[ccp4bb] Good NMR Board

2007-02-08 Thread Justin Schmitz

Morning every body!


Does anybody know a board for NMR releated questions which has a quality 
like this?


Thx for your answers


Re: [ccp4bb] Good NMR Board

2007-02-08 Thread Eleanor Dodson
I guess you can use this one - it certainly isnt restricted to 
crystallographic Qs..

Eleanor


Justin Schmitz wrote:

Morning every body!


Does anybody know a board for NMR releated questions which has a 
quality like this?


Thx for your answers




Re: [ccp4bb] Good NMR Board

2007-02-08 Thread James Stroud

There is an NMR Board. Problem is that you have to abide by its Rules:

First Rule: You do not talk about the NMR board.
Second Rule: You DO NOT talk about the NMR board.

James

Justin Schmitz wrote:


Morning every body!


Does anybody know a board for NMR releated questions which has a  
quality like this?


Thx for your answers





Re: [ccp4bb] Good NMR Board

2007-02-08 Thread Matthew . Franklin
CCP4 bulletin board CCP4BB@JISCMAIL.AC.UK wrote on 02/08/2007 06:34:44
AM:

 Thanks for the links to the boards!

 But I think you could also answer my question. I need a way to remove
 gas, solved in my protein sample after using pressure filtration. My
 problem is the small sample volume of 400 mikroliters.


 greets Justin



Hi Justin -

I was also going to suggest the MicroCal degasser; of course you have to
have the equipment already.  Some other, lower-tech possibilities:

- Put the sample in a 15-ml Falcon tube.  Attach house vacuum to the top of
the tube - they can usually take it without cracking.  Tap tube vigorously
on the benchtop to nucleate the bubbles.

- A brief spin in a speedvac might work - just don't leave it in or you'll
dry the sample out.

- Don't use pressure filtration.  Try a small-volume centrifugal filter
instead.  Like these:
http://www.vwrsp.com/catalog/product/index.cgi?catalog_number=82031-362inE=1highlight=82031-362

Disclaimer: I haven't tried the first two methods for this purpose.  The
first method is similar to how I degassed my calorimetry samples before
Microcal introduced its degasser.  You might want to try it on a dry tube
first...

- Matt

--
Matthew Franklin , Ph.D.
Senior Scientist, ImClone Systems
180 Varick Street, 6th floor
New York, NY 10014
phone:(917)606-4116   fax:(212)645-2054


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Re: [ccp4bb] Good NMR Board

2007-02-08 Thread William Scott
Put it in 1 ml syringe, seal the end with your finger (use a piece of 
parafilm in between if you need it) and then draw out the plunger to 
create negative pressure, and your bubbles will go away. Then let it

gravity-drain or very slowly push the contents into an eppindorf tube.

or

Speed-vac it for about 1 or 2 minutes (not long enough to lose volume).


On Thu, 8 Feb 2007, Justin Schmitz wrote:


Thanks for the links to the boards!

But I think you could also answer my question. I need a way to remove gas, 
solved in my protein sample after using pressure filtration. My problem is 
the small sample volume of 400 mikroliters.



greets Justin


P.s. special thanks to James for his constructive advice!!



[ccp4bb] off-topic Apple computer question

2007-02-08 Thread William Scott

Hi folks:

Sorry this is a wee bit off topic, but since I am more likely to get  
a straight answer from people here, I'm going to ask..


I have 2 identical laptops.  We bought both for the lab about 2 years  
ago.  They are G4 ppc.  I bought an extra half gig of memory for each  
at the time of purchase, but I think it is from ramjet, not Apple.


Both drives failed within a few weeks of one another, making me  
wonder if they were really built by Ford.  The second one came back  
from Apple today with a snotty message saying that the third-party  
memory had caused the problem and that they will refuse to do a  
repair if we ever send them a computer in the future with a third- 
party memory chip in it.


This strikes me as absolute horse-hockey, but then again, maybe I am  
not aware of something I should be.


Thanks.

Bill


Re: [ccp4bb] off-topic Apple computer question

2007-02-08 Thread Jeff Speir

Hi Bill,

This sounds very unusual.  We have 3rd party RAM in almost all of our  
Macs, and I've never had a repair request denied by AppleCare.  This  
is an allowed DIY (do it yourself) installation in most if not all  
their recent machines.  It's common knowledge now that hard drives  
fail all the time, new or old - just seems to be hit or miss from all  
manufacturers these days and certainly not the users fault.  We had  
an iMac hard drive fail within 3 months, and had no problem getting  
the repair from AppleCare.


If it is AppleCare your are dealing with, call back and explain what  
you received back from them.  If you don't get a satisfactory answer,  
ask to talk to a supervisor, and keep going up the chain until  
someone with sufficient authority can explain this message or get it  
repaired properly.  I would also suggest running memtest, or their  
own extended Apple Hardware Test (usually on the discs that came in  
the box), to prove the memory is working fine (from bootable CD/DVD  
or external drive).  With their own test verifying the RAM, how can  
they prove it caused a disk failure?


In one and only one case, I had to go outside AppleCare.  The best  
route turned out to be through the institute's procurement  
department.  There is a single Apple higher education representative  
that takes all the orders from here via procurement.  That turns out  
to be a lot of orders (i.e. money), so there is more concern about  
resolving problems.  I wrote a detailed e-mail and received a  
positive reply that led to a full repair.  There may also be Apple  
higher education account executives and engineers working with your  
university.  They may be helpful as well.  Your work has undoubtedly  
helped to promote Macs and probably a few sales as a result.  I would  
suggest tactfully including this in your correspondence should it  
come to this.


If its not AppleCare, then I hope a similar approach would also work.

Best of luck,

Jeff



On Feb 8, 2007, at 3:04 PM, William Scott wrote:


Hi folks:

Sorry this is a wee bit off topic, but since I am more likely to  
get a straight answer from people here, I'm going to ask..


I have 2 identical laptops.  We bought both for the lab about 2  
years ago.  They are G4 ppc.  I bought an extra half gig of memory  
for each at the time of purchase, but I think it is from ramjet,  
not Apple.


Both drives failed within a few weeks of one another, making me  
wonder if they were really built by Ford.  The second one came back  
from Apple today with a snotty message saying that the third-party  
memory had caused the problem and that they will refuse to do a  
repair if we ever send them a computer in the future with a third- 
party memory chip in it.


This strikes me as absolute horse-hockey, but then again, maybe I  
am not aware of something I should be.


Thanks.

Bill



[ccp4bb] Converting TNT HKL Files to MTZ using CCP4I in CCP4 6.0.2

2007-02-08 Thread Dale Tronrud

Hi,

   I have a basic operational problem.  I am trying to convert a pair of
TNT HKL format files into an MTZ file using the CCP4I interface. (I realize
this is probably not the most heavily exercised code in the package.)
When I run the task I get the following output.

#CCP4I VERSION CCP4Interface 1.4.4.2
#CCP4I SCRIPT LOG import
#CCP4I DATE 08 Feb 2007  22:59:11
#CCP4I USER dale
#CCP4I PROJECT TST
#CCP4I JOB_ID 17
#CCP4I SCRATCH /tmp/dale
#CCP4I HOSTNAME terbium.uoregon.edu
#CCP4I PID 18342


#CCP4I TERMINATION STATUS 0 Error from script 
/usr/local/ccp4-6.0.2/ccp4i/scripts/import.script: can't read fo: no such 
variable
#CCP4I TERMINATION TIME 08 Feb 2007  22:59:11
#CCP4I MESSAGE Task failed

   I'm afraid I'm not fluent in TCL/TK.  Can anyone tell me what
I should do to get this working?

Thanks,
Dale Tronrud