Biophysical Society 61st Annual Meeting | Program Guide

520-Pos

Board B285

507-Pos Board B272 CARDIOMYOCYTE FUNCTIONAL KINETIC RESERVE IS LOST IN AN OS- SABAW SWINE MODEL OF HEART FAILURE WITH PRESERVED EJECTION FRACTION. Adam B. Veteto , John L. Jones, Joel C. Robinett, T. Dylan Olver, Jenna C. Edwards, Michelle D. Lambert, Pamela K. Thorne, Maike Krenz, Kerry S. McDonald, Jaume Padilla, David A. Ford, Christopher Baines, R. Scott Rector, Craig A. Emter, Timothy L. Domeier 508-Pos Board B273 HEART FAILURE RE-DISTRIBUTES PHOSPHOLAMBAN BETWEEN NUCLEAR MEMBRANES AND SARCOPLASMIC RETICULUM IN CARDIOMYO- CYTES. Zhipeng Tian, Yan Li, Peng-Sheng Chen, Steven Cala, Zhenhui Chen 509-Pos Board B274 THE EFFECT OF OVARIECTOMY ON CALCIUM (CA 2+ ) HANDLING IN GUINEA PIG CARDIOMYOCYTES. Hsiang-Yu Yang , Anita Alvarez-Laviada, Jahn M. Firth, Alice J. Francis, Kenneth T. MacLeod 510-Pos Board B275 BIOCHEMICAL AND MECHANICAL PROPERTIES OF MURINE EXTRAOCU- LAR MUSCLES. Jan Eckhardt, Marijana Sekulic-Jablanovic, Susan Treves, Francesco Zorzato 511-Pos Board B276 THE MAINTENANCE ABILITY AND CA 2+ AVAILABILITY OF SKELETAL MUS- CLE ARE ENHANCED BY SILDENAFIL. Mei Huang , Keon Jin Lee, Kyung-Jin Kim, Mi Kyoung Ahn, Chung-Hyun Cho, Do Han Kim, Eun Hui Lee 512-Pos Board B277 DANTROLENE SHIFTS THE AFFINITY OF THE RYANODINE RECEPTOR FOR MG 2+ . Rocky H. Choi, F. Xaver Konig, Tanya R. Cully, Bradley S. Launikonis 513-Pos Board B278 MG53 INTERACTS WITH CARDIOLIPIN TO PROTECT MITOCHONDRIA FROM ISCHEMIA-REPERFUSION INDUCED OXIDATIVE STRESS. Hanley Ma, Xinyu Zhou, Xinxin Wang, Junwei Wu, Kristyn Gumpper, Tao Tan, Timothy Ayodele Adesanya, Chunlin Yang, Yongqiu Zheng, Heather Chandler, Jingsong Zhou, Jianjie Ma, Hua Zhu Voltage-gated Na Channels I (Boards B279–B298) 514-Pos Board B279 DOMAIN SPECIFIC ROLE OF S4 FOR STEPPING INTO AND RECOVERING FROM THE INACTIVATED STATE AS OBTAINED FROM OMEGA- AND R4H MUTANTS IN NAV1.2. Nikolaus Guenter Greeff , Hansjakob Heldstab, Claudia Lehmann 515-Pos Board B280 DIVERGENCE IN DOMAIN IV OF AN ELECTRIC FISH NA V CHANNEL TUNES ITS FAST INACTIVATION TO SUPPORT RAPID FIRING RATES BY ELECTRO- MOTORNEURONS. Daniel Thomas Infield , Ammon Thompson, Troy Smith, Harold H. Zakon, Christopher A. Ahern 516-Pos Board B281 ROLE FOR FAST INACTIVATION IN DOMAIN I OF VOLTAGE GATED SODIUM CHANNELS.  James R. Groome , Ryann Camp 517-Pos Board B282 EFFECTS OF CYSTEINE SUBSTITUTIONS IN D1-S6 ON FAST AND SLOW INACTIVATION IN NAV1.4.  John O’Reilly , Penny Shockett 518-Pos Board B283 MOLECULAR MECHANISMS OF CARDIACVOLTAGE-GATED NA + CHANNEL REGULATION BY ACIDIC PH. Bicong Li , Wandi Zhu, Jon Silva 519-Pos Board B284 OMEGA MUTATIONS ALONG S4 IN NAV1.2 CHANNELS GIVE INSIGHT INTO DOMAIN SPECIFIC CONTRIBUTION TO ACTIVATION AND STEADY STATE INACTIVATION. Claudia Lehmann , Hansjakob Heldstab, Nikolaus Guenter Greeff

CHARACTERIZATION OF A NA V 1.5 GAIN-OF-FUNCTION MUTATION (G213D) CAUSING MULTIFOCAL ATRIAL AND VENTRICULAR PREMATURE ECTOPIES AND AN INCREASED RISK OF DILATED CARDIOMYOPATHY.  Kirstine Calloe , Anders K. Broendberg, Alex H. Christensen, Lisbeth N. Pedersen, Morten S. Olesen, Maria A. Tejada, Soren Friis, Morten B. Thomsen, Henning Bundgaard, Henrik K. Jensen 521-Pos Board B286 VOLTAGE-GATED SODIUM CHANNEL MUTATIONS CAN EXERT DOMINANT- NEGATIVE SUPPRESSION BY COUPLED GATING.  Jerome Clatot , Aurore Girardeau, Celine Marionneau, Isabelle Deschenes 522-Pos Board B287 OPEN AND CLOSED STATES OF THE NA V AB ACTIVATION GATE. Michael Lenaeus , Tamer M. Gamal El-Din, Karthik Ramanadane, Ning Zheng, Wil- liam A. Catterall 523-Pos Board B288 IN VITRO SINGLE-MOLECULE STUDY OF NACHBAC USING PLANAR LIPID BILAYER DEVICE. Hiofan Hoi , Andrew Jo, Manisha Gupta, Carlo D. Monte- magno 524-Pos Board B289 CONTROL OF SLOW, USE DEPENDENT INACTIVATION OF NA V AB BY ITS C TERMINAL TAIL. Tamer M. Gamal El-Din , Michael J. Lenaeus, Karthik Ramanadane, Ning Zheng, William A. Catterall 525-Pos Board B290 ROLE OF CHANNEL FLUCTUATIONS IN ION TRANSPORT AND SELECTIVITY IN BACTERIAL SODIUM CHANNEL NAVAB. Christopher Ing , Nilmadhab Chakrabarti, Ning Zheng, William A. Catterall, Régis Pomès 526-Pos Board B291 AN OPEN STATE MODEL OF THE NAVAB CHANNEL EXPLORED BY ROSETTA AND MOLECULAR DYNAMICS SIMULATION. Phuong T. Nguyen , Kevin R. DeMarco, Igor Vorobyov, Coleen E. Clancy, Toby W. Allen, Vladimir Yarov- Board B292 SIMULATING THE ACCESS AND BINDING OF SUBTYPE SELECTIVE SODIUM CHANNEL INHIBITORS. Ben Corry 528-Pos Board B293 PROPOFOL IS A POTENT GATING MODIFIER OF VOLTAGE-GATED SODIUM CHANNELS. Elaine Yang , Daniele Granata, Roderic Eckenhoff, Vincenzo Carnevale, Manuel Covarrubias 529-Pos Board B294 THE SODIUM ION BINDING REGION AT THE FOCUS OF P1 HELICES AT- TRACTS BOTH CHARGED AND ELECTRONEUTRAL LIGANDS OF SODIUM CHANNELS. Denis B. Tikhonov, Boris S. Zhorov 530-Pos Board B295 COMPARISON OF ION SELECTIVITY MECHANISMS IN BACTERIAL AND MAMMALIAN SODIUM CHANNELS. Emelie Flood , Céline Boiteux, Toby Board B296 HOW C-TERMINAL DOMAIN STABILIZE THE GATE OF VOLTAGE-GATED SODIUM CHANNELS. Song Ke , Bonnie Ann Wallace, Jakob Ulmschneider, Martin Ulmschneider 532-Pos Board B297 MOLECULAR MODELİNG OF MAMMALIAN NAV1.4 CHANNEL. Ali O. Acar , Esra Korpe, Murat Cavus, Serdar Kuyucak, Turgut Bastug 533-Pos Board B298 MECHANISM AND ENERGETICS OF ION AND TETRODOTOXIN BINDING TO NAVMS CHANNEL. Esra Korpe , Ali Osman Acar, Murat Cavus, Serdar Kuyucak, Turgut Bastug Yarovoy 527-Pos W. Allen 531-Pos

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