Abstract

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. High field EPR is a useful tool for investigating change transfer complex formation between unsubstituted o-semiquinones and different organic compounds (quercetin, cyclodextrin, albumin) The formation of charge transfer complexes was verified by observation of the optical spectrum of the charge transfer band. The high-field EPR spectra reveal for the first time a well-resolved g-tensor with a unique fingerprint for every type of complex. Subsequent work will use high-field EPR and quantum chemistry in order to calculate the exact structure of the complex in order to develop a spectral library for identifying various biological molecules containing charge transfer complexes.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR016292-09
Application #
7956712
Study Section
Special Emphasis Panel (ZRG1-BCMB-K (40))
Project Start
2009-09-01
Project End
2010-08-31
Budget Start
2009-09-01
Budget End
2010-08-31
Support Year
9
Fiscal Year
2009
Total Cost
$16,058
Indirect Cost

  Institution

Name
Cornell University
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
872612445
City
Ithaca
State
NY
Country
United States
Zip Code
14850

  Publications

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
Yang, Zhongyu; Liu, Yangping; Borbat, Peter et al. (2012) Pulsed ESR dipolar spectroscopy for distance measurements in immobilized spin labeled proteins in liquid solution. J Am Chem Soc 134:9950-2
Yu, Long-Xi; Dzikovski, Boris G; Freed, Jack H (2012) A protocol for detecting and scavenging gas-phase free radicals in mainstream cigarette smoke. J Vis Exp :e3406
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
Smith, Andrew K; Freed, Jack H (2012) Dynamics and ordering of lipid spin-labels along the coexistence curve of two membrane phases: an ESR study. Chem Phys Lipids 165:348-61
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

Showing the most recent 10 out of 72 publications