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Figure 1
Two different AioA2B2/(cytc552)2 complexes are present in the asymmetric unit of the AioAB/cytc552 crystal structure. In both of the structures the AioA subunits are shown as gray surfaces, the cytc552 molecules are in salmon and the AioB subunits are in cyan. (a) The AioA2B2 complex represented by chains ABI and CDJ. The two cytc552 molecules (chains I and J) are located at similar positions in a cleft near the AioA/AioB interface. (b) The AioA2B2 complex represented by chains EFK and GHL. One molecule of cytc552 (chain K) is located at the AioA/AioB interface. The second molecule of cytc552 (chain L) is unique in that it sits between AioAB heterodimers.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 79| Part 4| April 2023| Pages 345-352
https://doi.org/10.1107/S2059798323002103
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