Spin the protein:
See the back half of the ferritin shell: See a single slice through the middle of the shell: Highlight one of the 24 subunits: Highlight one of the four-fold-symmetric channels: Highlight one of the three-fold-symmetric channels: |
One 4-helix subunit from Desulfovibrio desulfuricans bacterioferritin, illustrating the coordination environment at the ferrioxidase site at which Fe(II) is converted to Fe(III) |
One 4-helix subunit from bullfrog ferritin, indicating the ferroxidase site coordination. |
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