Dear Colleagues,

We are pleased to announce the 17th annual CCP4/APS crystallographic school “From data collection to structure refinement and beyond” will be held on June 23rd to 30th, 2025 at the Advanced Photon Source (APS), Argonne National Laboratory (ANL), near Chicago, Illinois, USA. All details can be found at the school website: http://www.ccp4.ac.uk/schools/APS-2025/index.php. 

Dates: June 23rd through 30th, 2025 (on-site), June 2nd and 16th (virtual)

Location: Advanced Photon Source, Argonne National Laboratory, Argonne (Near

Chicago), Illinois, USA

The school comprises two parts: data collection workshop and a crystallographic computing workshop. Data collection workshop includes beamline training, data collection at GM/CA@APS beamlines, and data processing, using only the participants’ crystals. Crystallographic computation workshop will feature many modern crystallographic software packages (including CCP4, PHENIX, XDS, HKL and DIALS) taught by authors and other experts. This workshop will also introduce elements of CryoEM, such as model building and refinement. The daily schedule will be organized in three sections – lectures, tutorials, and hands-on (interactive trouble-shooting of the technical difficulties the participants face in their projects). Two additional virtual days (June 2nd and 16th, 2025) will cover sample preparation (cryo-cooling), bioinformatics and introductory crystallography lectures. We have had considerable success resolving these problems in past years, attested by resulting publications (see http://www.ccp4.ac.uk/schools/APS-school/publications.php). A draft program can be found at the School website.

Applicants: The workshop strongly encourages students who need expert help with difficulties/challenges in their own projects. Graduate students, postdoctoral researchers and early-career faculty, along with commercial/industrial researchers are encouraged to apply. Only about 20 applicants will be selected for participation. 

Application: Application deadline is  May 15th, 2025, but we strongly encourage interested participants to apply as soon as possible. To apply, visit  https://www.ccp4.ac.uk/schools/APS-2025/application.php

Fees: There is a \$500 (USD) participation fee for the selected academic students and \$1500 for industrial researchers. No credit card will be required for registration, students who are selected to participate will be contacted to pay. The students will be responsible for their transportation and lodging. The workshop organizers can assist in making lodging reservations at the Argonne Guest House. The workshop will cover all other expenses (including meals).

We hope to see you at the school.

Charles, Andrey, Garib and Qingping