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. Author manuscript; available in PMC: 2011 Mar 25.
Published in final edited form as: Science. 2007 Mar 16;315(5818):1565–1568. doi: 10.1126/science.1135844

Fig. 1.

Fig. 1

(A) Crystal structure of the active site of CcO from the bovine heart (13). (B) Model 1a reproduces the key elements of the active site of CcO. (C) Model 2a, in which the phenol is masked as a methyl ether. Model 2a can be treated with dilute acid to yield the iron-only model (2b), which is not shown.

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