Re: [ccp4bb] low-resolution and zinc

2012-11-09 Thread Roger Rowlett
appreciated. Thanks SDY Date: Thu, 8 Nov 2012 14:36:59 +0200 From: mbfro...@post.tau.ac.il Subject: Re: [ccp4bb] low-resolution and zinc To: CCP4BB@JISCMAIL.AC.UK The experiment should be very problematic if I can't determin

Re: [ccp4bb] low-resolution and zinc

2012-11-09 Thread SD Y
I am using Refmac_5.7.0029 in CCP4ThanksSDY Date: Fri, 9 Nov 2012 20:35:48 +0200 From: mbfro...@post.tau.ac.il Subject: Re: [ccp4bb] low-resolution and zinc To: CCP4BB@JISCMAIL.AC.UK What program do you use for refinement?FF Dr Felix Frolow Professor of Structural Biology and

Re: [ccp4bb] low-resolution and zinc

2012-11-09 Thread Felix Frolow
ow what is missing, I also attached the log file which generated the > ZN-His coordination. > > Any help is highly appreciated. > > Thanks > SDY > > Date: Thu, 8 Nov 2012 14:36:59 +0200 > From: mbfro...@post.tau.ac.il > Subject: Re: [ccp4bb] low-resolution and zinc > To:

Re: [ccp4bb] low-resolution and zinc

2012-11-08 Thread Felix Frolow
various >> possibilities. >> >> Herman >> >> From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Felix >> Frolow >> Sent: Thursday, November 08, 2012 10:36 AM >> To: CCP4BB@JISCMAIL.AC.UK >> Subject: Re: [ccp4bb] low-resolution

Re: [ccp4bb] low-resolution and zinc

2012-11-08 Thread Herman . Schreuder
] On Behalf Of Felix Frolow Sent: Thursday, November 08, 2012 1:14 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] low-resolution and zinc I do not see with what you do not agree in what was written (maybe not very carefully). One determine sp

Re: [ccp4bb] low-resolution and zinc

2012-11-08 Thread Felix Frolow
oups manually, but one has to test the various > possibilities. > > Herman > > From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Felix > Frolow > Sent: Thursday, November 08, 2012 10:36 AM > To: CCP4BB@JISCMAIL.AC.UK > Subject: Re: [ccp4bb] l

Re: [ccp4bb] low-resolution and zinc

2012-11-08 Thread Herman . Schreuder
Yogi From: mbfro...@post.tau.ac.il Subject: Re: [ccp4bb] low-resolution and zinc Date: Wed, 7 Nov 2012 23:35:35 +0200 To: ccp4...@hotmail.com

Re: [ccp4bb] low-resolution and zinc

2012-11-08 Thread Felix Frolow
me and help which I was very much in need of. > > Thanks > Yogi > > From: mbfro...@post.tau.ac.il > Subject: Re: [ccp4bb] low-resolution and zinc > Date: Wed, 7 Nov 2012 23:35:35 +0200 > To: ccp4...@hotmail.com > > It is THE BOOK published in 1976! There is a chapter

Re: [ccp4bb] low-resolution and zinc

2012-11-07 Thread Felix Frolow
duction media. >> >> I am trying to search the refence in google. Are you refering to the Book >> published in 1976 titled "protein crystallography", if not could you please >> kindly direct me to right reference. >> >> I sincerely appreciate your time and

Re: [ccp4bb] low-resolution and zinc

2012-11-07 Thread Katherine Sippel
direct me to right reference. > > I sincerely appreciate your time and suggestion. > > Warm reagrds, > SDY > > > > > > > > -- > From: mbfro...@post.tau.ac.il > Subject: Re: [ccp4bb] low-resolution and zinc > Date: Wed, 7 Nov 201

Re: [ccp4bb] low-resolution and zinc

2012-11-07 Thread Felix Frolow
; kindly direct me to right reference. > > I sincerely appreciate your time and suggestion. > > Warm reagrds, > SDY > > > > > > > > > From: mbfro...@post.tau.ac.il > Subject: Re: [ccp4bb] low-resolution and zinc > Date: Wed, 7 Nov 2012 19:35:21 +0

Re: [ccp4bb] low-resolution and zinc

2012-11-07 Thread Roger Rowlett
Tryptone and/or yeast extract is loaded with metals, including zinc. It is almost impossible to keep zinc contamination at bay without using carefully defined media and taking heroic measures. (I know this because of the difficulty of making overexpressed metallo-substituted zinc-enzymes when t

Re: [ccp4bb] low-resolution and zinc

2012-11-07 Thread Ed Pozharski
On Wed, 2012-11-07 at 11:29 -0600, SD Y wrote: > https://www.dropbox.com/s/4jd6gdor87ab9lj/Zn-coordination.png Your sigma level of 6.5 seems a bit low, so maybe it is a different metal. But on your main question - yes, metal binding proteins do pick up metals from the media. Once metal is coord

[ccp4bb] low-resolution and zinc

2012-11-07 Thread SD Y
Dear all, I have a related question to the one I have posted "low resolution and SG", on which I am still working based on the suggestions I have got. The model I have used, has Zn co-ordinated well in tetrahydral fashion by 3 cys and 1 His residues. They have add Zn in to their experiment