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Figure 4
Structural alignment of 1-Cys SiPrx with other archaeal Prxs. (a) Superimposition of 1-Cys SiPrx (blue; PDB entry 6q5v), ApPrx (orange; PDB entry 3a2v) and PhPrx (pink; PDB entry 3w6g) with the N-terminal ends oriented downwards and the C-terminal ends oriented upwards. (b) Enlarged image displaying the conformations of the active-site residues in ApPrx and 1-Cys SiPrx. The peroxidatic CP, which is oriented in front of the other two residues, is colored red and the distances to its S atom are indicated.

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
Volume 75| Part 6| June 2019| Pages 428-434
https://doi.org/10.1107/S2053230X19006472
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