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. Author manuscript; available in PMC: 2018 Jan 26.
Published in final edited form as: Molecules. 2017 Dec 23;23(1):E32. doi: 10.3390/molecules23010032

Figure 2.

Figure 2

The crystal structure of BjPutA C792A. (A) The protomer of BjPutA C792A. The PRODH module is colored blue. The GSALDH module is colored red. The purple surface represents the substrate-channeling tunnel. For reference, the two α-helices that border the central section of the tunnel are noted (α5a, 770 s helix). (B) Close-up view of proline molecules bound in the GSALDH active site and the middle of the tunnel. (C) The dimer of BjPutA C792A. The two protomers are colored gray and slate. The 9 proline molecules bound to the dimer are shown in spheres.