[ccp4bb] Micromatrix seeding using the mosquito

2010-09-20 Thread Maria Håkansson
Dear all, Anyone who have had success using the mosquito for micromatrix seeding? Which way is the optimal way of adding seed solution to sitting drops on an MRC plate? Is it better to add 100 nl protein + 10 nl seed solution + 100 nl reservoir solution or to add concentrated seed solution

Re: [ccp4bb] Effect of NCS on estimate of data:parameter ratio

2010-09-20 Thread Dirk Kostrewa
Hi Ian, Am 19.09.10 15:25, schrieb Ian Tickle: Hi Florian, Tight NCS restraints or NCS constraints (they are essentially the same thing in effect if not in implementation) both reduce the effective parameter count on a 1-for-1 basis. Restraints should not be considered as being added to the

Re: [ccp4bb] Micromatrix seeding using the mosquito

2010-09-20 Thread Steiner, Roberto
Dear Maria In our hands Mosquito MMS worked by adding 2x protein solution + 1x seed solution + 1x reservoir. The reason for doing this was two-fold: I) ratio protein/reservoir is similar to the condition that generated the seed stock II) a deliberate bias toward the initial condition is given

[ccp4bb] 300 projects = maximum in CCP4i?

2010-09-20 Thread Joerg Kallen
Dear all, I wanted to generate the 301'st project in the CCP4i interface Directories+Projects. The problem is that when I click on the button for the Project of this session, there is apparently no space for the 13th column (of 25 entries). I do not want to delete any old projects, so is there

Re: [ccp4bb] Micromatrix seeding using the mosquito

2010-09-20 Thread Alexey Rak
dear Maria, we routinely use Mosquito for MMS, the ratio works the best: 100nl protein + multi-aspirate mode x (15nl seeds + 85nl reservoir solution). best regards, alexey Alexey RAK Structural Biology SDI/LGCR Sanofi-aventis RD Centre de Recherche Paris 13, Quai Jules Guesde - BP 14

Re: [ccp4bb] Effect of NCS on estimate of data:parameter ratio

2010-09-20 Thread Ian Tickle
Hi Dirk First, constraints are just a special case of restraints in the limit of infinite weights, in fact one way of getting constraints is simply to use restraints with very large weights (though not too large that you get rounding problems). These 'pseudo-constraints' will be indistinguishable

Re: [ccp4bb] Graphics for notebook

2010-09-20 Thread Schubert, Carsten [PRDUS]
Eric, if you want to use stereo on a notebook you have very limited options. I have stereo running using a Lenovo T61p with a Nvidia Quadro FX570M under XP, not tried Linux yet. Officially this card is not even supported by Nvidia for 3D application, but works anyway in conjunction with a

Re: [ccp4bb] Graphics for notebook

2010-09-20 Thread Jim Fairman
The Quadro FX 3700M in my Dell Precision 6400M notebook works great with stereo in Windows, no support for Linux yet though. On Mon, Sep 20, 2010 at 8:57 AM, Schubert, Carsten [PRDUS] cschu...@its.jnj.com wrote: Eric, if you want to use stereo on a notebook you have very limited options. I

Re: [ccp4bb] Deposition of riding H: R-factor is overrated

2010-09-20 Thread Quyen Hoang
Hi Nicholas, Thank you for your reply. snip it seems that we are trying to deposit one model to satisfy two different purposes - one for model validation and the other for model interpretation (use in docking etc), and what's good for one purpose might not be necessarily good for the other.

[ccp4bb] EMBL-EBI Services Survey

2010-09-20 Thread Gerard DVD Kleywegt
Dear colleagues, The EBI is carrying out a user survey about its services, collecting input from current and potential users. The survey lives here: http://www.surveymonkey.com/s/EMBL-EBI - It should take 10-15 minutes. - There are no compulsory questions. - You can be

Re: [ccp4bb] Graphics for notebook

2010-09-20 Thread Ed Pozharski
It's best to have dedicated NVIDIA (don't have much experience with ATI, but it is my understanding that they may be more difficult to configire sometimes). However, Intel on-board graphics has gotten much better recently (in fact, Intel releases drivers as open source (guess because they are not

Re: [ccp4bb] Graphics for notebook

2010-09-20 Thread Jason Vertrees
Hi Eric, I wanted to know which type of graphics card is more suitable for a notebook which is going to be used for structural biology. Integrated or dedicated? ATI or NVIDIA? At the moment I have to choose between an integrated Intel HD Graphics or a dedicated NVIDIA NVS 3100M Graphics.

[ccp4bb] Postdoctoral Position

2010-09-20 Thread Jie Liu
A postdoctoral position in protein crystallography is available in Dr. Min Lu’s lab at Public Health Research Institute Center, New Jersey Medical School, University of Medicine and Dentistry of New Jersey. Our research mainly focuses on the three-dimensional structures and biological