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Model Challenge: Symmetry Info Updated

The model challenge guide now holds corrected symmetry center info and BIOMT matrices for the proteasome, GroEL, and β-galactosidase targets. The changes are highlighted with red text and update date.

The previously posted symmetry info had used rounded values for the voxel sizes, yielding inprecise center coordinate and matrix element values. We apologize for the errors.

Model Challenge Submission Deadline Extended

The deadline for model challenge submissions is now changed to Friday June 17 (21:00 UTC).

We hope that this extension will be helpful to all of our challengers.

In addition, please be aware that indicated symmetry centers in the model challenge guide may not be exact. 
This issue was just raised by one participant—we are investigating and will send a further update about this soon.

Further note (4/28): symmetry issue has been resolved

Map Submission Deadline Extended (Again)

By popular request, we are extending the map challenge submission deadline to April 15, 2016 @ 21:00 UTC (5 PM US ET).  Click here to see the new deadline time in your location.

 

Clarification about symmetry of the GroEL simulated data

The authors of the GroEL simulated dataset have asked us to let all map challenge participants know that 4HEL, the model from which the images were generated, is non-symmetrical, owing to unmatched crystallographic symmetry (P212121).   They have just become aware of this issue following discussion with two challenge participants.

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EMDataBank Validation Challenges are supported by NIH National Institute of General Medical Sciences

Please send your challenge questions, comments and feedback to challenges@emdatabank.org

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