects/41467_2022_28324_Fig5_HTML.png)
Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications
![Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41467-021-27350-0/MediaObjects/41467_2021_27350_Fig4_HTML.png)
Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications
![Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41467-021-27350-0/MediaObjects/41467_2021_27350_Fig6_HTML.png)
Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications
![Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41467-022-28324-6/MediaObjects/41467_2022_28324_Fig1_HTML.png)
Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications
![A Kappa Diffractometer for Intermediate X-ray Energies at APS Beamline 29-ID | Advanced Photon Source A Kappa Diffractometer for Intermediate X-ray Energies at APS Beamline 29-ID | Advanced Photon Source](https://www.aps.anl.gov/sites/www.aps.anl.gov/files/APS-Uploads/kappa%20F1_BODY.jpg)
A Kappa Diffractometer for Intermediate X-ray Energies at APS Beamline 29-ID | Advanced Photon Source
![Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41467-021-27350-0/MediaObjects/41467_2021_27350_Fig3_HTML.png)
Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM | Nature Communications
![Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41467-022-28324-6/MediaObjects/41467_2022_28324_Fig4_HTML.png)
Structural and biochemical rationale for enhanced spike protein fitness in delta and kappa SARS-CoV-2 variants | Nature Communications
![RCSB PDB - 7TEZ: Cryo-EM structure of SARS-CoV-2 Kappa (B.1.617.1) spike protein in complex with human ACE2 (focused refinement of RBD and ACE2) RCSB PDB - 7TEZ: Cryo-EM structure of SARS-CoV-2 Kappa (B.1.617.1) spike protein in complex with human ACE2 (focused refinement of RBD and ACE2)](https://cdn.rcsb.org/images/structures/7tez_model-1.jpeg)