Sharp FAQ

 

 

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    How do I start SHARP?

    First make sure the CCP4 logicals are set (ccp4setup) and that the logical SHARP_SCR is pointing to your CCP4_SCR area. Start netscape. Open methylase:8080, you will be prompted for your account and password. This is a sharp account which is separate from your claude account.

    How do I get a SHARP account?

    Ask me for one. After it is set up, you will get an e-mail from sharp telling you what to do to set up the directories/files necessary for running sharp.

    How do I run SHARP on another unix system (bartok, baez, gilmour)?

    See me. I'll need to install the executables on that machine.

    Can't create file or directory errors.

    There are two possible causes. All sharp jobs are run by the user sharp, but files are put into the users's directories. Sharp must have read/write permissions for these directories. Set permissions to 775 or 777 for directories sharp must use.
    If the file is being made, check for recursive links. If they exist, there was an error in your user setup. Delete the links, run useSHARP again, and make sure the directory you give sharp for your logfiles is different from the default sharp directory.

    I have two molecules per asymmetric unit, sharp can't figure it out. What do I do?

    Give sharp a sequence file containing two copies of the sequence. Do not give sharp a molecular weight or number of residues.