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. Author manuscript; available in PMC: 2010 Jun 4.
Published in final edited form as: Science. 2009 Oct 22;326(5958):1373–1379. doi: 10.1126/science.1181829

Fig. 6.

Fig. 6

PYR1 molecular surface color-coded by electrostatic potential. ABA-induced changes in subunit orientation produce conformational changes in the disk-shaped PYR1 dimer at the (A) interacting lids (top), (B) concave sides, aligned as in Fig. 5 (D and E), and (C) the cleft (bottom) between C-terminal helices. Conformational changes of charged residues in the Leu-Lock (Glu114 and Arg116) and Recoil (Glu149, Glu153, Asp154, Asp155 and Arg157) motifs of each subunit reduce electrostatic surface potential upon lid closure (A).