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. 2015 Sep 3;1:15010. doi: 10.1038/npjmgrav.2015.10

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Copyright © 2015 Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Protein Crystallization Apparatus for Microgravity (PCAM) in the typical flight configuration in an incubator containing a total of 378 experiments. Crystal growth interfaces were activated or deactivated in a flight cylinder arrangement. Each cylinder contained 9 trays with 7 experiments per tray for a total of 63 experiments per cylinder. PCAM also flew as an ambient stowage item on several flights. Individual cylinders are activated and deactivated by the crew.