Re: [ccp4bb] Solvent channels

2014-07-02 Thread Bernhard Rupp
Sorry for the delayed response - The situation of 'normal' drug-lead molecule, no restriction of solvent channel access, no other hindrance to mobility, and rapid on-rates and/or/with a low Kd driving/maintaining the concentration gradient might be considered almost optimal. But let us assume

Re: [ccp4bb] Solvent channels

2014-07-02 Thread Hargreaves, David
systems and checking Compliance with our Code of Conduct and Policies. -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Reza Khayat Sent: 27 June 2014 12:01 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Solvent channels Hi, I'd like to do some

[ccp4bb] AW: [ccp4bb] Solvent channels

2014-06-30 Thread Herman . Schreuder
: [ccp4bb] Solvent channels Here you are starting to mix equilibrium arguments with the previous kinetic arguments. I don't think I am mixing them; both are relevant. If it cannot diffuse there, forget the kinetics - necessary but not sufficient requirement. Nonetheless, the fact that in high

Re: [ccp4bb] Solvent channels

2014-06-28 Thread Bernhard Rupp
figures eg 3-40. Cheers, BR Dale Tronrud -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Keller, Jacob Sent: Friday, June 27, 2014 3:07 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Solvent channels And yet halides--even iodide

Re: [ccp4bb] Solvent channels

2014-06-28 Thread Paul Emsley
On 27/06/14 12:00, Reza Khayat wrote: Hi, I'd like to do some soaking experiments with a relatively large molecule. Can someone suggest a program/method to display the solvent channels of a crystal? We have the crystal structure. I'd like to see if the channels are large enough to allow the

[ccp4bb] Solvent channels

2014-06-27 Thread Reza Khayat
Hi, I'd like to do some soaking experiments with a relatively large molecule. Can someone suggest a program/method to display the solvent channels of a crystal? We have the crystal structure. I'd like to see if the channels are large enough to allow the molecule to travel to the hypothesized

Re: [ccp4bb] Solvent channels

2014-06-27 Thread Boaz Shaanan
of Reza Khayat [rkha...@ccny.cuny.edu] Sent: Friday, June 27, 2014 2:00 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Solvent channels Hi, I'd like to do some soaking experiments with a relatively large molecule. Can someone suggest a program/method to display the solvent channels of a crystal

Re: [ccp4bb] Solvent channels

2014-06-27 Thread Bernhard Rupp
are the easiest person to fool. R. Feynman, 1974 -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Boaz Shaanan Sent: Friday, June 27, 2014 2:26 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Solvent channels Hi, I'm not aware of a program

Re: [ccp4bb] Solvent channels

2014-06-27 Thread Keller, Jacob
: Re: [ccp4bb] Solvent channels Just a remark: diffusion is a slow and random-walk process. Particularly large molecules in viscous media (PEG anybody?) move (diffuse) slowly in solution. To simply extrapolate from the fact that the ligand is smaller than the solvent channels to the odds

[ccp4bb] AW: [ccp4bb] Solvent channels

2014-06-27 Thread Herman . Schreuder
. Herman -Ursprüngliche Nachricht- Von: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] Im Auftrag von Bernhard Rupp Gesendet: Freitag, 27. Juni 2014 15:00 An: CCP4BB@JISCMAIL.AC.UK Betreff: Re: [ccp4bb] Solvent channels Just a remark: diffusion is a slow and random-walk process

Re: [ccp4bb] Solvent channels

2014-06-27 Thread Bernhard Rupp
Sent: Friday, June 27, 2014 3:07 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Solvent channels And yet halides--even iodide--permeate those same lysozyme crystals and others entirely in 30--60 sec. JPK -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK

Re: [ccp4bb] Solvent channels

2014-06-27 Thread Dale Tronrud
@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Solvent channels And yet halides--even iodide--permeate those same lysozyme crystals and others entirely in 30--60 sec. JPK -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Bernhard Rupp Sent: Friday

Re: [ccp4bb] Solvent channels

2014-06-27 Thread Yarrow Madrona
You can use CAVER but you would have to make all the symmetry mates as one chain in order to fool it. Still better to just do the experiment I think. Either it will work or it won't, regardless of what any software tells you. Just a wild idea : ) On Fri, Jun 27, 2014 at 5:06 PM, Yarrow Madrona