[ccp4bb] Crystallographic Postdoctoral Research Position - Berkeley, USA

2008-04-01 Thread Paul Adams
A postdoctoral research position is available immediately to work on challenging problems in structural biology: Postdoctoral Researcher Job ID: 21615 Division: Physical Biosciences Date Opened: 3/28/2008 This postdoctoral position will study the structure and function of macromolecular com

Re: [ccp4bb] into the looking glass

2008-04-01 Thread James Stroud
On Apr 1, 2008, at 5:52 PM, James Holton wrote: I myself am a left-handed human, and I admit I do find some devious pleasure in this "reversal of fortunes". Perhaps it is some deep- seated suppressed anger from my days in kindergarten searching through piles of scissors for those few "lefty

Re: [ccp4bb] into the looking glass

2008-04-01 Thread James Holton
As someone who is currently only able to use my left foot I must say I like your way of thinking, Steve. (I broke my right ankle Mar 5). Still can't walk, but at least I have one leg to stand on... I myself am a left-handed human, and I admit I do find some devious pleasure in this "reversal

Re: [ccp4bb] advice regarding computer hardware purchase

2008-04-01 Thread Kay Diederichs
Chu-Young Kim schrieb: Hello everyone, I have not done much crystallography in the past five years but I'm trying to get back into it now because we stumbled upon a very interesting enzyme. It seems a lot has changed in the computer hardware world. I was trained on an SGI back in graduate sc

Re: [ccp4bb] advice regarding computer hardware purchase

2008-04-01 Thread Roger Rowlett
Chu-Young Kim wrote: Hello everyone, I have not done much crystallography in the past five years but I'm trying to get back into it now because we stumbled upon a very interesting enzyme. It seems a lot has changed in the computer hardware world. I was trained on an SGI back in graduate scho

Re: [ccp4bb] into the looking glass

2008-04-01 Thread Jan Schoepe
Hey guys, what day is today? I think this was very funny... James Holton <[EMAIL PROTECTED]> schrieb: Dear CCP4BB, I think it prudent at this point for me to announce what could be a very old, but serious error in the fundamental mathematics of crystallography. To be brief, I have unco

[ccp4bb] convenient means to find I/sigma for publications?

2008-04-01 Thread James Pauff
Hello all, Silly question, but what is the most convenient means to find the overall I/sigma and the I/sigma for the highest resolution shell in CCP4? At the end of refinement and validation, and after running PROCHECK, I am still using a very convoluted route to obtaining these numbers. Thanks!

Re: [ccp4bb] [phenixbb] TLS, B factors, phenix and refmac

2008-04-01 Thread Pavel Afonine
I think what you describe below is a bit of re-inventing the wheel (in some sense, not completely). Here is why: phenix.refine has an extremely complex algorithm of refinement ADP. By refining ADP I mean refining of all U=Utls+Ucryst+Uresidual. Briefly: - it does some group iso B refinement to

Re: [ccp4bb] advice regarding computer hardware purchase

2008-04-01 Thread William Scott
Hi Chu-Young: I would recommend either a PC running Ubuntu Linux (my personal favorite distribution -- they are all more or less the same thing) or else Apple Mac OS X, depending upon your other needs, budget, etc. I've got a lot of propaganda for OS X here: http://xanana.ucsc.edu/xtal an

[ccp4bb] TLS, B factors, phenix and refmac

2008-04-01 Thread Mischa Machius
Hi - Prompted by the recent discussions on B values, TLS refinement and differences between Phenix and refmac, we looked into these matters in more detail. We found that the crux of the problem lies in the fact that TLS and B value refinements are usually decoupled. We have developed a form

Re: [ccp4bb] into the looking glass

2008-04-01 Thread Anastassis Perrakis
James must be too fast - he better be to follow the 93,000 (or is it more?) csh lines of code in Elves in the speed I recall he does. So, most likely he lost less time writing it than us reading it: its a cunning plot, he is wasting our time not his. A. On 1 Apr 2008, at 21:54, So Iwata wr

[ccp4bb] advice regarding computer hardware purchase

2008-04-01 Thread Chu-Young Kim
Hello everyone, I have not done much crystallography in the past five years but I'm trying to get back into it now because we stumbled upon a very interesting enzyme. It seems a lot has changed in the computer hardware world. I was trained on an SGI back in graduate school. What kind of hardware s

Re: [ccp4bb] into the looking glass

2008-04-01 Thread So Iwata
Great job. But don't you have any better things to do (tm) ? s. On 1 Apr 2008, at 18:59, James Holton wrote: Dear CCP4BB, I think it prudent at this point for me to announce what could be a very old, but serious error in the fundamental mathematics of crystallography. To be brief, I

Re: [ccp4bb] into the looking glass

2008-04-01 Thread Steve Lane
James: I have been unable to find any logical flaw in your great chain of reasoning, in spite of the several minutes I spent contemplating it over a mug of lukewarm tea. Given that you are doubtless also correct that, "Inverting the 'hand of the world' is going to be very hard for a lot of people

Re: [ccp4bb] into the looking glass

2008-04-01 Thread Robert Sweet
I lost track. What's the date today? On Tue, 1 Apr 2008, James Holton wrote: Dear CCP4BB, I think it prudent at this point for me to announce what could be a very old, but serious error in the fundamental mathematics of crystallography. To be brief, I have uncovered evidence that th

Re: [ccp4bb] into the looking glass

2008-04-01 Thread Gerard DVD Kleywegt
Dear James! Initially I was shocked by the profound implications of your discovery! I immmediately phoned my good friend, Sen. John McCain, to discuss the issue. As you know, Sen. McCain was an aspiring physicist back in the 1920s, when he was in his forties. He pointed me to a little known no

Re: [ccp4bb] into the looking glass

2008-04-01 Thread anthony
Have to learn crystallography again.. and now along with quantum mechanics! worried Anthony > Dear CCP4BB, > > I think it prudent at this point for me to announce what could be a > very old, but serious error in the fundamental mathematics of > crystallography. To be bri

[ccp4bb] into the looking glass

2008-04-01 Thread James Holton
Dear CCP4BB, I think it prudent at this point for me to announce what could be a very old, but serious error in the fundamental mathematics of crystallography. To be brief, I have uncovered evidence that the "hand" of the micro-world is actually the opposite of what we have believed si