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. Author manuscript; available in PMC: 2017 Apr 20.
Published in final edited form as: Nature. 2016 Sep 5;538(7625):406–410. doi: 10.1038/nature19794

Extended Data Figure 4. Examples of cryo-EM density.

Extended Data Figure 4

Coils and α-helices from a. core and b. supernumerary subunits. Example β-sheets from c. core PSST subunit and d. supernumerary 39 kDa subunit. Cryo-EM density is shown with the model represented as sticks and coloured by atom with carbon grey, oxygen red, nitrogen blue and sulphur yellow.