This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. As described and an allocation provided for in our first year grant renewal expenditures, we have acquired a 9T wide-bore magnet of the cryogen-free type for the ACERT 95 GHz spectrometer system. This unit, purchased from Cryogenic, Ltd., U.K., was installed in mid-April, 2008 and offers the benefits of both a sufficiently wide bore to accommodate a large NMR-style vacuum temperature insert (VTI) and, importantly, significant cryogen cost savings. The magnet system was initially expected to arrive in the fall season of 2007 but its delivery was delayed approximately 6 months for main coil reliability modifications and further testing. Although ACERT installation proceeded normally, with successful ramping to 9T, subsequent reliability issues with the main magnet power supply have delayed final commissioning of the magnet system. However, because the spectrometer itself is presently being rebuilt and upgraded, the magnet power supply repair/replacement downtime should not cause any additional experimental program delay. Several aspects of the spectrometer's design and configuration are affected by the transition to the new 9T magnet, and these are presently being addressed. Mechanically, the bridge, resonator and vacuum insert require an entirely new support structure that is also physically isolated from the magnet containment. To meet this requirement, a rigid framework based on heavy-duty extruded aluminum struts has been designed and will be fabricated and installed in late summer 2008. For field sweep control, a software module will be created and incorporated into the spectrometer control ensemble in order to communicate with the sweep power supply. Logging of critical magnet temperatures and field ramp profile by the spectrometer control system will be optionally implemented at a later date.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
2P41RR016292-11
Application #
8364021
Study Section
Special Emphasis Panel (ZRG1-BCMB-K (40))
Project Start
2011-09-01
Project End
2012-08-31
Budget Start
2011-09-01
Budget End
2012-08-31
Support Year
11
Fiscal Year
2011
Total Cost
$10,031
Indirect Cost
Name
Cornell University
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
872612445
City
Ithaca
State
NY
Country
United States
Zip Code
14850
Jain, Rinku; Vanamee, Eva S; Dzikovski, Boris G et al. (2014) An iron-sulfur cluster in the polymerase domain of yeast DNA polymerase ?. J Mol Biol 426:301-8
Pratt, Ashley J; Shin, David S; Merz, Gregory E et al. (2014) Aggregation propensities of superoxide dismutase G93 hotspot mutants mirror ALS clinical phenotypes. Proc Natl Acad Sci U S A 111:E4568-76
Georgieva, Elka R; Borbat, Peter P; Ginter, Christopher et al. (2013) Conformational ensemble of the sodium-coupled aspartate transporter. Nat Struct Mol Biol 20:215-21
Airola, Michael V; Sukomon, Nattakan; Samanta, Dipanjan et al. (2013) HAMP domain conformers that propagate opposite signals in bacterial chemoreceptors. PLoS Biol 11:e1001479
Airola, Michael V; Huh, Doowon; Sukomon, Nattakan et al. (2013) Architecture of the soluble receptor Aer2 indicates an in-line mechanism for PAS and HAMP domain signaling. J Mol Biol 425:886-901
Sun, Yan; Zhang, Ziwei; Grigoryants, Vladimir M et al. (2012) The internal dynamics of mini c TAR DNA probed by electron paramagnetic resonance of nitroxide spin-labels at the lower stem, the loop, and the bulge. Biochemistry 51:8530-41
Yu, Renyuan Pony; Darmon, Jonathan M; Hoyt, Jordan M et al. (2012) High-Activity Iron Catalysts for the Hydrogenation of Hindered, Unfunctionalized Alkenes. ACS Catal 2:1760-1764
Dzikovski, Boris; Tipikin, Dmitriy; Freed, Jack (2012) Conformational distributions and hydrogen bonding in gel and frozen lipid bilayers: a high frequency spin-label ESR study. J Phys Chem B 116:6694-706
Gaffney, Betty J; Bradshaw, Miles D; Frausto, Stephen D et al. (2012) Locating a lipid at the portal to the lipoxygenase active site. Biophys J 103:2134-44
Maeda, Kiminori; Lodge, Matthew T J; Harmer, Jeffrey et al. (2012) Electron tunneling in lithium-ammonia solutions probed by frequency-dependent electron spin relaxation studies. J Am Chem Soc 134:9209-18

Showing the most recent 10 out of 72 publications