> > % egrep '^CRYST|^SCALE|^ATOM|^HETATM.{11}(MSE|PTR|SEP|TPO)' your.pdb > > standard_residues_only.pdb
I think the original request was to extract particular chains, so extending the above further to select (say) chain A egrep '^CRYST|^SCALE|^ATOM.{17}A |^HETATM.{11}(MSE|PTR|SEP|TPO) A' your.pdb > standard_residues_in_chainA.pdb Marko > -- Ian > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Phil Evans > > Sent: 30 August 2007 15:45 > > To: CCP4BB@JISCMAIL.AC.UK > > Subject: MSE > > > > <flame> > > As an aside, does anyone understand why MSE is not an amino-acid? > > Phil > > </flame> > > > > On 30 Aug 2007, at 15:31, Clemens Vonrhein wrote: > > > > > If your PDB file conforms to standard > > > > > > http://www.wwpdb.org/documentation/format23/sect9.html#ATOM > > > > > > you could do > > > > > > % egrep "^CRYST|^SCALE|^ATOM" your.pdb > > > standard_residues_only.pdb > > > > > > You'll miss the 'non-standard' Se-MET residue 'MSE' ;-) > > > > > > > Disclaimer > This communication is confidential and may contain privileged information > intended solely for the named addressee(s). It may not be used or disclosed > except for the purpose for which it has been sent. If you are not the > intended recipient you must not review, use, disclose, copy, distribute or > take any action in reliance upon it. If you have received this communication > in error, please notify Astex Therapeutics Ltd by emailing [EMAIL PROTECTED] > and destroy all copies of the message and any attached documents. > Astex Therapeutics Ltd monitors, controls and protects all its messaging > traffic in compliance with its corporate email policy. The Company accepts no > liability or responsibility for any onward transmission or use of emails and > attachments having left the Astex Therapeutics domain. Unless expressly > stated, opinions in this message are those of the individual sender and not > of Astex Therapeutics Ltd. The recipient should check this email and any > attachments for the presence of computer viruses. Astex Therapeutics Ltd > accepts no liability for damage caused by any virus transmitted by this > email. E-mail is susceptible to data corruption, interception, unauthorized > amendment, and tampering, Astex Therapeutics Ltd only send and receive > e-mails on the basis that the Company is not liable for any such alteration > or any consequences thereof. > Astex Therapeutics Ltd., Registered in England at 436 Cambridge Science Park, > Cambridge CB4 0QA under number 3751674 > _____________________________________ Marko Hyvönen Department of Biochemistry University of Cambridge http://www-cryst.bioc.cam.ac.uk/~marko tel: +44-(0)1223-766 044 / 760 468, fax: 766 002 _______________________________________