Figure 3 | Scientific Reports

Figure 3

From: The room temperature crystal structure of a bacterial phytochrome determined by serial femtosecond crystallography

Figure 3

Comparison of LowT and SFX structures to earlier published PAS-GAF structures.

(a) Comparison of the biliverdin conformation and cystein24 thioether linkage of LowT and SFX structures with previously reported PAS-GAF structures 4IJG21, 4Q0H9, and the PAS-GAF-PHY structure 4Q0J9. 4Q0H has very similar conformation around the thioether bond compared to 2O9C and 2O9B8, which are not displayed for clarity. (b) Comparison of the SFX structure and 4Q0H9 PAS-GAF-structures reveals differences in the D- and A-ring orientation, the thioether linkage and the positions of Tyr263, Met267, Tyr173 and the residues 17–25 and 184–186. The grey water (marked by red arrow) is only observable in the LowT structure (see text for details).

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