"The CryoEM Map and Model Structure Challenges," a thematic collection of 18 peer-reviewed articles plus editorial being published in the Journal of Structural Biology, is now available online. This virtual special issue summarizes the outcomes of the Joint Challenges Wrap-up Workshop held in October 2017 at Stanford University, and includes perspectives of challengers and assessors, expert and novice, on the current state of reconstruction, modelling, validation and comparison of cryo-EM derived structures. Elsevier has kindly provided free promotional access to the full collection for the next six months (until 18 May 2019).
We are grateful to all who have contributed to the Challenges and to this special issue.
Addendum: Nature Methods has published a related editorial.