Hi,
I tried to find out a correct space group using the program Zanuda.
Surprisingly, Zanuda suggested a space group P42212 but not P21 and cubic
ones. The unit cell of P42212 was 104.240 104.240 104.209 90.00 90.00
90.00. The number of molecules in an AU was 1, while there were 4 molecules
crystal which weighted between 0.5 - 1.0 kg.
It grew suspend on a mountain boots shoelace of the read colour.
Sounds like a crystallographic legend, beautiful but never achievable…
Happy Halloween!
Alexander Aleshin
Sanford-Burnham Medical Research Institute
La Jolla, California
On Oct 25, 201
On Oct 25, 2013, at 11:14 , David Roberts wrote:
> Hello all,
>
> OK - small school - old NMR (really old). We set this up around 14 years ago
> with an O2 system as the user interface, with an indigo system as the
> interface between the O2 and the NMR. This is a JEOL system, has really bee
Does this help?
http://www.nekochan.net/wiki/Headless
Not sure, how you'd set it to output to the serial port with the commands
if you can't see what you're doing in the first place though. Otherwise
you'll have to look for a graphics card that'll work in an indigo, a ps/2
keyboard & mouse, and a
Hello all,
OK - small school - old NMR (really old). We set this up around 14
years ago with an O2 system as the user interface, with an indigo system
as the interface between the O2 and the NMR. This is a JEOL system, has
really been a workhorse with little issues over the last 14 years.
Is that a glycine in the sequence next to the Glu/Gln? Have you tried building
a 50% occ of the backbone in that region in two conformations, and then a water
molecule further up into the feature. The density over the carbonyl looks weak
and you have some negative density there that might indi
Dear All,
I'm refining an X-ray structure to 1.6A resolution in BUSTER-TNT v2.10.
The model is pretty much finished but I see a strange electron density
that I can't imagine what it is.
Please take a look at four snapshots in
http://www.itqb.unl.pt/~jbrito/ITQB/ . Any pointers/guesses are mos
Dear CCP4 Users,
An update for the new CCP4-6.4.0 series has just been released, consisting of
the following changes:
• Qt libraries (Mac, Linux): critical fixes for some Mac OSX setups and for KDE
desktops
• TclTk libraries (Linux): recompiled to be made functional on CentOS4
• TclTk libraries
Felix,
Although I have passed through George's lab at UCSD several times, I have not
seen that crystal, but it should be pointed out that George's interests did
extend beyond photosynthesis. Some of us older folks remember George's
contributions to protein crystal growth, both theoretical and
I guess that this crystal was never tested with any X-ray source. After all
George is a physicist who study photosynthesis processes by spectroscopic
methods.
However (unrelated but connected) I have collected once a data set from a see
urchin needle which was 1 cm long, about 3 mm across (p
Rojan Shrestha wrote:
What is the tool in CCP4 to calculate F from F(+) and F(-) with their
standard deviations?
mtzMADmod
Hi Felix,
What was the mosaicity of this crystal? The absorption correction must have
been challenging too...
Derek
On 25 Oct 2013, at 13:23, Felix Frolow
mailto:mbfro...@post.tau.ac.il>> wrote:
Well if we start recalling rumours, I have heard that in UC San Diego in the
laboratory of Geo
Well if we start recalling rumours, I have heard that in UC San Diego in the
laboratory of George Feher there was (is) a tetragonal hen egg white lysozyme
crystal
which weighted between 0.5 - 1.0 kg.
It grew suspend on a mountain boots shoelace of the read colour.
I have never visited Georg
Dear All,
I would like to inform you that a postdoctoral position is available at
the EMBL Hamburg Unit in the research group of Dmitri Svergun.
I attach a brief description of the Vacancy Notice below. Deadline for
application is 15th December 2013.
Further Detailed Information can be found un
Hi Sangheon
As others have said, there is nothing that stops a cell being monoclinic with
those cell dimensions - indeed, there is nothing stopping it being triclinic,
orthorhombic or tetragonal either (or even rhombohedral, for those of us who
like to describe it with non-hexagonal axes).
Wh
Dear Sangheon,
you don't say which cubic space group you tried, perhaps you tried the wrong
one? Did Pointless indicate a clear preference?
Between P23 and P213 for instance you can tell by systematic absences along h
(if they were collected ok), but between I23 and I213 the only option is to try
Hi, Referring to the Hb crystal that Bill Scott saw in the MRC crystal growing room (by now "tho old one" I guess), is that the one that was sitting in the largest part of the Pasteur pipette? I recall this one and I keep telling my students about it when
they ask about crystal size limit
That won't work. Aimless expects intensities not Fs. I would think you could do
it with sftools
Phil
On 25 Oct 2013, at 09:54, Tim Gruene wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Dear Rojan,
>
> I would try aimless with the option 'onlymerge'.
>
> Best,
> Tim
>
> On 10/
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Dear Rojan,
I would try aimless with the option 'onlymerge'.
Best,
Tim
On 10/25/2013 09:33 AM, Rojan Shrestha wrote:
> Hello,
>
>
>
> What is the tool in CCP4 to calculate F from F(+) and F(-) with
> their standard deviations?
>
>
>
> Regards,
The deadline for applications for travel bursaries for students and young
post-docs from non-UK laboratories to help them to attend the CCP4 Study
Weekend is drawing close. A reminder all applications must be received by 31st
October 2013.
More details (taken from Study Weekend website) are de
Dear Sangheon,
there is no law that forbids P21 crystals to have a~b~c and beta~90°. It only
does not happen very often. So your solution can be correct. You may want to
analyze your crystal packing with ccp4 program Zanuda, to see if a higher
symmetry space group could be used.
Best regards,
H
You could try putting this into the Zanuda server
http://www.ysbl.york.ac.uk/YSBLPrograms/
which will search for possible correct spacegroups given the coordinates
and structure factors. There are however no reasons why you can't have a
pseudo-cubic monoclinic lattice, however "unlikely" it is.
Hello,
What is the tool in CCP4 to calculate F from F(+) and F(-) with their
standard deviations?
Regards,
Rojan
Hi Derek,
That brings back memories. I am pretty certain that is the myoglobin crystal
that was already on Benno's shelf at Brookhaven when I went there in 1980 to
collect my oxymyoglobin neutron data. It would the metmyoglobin crystal Benno
got the early neutron data from. He just kept it o
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