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This [ CCP4] user community wiki ("CCP4 wiki" in short) is meant to be a collection of crystallographic knowledge as discussed on the [ CCP4 mailing list] (CCP4BB), and elsewhere. It may contain information about anything relevant to protein crystallographers, whether methods-related ("what is the best program for purpose X?"), problem-oriented ("my crystals melt if I look at them"), or concerning hardware ("what is your opinion on robot X / computer Y?").
The general [[Topics]] topics (side bar) include articles about [[Expression_and_Purification| protein expression and purification]],
[[Crystals| crystal growth, handling and data collection]],[[Crystallography| crystallographic theory and practice]],
and crystal structure related [[Bioinformatics|bioinformatics]] and [[Xtal_computing|computer-related issues]]. There are also announcements for [[Positions|open positions]], [[Courses and Conferences|courses and conferences]] and a [[FAQ|FAQ]].
== News ==
2015: For some time, account creation has been enabled again.
Nov 30, 2011: Due to the amount of spam created, we had to stop self-service account creation - send us a personal email (karsten. schaefer at, or kay.diederichs at and we'll open account creation for you.
April 04, 2008: transparent inter-wiki linking is now very easy due to an extension called "[ SpecialInterwiki]". These links appear like internal links (see the next sentences!), and can point to subsections of an article, or to figures (untested!). This also means that if a wiki changes its DNS name, only a single inter-wiki link has to be updated.
Currently, the [[ccp4dev:Main_Page|CCP4 developers' wiki]], the [[xds:Main_Page|XDSwiki]] and (as of May 02, 2008) the [[iucr:Main_Page|IUCr Online Dictionary of Crystallography]] are in the [[Special:Interwiki|Inter-Wiki table]].
== How to use this wiki ==
* you may read the existing articles with a web browser (does not require an account).
* you are invited to contribute to CCP4 wiki, by creating new articles, and by adding information to, or correcting existing articles. Before you do this for the first time, you need to [[create an account]]. Due to the amount of To prevent spam createdaccounts, we had you'll have to stop self-service account creation - send us pass a personal email (karsten. schaefer at, or kay.diederichs at and we'll open account creation for yousimple "exam".
This wiki is under the same [[Copyright]] (termed "GNU Free Documentation License") as [ Wikipedia], so any information in it may be transferred to other wikis subject to the [[Copyright]].

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