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STRUCTURAL BIOLOGY & CRYSTALLOGRAPHY
X-Ray crystallography - John Pascal, PhD, KCC, TJU.
The X-ray Crystallography Shared Resource (XCSR) provides TJU investigators the ability to obtain structural information
directly relevant to their research interests. This includes the determination of de novo structures, structural
consequences of point mutations, co-crystallization with small molecules including inhibitors and potential therapeutics, and
multi-component systems including proteins, DNA and/or RNA. Although structure determination is a highly specialized,
labor-intensive endeavor, the information obtained from these investigations addresses seemingly disparate biochemical
data and invariably improves future research efforts.
The XCSR is located in a dedicated 1,200 sft laboratory located on the 8th floor of the Bluemle Life Sciences Building.
The facility houses 2 X-ray systems: a Rigaku RU200 generator with an R-AXIS II detector with MSC Blue Confocal Optics
on the right port and a state of the art RAXIS IV++ detector with MSC Blue Confocal Optics on the left port, and a Oxford
Diffraction UltraPX Ultra diffractometer with a 2.2 kW sealed tube X-ray source, a 4 circle diffractometer, a Onyx CCD
camera and a Cryojet. In addition, the facility houses a Matrix Technologies HydraII plus 1 crystallization robot
capable of 96 and 384 well trials and dispensing volumes as low as 200 nL. Incubators are multiple temperatures, and have
microscopes with photographic capabilities and crystal manipulation tools. The facility has several PCs running Linux as
well as a Mac dual G5. Each computer contains the relevant software for all aspects of structure determination.
Macromolecular X-ray crystallography - Brian Bahnson, PhD, Chemistry/Biochemistry, UD.
The X-ray crystallography facility offers state-of-the-art instrumentation to solve structures of biological macromolecules
from single crystals, and is open to researchers and collaborators. The protein crystallography core is funded by a NIH
COBRE (Center of Biomedical Research Excellence) grant from NIH. Dr. Brian Bahnson, Core Director, works closely with
multidisciplinary research groups to make optimal use of the macromolecular crystallography facilities for preliminary
studies of specific research projects. Outside industry users will be accommodated on a fee-for-service basis when
scheduling permits. Instruments include: Rigaku/MSC RU-H3R rotating anode X-ray generator offering a high brilliance
300 micron X-ray beam. The generator located in 314 Drake Hall is equipped with Osmic optics, which gives the beam a more
tightly focused and monochromatic beam. Rigaku/MSC R-axis IV image plate area detector is located in 314 Drake Hall. The
detector collects images that are 3,000 square pixels with a 100-micron pixel resolution. Data to a resolution of
1.4 Å has been collected on this X-ray system. X-stream Cryo-System for Data Collection at -180 °C: Data are
typically collected under cryo conditions using this self-contained X-stream cryo-system that includes an air compressor,
gas separation filter bank, He-refrigerated cryo system, and nozzle.
Structural biology - Steve Bai, PhD, Chemistry/Biochemistry, UD.
The NMR facility offers a suite of spectrometers in Brown Laboratory, and is open to researchers and collaborators.
Instruments are available for liquid-state and solid state NMR spectroscopy. In addition, the facility provides spectrometer
training and sample services to campus researchers, who may request instrument time or training. Instruments include: The
Bruker AMX360 spectrometer is equipped with a 5-mm QNP probe and a 5-mm broadband probe. Variable temperature ranges
from -70 °C to +150 °C. The Bruker AV400 spectrometer is equipped with an auto-sampler, which handles 60
samples. Remote access capability will facilitate use by other institutions of higher education in the region. The
Bruker DRX-400 spectrometer is equipped with a 5-mm QNP probe and a 5-mm broadband probe. Variable temperature
ranges from -70 °C to +150 °C. The Bruker AV600 spectrometer is equipped with a 5-mm inverse triple
resonance CryoProbe, a conventional 5-mm inverse triple resonance probe (ATM PTXI probe), and a 5-mm broadband probe. A
Dell Precision workstation (Linux Redhat 7.5 and Bruker xwinnmr 3.5) for off-line data processes
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