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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Tuna cytochrome c at 2.0 A resolution. I.Ferricytochrome structure analysis.

The crystal structure of oxidized cytochrome c from tuna hearts has been solved by x-ray diffraction to a resolution of 2.0 A, using four isomorphous heavy atom derivatives. The crystals, space group P43, have 2 independent cytochrome molecules in the asymmetric repeating unit. No significant difference is seen between these 2 molecules, aside from conformations of a few surface side chains. The molecular folding observed is essentially that reported for tuna ferrocytochrome c. In particular, the ring of phenylalanine 83 lies against the heme group and closes the heme crevice, and is not swung out into the surroundings as had been believed from the 2.8 A horse ferricytochrome c structure.[1]

References

  1. Tuna cytochrome c at 2.0 A resolution. I.Ferricytochrome structure analysis. Swanson, R., Trus, B.L., Mandel, N., Mandel, G., Kallai, O.B., Dickerson, R.E. J. Biol. Chem. (1977) [Pubmed]
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