Ilya Bezprozvanny received M.Sci in Physics (1989) from the Leningrad Polytechnic Institute and PhD in Cell Biology (1992) from the Institute of Cytology Russian Academy of Sciences (scientific advisors - Alex P. Naumov and Galina N. Mozhayeva). As a part of his training, Ilya worked with Barbara E. Ehrlich (1990-1994) in the University of Connecticut Health Center at Farmington, Connecticut and then with Richard W. Tsien (1994-1996) in the Department of Molecular and Cellular Physiology at the Stanford University Medical Center, Stanford, California. In 1996 Ilya joined the UT Southwestern Medical Center faculty as an Assistant Professor. This is how our lab started.
Dept of Physiology
ND12.502B
UT Southwestern Medical Center at Dallas
5323 Harry Hines Blvd.
(for FedEx: 6001 Forest Park)
Dallas, TX
75390-9040
Telephones:
(214) 645-6017 (Ilya's office, ND12.502B)
(214) 645-6016 (Main Lab, ND12.136)
(214) 645-6006 (Imaging/BLM, ND12.221-223)
Fax: (214) 645-6018 (Lab office, ND12.502)
Our administrative associate is Leah Benson
Janet is at
ND12.120; tel: 214-645-5920; fax: (214) 645-6019,
e-mail: Leah.Benson@UTSouthwestern.edu
Members of the lab:
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Ilya Bezprozvanny, Ph.D.
Ilya is from St. Petersburg, Russia. |
Huarui ("Kelly") Liu, M.D..
Kelly is from Xian, Shanxi province, China. |
Suya Sun, Ph.D.
Suya is from Zhengzhou, Henan province, China. |
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Hewen Ma, Ph.D.
Hewen is from Changchun, Jilin province, China. |
Hua Zhang, Ph.D.
Hua Zhang is from Tajan, Shandong province, China. She received her Ph.D. (2002) in Biochemistry and Molecular Biology (scientific advisor Prof. Cheng-Chao Shou) from Peking University Health Science Center in Beijing. Hua joined our lab in October 2002 as a postdoctoral fellow. |
Tie-Shan Tang, Ph.D.
Tie-Shan is from Dingzhou, Hebei province, China. He received his M.Sci. (1994) from Northwestern Agricultural University in Shanxi, his PhD (1998) in Cell and Developmental Biology (scientific advisor Prof. Fang-Zhen Sun) from the Institute of Developmental Biology, CAS in Beijing, where he then worked until joining our lab in July 2000. Since 2006 Tie-Shan holds an Instructor position. |
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Xue-Song Chen, Ph.D.
Xue-Song is from Tianjin city, China. |
Xi ("Tracy") Chen, Ph.D.
Tracy is from Tonghua, Jilin province, China. |
Omar Nelson, B.Sci.
Omar is from Portland, Jamaica. |
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Jun Wu, Ph.D.
Jun is from Wuhan, Hubei province, China. |
Jing Liu, Ph.D.
Jing is from Kunming, Yunnan province, China. |
Emin Ozkan, B.Sci.
Emin is from Istanbul, Turkey. |
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Hongyu Wang, M.D., Ph.D.
Hongyu is from Jilin, Jilin province, China. |
Yuemei ("Mei") Li, M.Sci.
Mei is from Shihezi, Xinjiang province, China. |
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| Ilya.Bezprozvanny@UTSouthwestern.edu
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Former members of the lab:
Vitalie Lupu, M.D. (September 1996 -
October 1998)
Elena Kaznacheyeva, Ph.D. (April 1997- April 1998)
Lyuba
Glouchankova, M.Sci. (March 1998 - June 1999) Ph.D. (2004)
Elena Nosyreva, Ph.D. (September 1999 - March 2002)
Anton Maximov, Ph.D. (May 1997 - June 2002)
Xiaohong Shen, B.Sci. (August 2001 - July 2002)
Fang Xu, Ph.D. (August 2002 - May 2003)
Sonal Srikanth (Patel), M.Sci. (September 2002 - July 2003) Ph.D. (2004)
Zhengnan (Nan) Wang, B.Sci. (June 1999 - February 2004)
Yu Fu ("Vicky"), M.Sci. (March 2004 - June 2006)
Yali Zhao, M.D., Ph.D (September 2005 - August 2006)
Tianhua Lei, B.A. (December 2003 - December 2006)
Huiping Tu, Ph.D. (December 2000 - September 2007)
Xiangmei Kong, M.Sci., M.D. (November 2006 - January 2008)
Qin Li, M.D., Ph.D. (July 2006 - June 2008)
Research in our lab is supported by the grants from the Welch Foundation, the McKnight Endowment Fund for Neuroscience, the High Q Foundation, the Ataxia MJD Research Project, the Alzheimer’s Association, the Department of Defence, and the NINDS at National Institutes of Health.
Our main interest is in calcium signaling. Calcium ion (Ca2+) acts as an intracellular second messenger in living cells. Changes in the cytosolic Ca2+ level influence most fundamental cellular processes. Deranged calcium signaling results in a number of disorders. Local and rapid changes in cytosolic Ca2+ are evoked by activation of plasma membrane voltage-gated Ca2+ channels in response to membrane depolarization. Global changes in cytosolic Ca2+ are supported by intracellular Ca2+ release channels - the inositol (1,4,5)-trisphosphate receptor (InsP3R) and ryanodine receptor (RyanR). The functional properties and modulation of intracellular Ca2+ release channels and voltage-gated Ca2+ channels is the focus of our research.
The main directions of our research are: 1. Structure-function and modulation of InsP3R.Several InsP3R isoforms and splice variants have been isolated,
but the functional differences between different InsP3R subtypes are
not known. To adress this problem, we set up functional expression of
InsP3R in a heterologous expression system and characterize
functional properties of recombinant InsP3R1 in planar lipid
bilayers [2]. Using this method, we identified key structural determinants of InsP3R function [10, 11, 15, 19, 22, 23, 24]. We collaborate with the laboratories of Prof. Masamitsu Iino [8, 10, 11, 15], Prof. Gaiti Hasan [19, 22] and Prof Humbert De Smedt [23] on this project.
Using yeast two-hybrid and biochemical techniques, we identified a number of InsP3R1 neuronal binding partners [13, 14, 18]. Our results provided new insights into InsP3R1 function in the brain and suggested novel connections between InsP3R1 and dopaminergic signaling in the striatum [13, 21].
In the nervous system secretion of neurotransmitter is triggered by Ca2+ influx via presynaptic voltage-gated Ca2+ channels. Synaptic transmission is strongly affected by changes in behavior of these channels. In collaboration with the laboratory of Prof. Thomas C. Südhof we discovered that carboxy-terminal region of Ca2+ channels binds to the Mint1-1 PDZ domain and CASK-SH3 domain in yeast 2-hybrid and biochemical experiments [3]. Discovered interactions create a potential for formation of Ca2+ channel/mint1/CASK ternary complex and recruitment of N-type and Q-type Ca2+ channels to a marcomolecular signaling complex assembled at synaptic junction. We use biochemical, imaging, electriophysiological and genetic methods to test proposed model experimentally [12]. This work also prompted us to examine general rules that govern PDZ domain ligand specificty using the bioinformatics approach [9] and develop a high-throughput screen for small molecule PDZ domain inhibitors [37].
Recently we extended the same approach to postsynaptic L-type calcium channels. In a collaborative study with the laboratory of Prof. D. James Surmeier we discovered that CaV1.3 L-type calcium channels bind to Shank postsynaptic modular adaptor protein and demonstrated that CaV1.3-Shank association is important for targeting of L-type channels to PSD, signaling to pCREB nuclear transription factor and modulation of L-type channels by G-protein coupled receptors [25, 26, 30].
For the list of publications prior to 1998 please look at Ilya's CV at COS profile
This page was last updated on July 23, 2008
This site is maintained by Ilya Bezprozvanny who would
very much appreciate you questions, comments, and suggestions.