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Figure 1
Overall structures of Hd1NES1NiR in trimeric and hexameric forms. (a) Top (upper) and side (lower) views of a trimeric Hd1NES1NiR, colored green, magenta and cyan for each monomer. Threefold axis symmetry is indicated by a black closed triangle (upper) and black line (lower). The T1Cu and T2Cu ions in the core domain and T1CuN ion in the extra cupredoxin domain are shown by deep-blue spheres. (b) Side view of a hexameric Hd1NES1NiR coloured green, magenta and cyan for each monomer generated by crystallographic symmetry. Threefold axis symmetry for each trimer is indicated by a black line. The interaction interface between the two trimers through extra cupredoxin domains is indicated by a black broken line. The T1Cu and T2Cu ions in the core domain and T1CuN ion in the extra cupredoxin domain are represented by deep-blue spheres.

IUCrJ
Volume 7| Part 3| May 2020| Pages 557-565
ISSN: 2052-2525
https://doi.org/10.1107/S2052252520005230