Dear All,
I would like to draw your attention to the following position currently open at
Diamond to establish and run a crystallography service for industrial users of
the synchrotron.
Regards
Elizabeth
An exciting research opportunity in the ion channel structure and
mechanism area is available for a highly motivated post-doctoral
fellow at the Weill Medical College of Cornell University in New York
City, Department of Anesthesiology. The research focuses on analyzing
ion channel function
Alfredo,
It's not clear from your email what your purpose is: to illuminate a
crystal/sample on a microscope stage or on a goniostat. In either
case, you might check out Ocean Optics (http://
www.oceanoptics.com/). They have based their systems on fiber optic
light sources and CCD
An exciting research opportunity in the ion channel structure and
mechanism area is available for a highly motivated post-doctoral
fellow at the Weill Medical College of Cornell University in New York
City, Department of Anesthesiology. The research focuses on analyzing
ion channel function
Hello,
You may want to have a look at the UV LEDs, which should be the cheapest
option if you only need a specific wavelenth.
I found this on google: http://www.3dzled.com/other.html. It seems that they
can make 280nM LEDs. It is interesting to note that they also said these
LEDs'
I put an array of UV LEDS on a ceramic block and connected to a power source,
as a means of detecting very small crystals once they are in the loop. The
most difficult part was supporting the LED block so that it shone onto the loop
but did not obstruct the user. The so-called UV LEDS are
On 14 May, Mark Del Campo wrote:
At what refinement resolution or resolution ranges would you call a structure
high resolution vs.
low resolution? I realize that this may boil down to semantics (e.g. some
may classify structures as
medium resolution), but I wanted to get an opinion from
Research Associate II, Crystallization
CRYRA2-08
Research Associate II, Crystallization
SGX Pharmaceuticals is an innovative San Diego-based biotechnology
company focused on the discovery, development and commercialization of
novel, targeted therapeutics directed at addressing unmet
On behalf of the organizers, Maria Armenia Carrondo and Thomas R. Schneider
COURSE ANNOUNCEMENT - BIOCRYS 2008
Fundamentals of Modern Methods in Biocrystallography - 'What you
always wanted to know about crystallography but never dared to ask'
http://biocrys.itqb.unl.pt
4th - 11th October
Actually, if you want to feel really good, I learned (in the context
of optics) that you can resolve two points separated by a distance x
with a diffraction limit of x/0.7, so this means you can start to see
carbon - carbon atomicity at 2.2 Å.
On May 15, 2008, at 10:12 AM, Gloria Borgstahl
On Thu, 15 May 2008, William Scott wrote:
On May 15, 2008, at 10:01 AM, Ed Pozharski wrote:
1.2A (not surprisingly since this is about the length of covalent
bond).
A carbon-carbon single bond is about 1.55 Å.
the van der Waals radius of hydrogen is 1.2A (Eisenberg/Crothers, Pauling,
1960
I don't think the term high resolution has any real definition or
meaning anymore. If you're proud of the resolution, put the number in
the title of the paper and let the reader decide. At one time 2 A was
high resolution, but I wouldn't consider that high resolution today
for a plain
Optical reconstructions are intensity based.
Xtallographic FT are amplitude based.
The theoretical value for xray is about 0.9*dmin.
Reading:
Stenkamp, R.E. and L.H. Jensen. 1984 Resolution revisited. Acta Cryst., A40,
251-254.
and the SFCHECK paper for other considerations
Vaguine AA, Richelle J,
Of course. However, C=0 bond is ~1.2A, and bonds made by those pesky
hydrogens are ~1A. And I would think (it is semantics again) that to
reach atomic resolution you have to resolve all atoms, otherwise
All atoms are equal, but some (non-hydrogens) are more equal than
others.
Cheers,
Ed.
On
Sure, it has very little to do with original question about what
constitutes high resolution. And that term is quite relative. 1.8A
data is definitely of higher resolution than 2A, but is it high? (Not
to mention the issue of subjective choice of resolution cutoff). The
only way to define
We are about to release an all-LED based UV microscope for automated
scanning of 96-well plates. Please contact me if you are interested.
Thanks,
V. Nagarajan
JAN Scientific, Inc.
Seattle, WA, USA.
-Original Message-
From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of Li
Colleagues,
I'll appreciate if following advertisement will be brought to attention
of qualified researchrs.
An exciting research opportunity is available at MedImmune, Inc. (now
part of AstraZeneca, Plc.) for a self motivated B.S. or M.S. level
Scientist to contribute to ongoing projects that
On May 15, 2008, at 12:40 PM, Ed Pozharski wrote:
I was just trying to
protect poor creatures, after all they [hydrogens] only got one
electron to hold on
to (:-)
Ed.
A less radical view (pun intended) suggests two. ;)
Doesn't this just change the question to what observation:parameter ratio is
needed for my structure to be over-determined??
As near as I'm aware, the answer to that one seems to be as many observations
as you get.
Pete
-Original Message-
From: CCP4 bulletin board on behalf of [EMAIL
*Structural Genomics Crystallization*
A technician position is now available at the Albert Einstein College of
Medicine to participate in the the New York Structural Genomix Research
Consortium (NYSGXRC; www.nysgxrc.org). The NYSGXRC is one of four
NIH-funded high
*Protein Expression Laboratory*
A position is available immediately in the Macromolecular
Therapeutics/Protein Production Facility at the Albert Einstein College
of Medicine. This facility is housed within the new Center for Genetic and
Translational Medicine at the
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