13th Community Wide Experiment on the
Critical Assessment of Techniques for Protein Structure Prediction

Target Submission Instructions


For the experiment to succeed, it is essential that we obtain the help of the experimental community. We invite protein crystallographers, NMR spectroscopists and electron miscroscopy scientists to provide us with information about sequences likely hard for structure modeling that they are working on and can keep on hold for at least 4 weeks after submitting to CASP.

How to submit a target

There are three ways to do that.

  • PREFERRED: You can submit a target using our Target Submission Form.

    If you have not registered with the Prediction Center yet, you would have to do so first. This is a one-time procedure, where you will be asked to provide your contact information. If you are registered with the Prediction Center, you will have to login and supply only the information about the target.

  • Email.

    As alternative to the submission through the Target Submission Form, you can simply send an email to casp AT predictioncenter DOT org containing target's sequence and estimated date of its public release. Information on how the structure was solved (method), protein name, organism name, known ligands, etc. would also be helpful.

  • Marking PDB deposition as "CASP target" in PDB's submission system.

    A special arrangement has been negotiated with the PDB to allow structure depositors to designate their structures as "CASP target" in the PDB's submission system. This way it is possible to submit a structure without any delays. It will not be released until after a certain period of time (currently 8 weeks). In this case there is no need to submit directly to CASP (using options 1 or 2) as in this case we will receive a notification from the PDB.

Once submitted, we will let you know within 3 days on whether we will use your suggested target for CASP13. In case we take your structure as a CASP13 target, we would ask you to block public access to any structural information about your protein.
Protein Structure Prediction Center
Sponsored by the US National Institute of General Medical Sciences (NIH/NIGMS)
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