File:6nb6 prefusion 6m3w postfusion spike.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	07:02, 13 September 2021		768 × 1,536 (382 KB)	Opabinia regalis	{{Information \|Description=Comparison of the pre-fusion (orange, light blue) and post-fusion (red, dark blue) conformations of the SARS-CoV spike protein trimer. In the pre-fusion conformation, the central helix (orange) and heptad repeat 1 (HR1, light blue) are folded back on each other in an antiparallel orientation. In the post-fusion conformation, the central helix (red) and the HR1 sequence (dark blue) reorganize to form an extended trimeric coiled coil. The viral membrane is at the bott...

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