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Figure 4
The four protonation states of homocitrate considered: 2H, 1Ha, 1Hc and 0H. Atom numbers are also shown. Non-polar H atoms have been omitted. The charges of homocitrate are −2, −3, −3 and −4, respectively, in these four protonation states.

IUCrJ
Volume 11| Part 6| November 2024| Pages 921-937
ISSN: 2052-2525
https://doi.org/10.1107/S2052252524008406