Abstract

The research in my lab has focused on the structure determination of (i) bacterial channel-forming toxins, such as Staphylococcal leukocidin (LukF) and (ii) the ligand binding domain of ligand gated ion channels. Data from the F2 beamline has enabled us to solve the structure of the water-soluble form of LukF and the ligand binding domain of the GluR2, AMPA-selective glutamate receptor. Both structures were solved by MAD phasing from selenomethionine crystals at ~2.3 A resolution. Presently, both structures have been refined and we are currently in the process of manuscript preparation. From these structures we have furthered our understanding, at the molecular level, of the conformational changes that bacterial toxins undergo as a consequence of membrane binding and oligomerization and we have provided, for the first time, a view of the extracellular domain of a ligand gated ion channel.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR001646-20
Application #
6667796
Study Section
Project Start
2002-09-30
Project End
2003-08-14
Budget Start
Budget End
Support Year
20
Fiscal Year
2002
Total Cost
$142,703
Indirect Cost

  Institution

Name
Cornell University
Department
Type
DUNS #
City
Ithaca
State
NY
Country
United States
Zip Code
14850

  Publications

Kozlov, Guennadi; Wong, Kathy; Gehring, Kalle (2018) Crystal structure of the Legionella effector Lem22. Proteins 86:263-267
Ménade, Marie; Kozlov, Guennadi; Trempe, Jean-François et al. (2018) Structures of ubiquitin-like (Ubl) and Hsp90-like domains of sacsin provide insight into pathological mutations. J Biol Chem 293:12832-12842
Xu, Jie; Kozlov, Guennadi; McPherson, Peter S et al. (2018) A PH-like domain of the Rab12 guanine nucleotide exchange factor DENND3 binds actin and is required for autophagy. J Biol Chem 293:4566-4574
Dean, Dexter N; Rana, Pratip; Campbell, Ryan P et al. (2018) Propagation of an A? Dodecamer Strain Involves a Three-Step Mechanism and a Key Intermediate. Biophys J 114:539-549
Chen, Yu Seby; Kozlov, Guennadi; Fakih, Rayan et al. (2018) The cyclic nucleotide-binding homology domain of the integral membrane protein CNNM mediates dimerization and is required for Mg2+ efflux activity. J Biol Chem 293:19998-20007
Lucido, Michael J; Orlando, Benjamin J; Vecchio, Alex J et al. (2016) Crystal Structure of Aspirin-Acetylated Human Cyclooxygenase-2: Insight into the Formation of Products with Reversed Stereochemistry. Biochemistry 55:1226-38
Bauman, Joseph D; Harrison, Jerry Joe E K; Arnold, Eddy (2016) Rapid experimental SAD phasing and hot-spot identification with halogenated fragments. IUCrJ 3:51-60
Xu, Caishuang; Kozlov, Guennadi; Wong, Kathy et al. (2016) Crystal Structure of the Salmonella Typhimurium Effector GtgE. PLoS One 11:e0166643
Cogliati, Massimo; Zani, Alberto; Rickerts, Volker et al. (2016) Multilocus sequence typing analysis reveals that Cryptococcus neoformans var. neoformans is a recombinant population. Fungal Genet Biol 87:22-9
Oot, Rebecca A; Kane, Patricia M; Berry, Edward A et al. (2016) Crystal structure of yeast V1-ATPase in the autoinhibited state. EMBO J 35:1694-706

Showing the most recent 10 out of 375 publications