About the Authors

Ellen Wallace

Affiliation Emerald BioStructures, Bainbridge Island, Washington, United States of America

David Dranow

Affiliation Emerald BioStructures, Bainbridge Island, Washington, United States of America

Philip D. Laible

Affiliation Biosciences Division, Argonne National Laboratory, Argonne, Illinois, United States of America

Jeff Christensen

Affiliation Emerald BioStructures, Bainbridge Island, Washington, United States of America

Peter Nollert

pnollert@embios.com

Affiliation Emerald BioStructures, Bainbridge Island, Washington, United States of America

Competing Interests

EW, DD, JC and PN are employed by Emerald BioStructures, Inc. that markets, together with its sister company Emerald BioSystems, Inc. crystallization tools and services. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: EW DD PN. Performed the experiments: EW DD JC. Analyzed the data: EW DD JC PN. Contributed reagents/materials/analysis tools: EW DD. Wrote the paper: DD PN PDL EW. Supplied RC materials: PDL.