About the Authors

Verónica Sáez-Jiménez

Affiliation Centro de Investigaciones Biológicas, CSIC, Madrid, Spain

Elena Fernández-Fueyo

Affiliation Department of Biotechnology, Delft University of Technology, Delft, The Netherlands

Francisco Javier Medrano

fjmedrano@cib.csic.es (FJM, for questions related to obtaining X-ray crystal structures); ATMartinez@cib.csic.es (ATM); FJRuiz@cib.csic.es (FJR-D)

Affiliation Centro de Investigaciones Biológicas, CSIC, Madrid, Spain

Antonio Romero

Affiliation Centro de Investigaciones Biológicas, CSIC, Madrid, Spain

Angel T. Martínez

fjmedrano@cib.csic.es (FJM, for questions related to obtaining X-ray crystal structures); ATMartinez@cib.csic.es (ATM); FJRuiz@cib.csic.es (FJR-D)

Affiliation Centro de Investigaciones Biológicas, CSIC, Madrid, Spain

Francisco J. Ruiz-Dueñas

fjmedrano@cib.csic.es (FJM, for questions related to obtaining X-ray crystal structures); ATMartinez@cib.csic.es (ATM); FJRuiz@cib.csic.es (FJR-D)

Affiliation Centro de Investigaciones Biológicas, CSIC, Madrid, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: VS-J FJM AR ATM FJR-D. Performed the experiments: VS-J EF-F FJM AR FJR-D. Analyzed the data: VS-J ATM FJR-D. Contributed reagents/materials/analysis tools: AR FJR-D ATMF. Wrote the paper: VS-J ATM FJR-D.