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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Biochim Biophys Acta. 2016 Jun 16;1857(9):1594–1606. doi: 10.1016/j.bbabio.2016.06.005

Figure 2.

Figure 2

The side chain of His376 can rotate from its position in the crystal structure (left) such that it is in position to accept a hydrogen bond from PRAa3 (right). Snapshots taken from simulation of protonation state B, see Table 1 and Figure 1.