Re: [ccp4bb] questions about hydrophobic core

2007-06-19 Thread Nadir T. Mrabet
Hi, There exists a formal analytical way in doing this using the "survol" command in BRUGEL package. In short, this command define the accessible surface (external and cavities) to the probe you choose and creates separate masks (ensembles) of all atoms/residues that define these surfaces. The

Re: [ccp4bb] questions about hydrophobic core

2007-06-19 Thread Tommi Kajander
while evaluating it, you might want to check the importance of buried residues by looking at how conserved they are in homologs. tommi Quoting Eleanor Dodson <[EMAIL PROTECTED]>: > I dont know the answer but have you looked at the PISA site at the eBI - > > there is extensive documentation addr

Re: [ccp4bb] questions about hydrophobic core

2007-06-19 Thread Liz Potterton
Sebastiano, I can suggests one approach to finding core residues.. CCP4mg will calculate the total asa buried per residue and residues can be selected by the criteria of their buried area. One way to define the protein core would be to select residues with, say, <5.0A*2 asa. You can easily se

Re: [ccp4bb] questions about hydrophobic core

2007-06-19 Thread Eleanor Dodson
I dont know the answer but have you looked at the PISA site at the eBI - there is extensive documentation addressing these sorts of questions. http://www.ebi.ac.uk/msd-srv/prot_int/pistart.html Eleanor Sebastiano Pasqualato wrote: Hi all, a few days ago I sent a post in which I was asking if an

[ccp4bb] questions about hydrophobic core

2007-06-19 Thread Sebastiano Pasqualato
Hi all, a few days ago I sent a post in which I was asking if anybody knew a program to automatically define the hydrophobic core of a protein, given the pdb. Unfortunately I got no answers, and indeed a more thorough googling around revealed that such a program might not exist. So it seems I