ACA2009 TORONTO SESSION LIST AS OF DECEMBER17, 2008 01.01 Exciting Structures (BioMac) Session Organizer(s): Zhe Yang, Ladislau Kovari Session Focus: The session will focus on crystal structures of multisubunit biological complexes and membrane proteins both of which present exceptional challenges on sample preparation and structure determination. Invited Speakers: Rongsheng Jin, Burnham Institute, USA, www.burnham.org/default.asp?contentID=539 David Dude, St. Jude Children's Research Hospital, USA www.stjude.org/schulman 01.05 Chromatin Remodeling (BioMac) Session Organizer(s): Jinrong Min, Jean-François Couture (jean-francios.couture@uottawa.ca) Session Focus: Structure-function relationship of chromatin proteins involved in modifying chromatin structure and controlling gene expression. Invited Speakers: Xiaodong Cheng, Dept. of Biochemistry, Emory Univ. School of Medicine, USA www.biochem.emory.edu/cgibin/people/detail_faculty?id=xcheng Ronen Marmorstein, The Wistar Institute, USA www.wistar.org/marmorstein/ Rui-ming Xu, Dept. of Pharmacology, New York Univ., USA www.med.nyu.edu/people/xur02.html Raymond C. Trievel, Dept. of Biological Chemistry, Univ. of Michigan, USA www.biochem.med.umich.edu/?q=rtrievel 05.01 Cool Structures (Small Molecule) Session Organizer(s): Peter Müller, MIT, Boston, MA (pmueller@mit.edu). Session Focus: Papers are invited pertaining to "Cool Structures". This topic includes but is not limited to high Z' structures, interesting packing and bonding motifs, alternative and useful crystallization techniques and unusual or otherwise interesting structural features. In fact, anything that you may consider to be cool, neat or otherwise interesting crystallographically can be a "Cool Structure". 06.02 Shape-Memory Materials (Neutron, Materials) Session Organizer(s): Steve Shapiro, Brookhaven National Laboratory Session Focus: A fundamental property of Shape Memory Materials (SMM) is the structural phase transition from the high temperature parent phase to the low temperature martensite phase. This session will explore the driving mechanism of the transformation and the multiscale properties of the materials ranging from the smallscale atomic arrangements to the larger scale domain distributions and their relationships to the engineering applications of SMM. The modification of the transformation due to external perturbation such as stress, magnetic field, etc. will also be discussed Invited Speakers: Winfred Petry, Technical Univ., Munich, Germany Don Brown, Los Alamos National Laboratory, USA 06.03 Complementary Methods for Macromolecular Crystallography (Synchrotron, SAS, BioMac) Session Organizer(s): Hiro Tsuruta, Stanford Univ., Wah Chiu, Baylor College of Medicine (wah@bcm.edu) Session Focus: This session is intended to display new advances in structural techniques complementary to xray crystallography, including small angle scattering, electron microscopy and computational modeling methods. Invited Speakers: Dmitri Svergun, European Molecular Biology Laboratory, Hamburg, Germany Matthew Baker, Bay College of Medicine Sriram Subramanian, National Cancer Institute 06.05 Structure-based Drug Design (BioMac, Indust) Session Organizer(s): Duncan McRee, Eddy Arnold (arnold@cabm.rutgers.edu) Session Focus: Structure-based drug design is an integral component of today’s drug discovery process and has been used to help design many important medicines on the market today. This session will present examples of using structure to find new hits using fragment-based screening methods and in improving hits and leads using structure. Papers from both academia and industry are invited. The intention is to fill the session mostly with submitted papers. Invited Speakers: Duncan McRee, Sorrento Technologies, “Introduction to fragment-screening and structure-based drug discovery” Eddy Arnold, Center for Advanced Biotechnology and Medicine, and Rutgers Univ., “Structure-based drug design targeting multiple sites on HIV-1 reverse transcriptase” 06.06 Instrumentation - Sources, Optics, Detectors (BioMac, Synchrotron) Sessions Organizer(s): Marc Allaire (allaire@bnl.gov), Craig Ogata (ogata@anl.gov) Sessions Focus: Recent developments and future plans for X-ray sources, optics, data collection equipment, robotics and detectors. Invited Speakers: Robert Fischetti, Ruslan Sanishvili (Nukri), ANL, USA http://www.gmca.anl.gov "Microdiffraction and studies of radiation damage at GMCA" Jerry Hastings, SLAC, USA http://lcls.slac.stanford.edu "Linac Coherent Light Source" Clemens Schulze-Briese, SLS at PSI, Switzerland http://x06sa.web.psi.ch/, http://x10sa.web.psi.ch/, http://sls.web.psi.ch/view.php/beamlines/px3/index.html, "New developments for macromolecular crystallography at SLS" Cristian Riekel, ESRF, France www.esrf.eu/UsersAndScience/Experiments/SCMatter/ID13/, "ID13 Microfocus beamline at the ESRF" Ronald Ruth, Lyncean Technologies Inc. USA www.lynceantech.com/index.html "Compact Light Source" CLS, Canada www.lightsource.ca/ "The Canadian Light Source" 06.07 Superconducting Materials (Materials, Neutron) Session Organizer(s): John Mitchell, Argonne National Laboratory Session Focus: Superconductivity remains an extremely active research focus in condensed matter physics, materials design and discovery, and structure-property studies. The discovery of new superconductors such as the pnictides and pnictide oxides and layered cobalt oxides demonstrates that there remain many opportunities in this field, with chemical crystallography at the vanguard. Indeed, understanding the chemistry and structure of such new materials is often the first step toward a physical picture of their behaviors. This session will focus on exploring the crystallography and structural chemistry of superconducting materials both novel and wellknown. Contributions from all areas of materials discovery and structure-property studies of existing or novel superconducting materials are encouraged. Invited Speakers: Dirk Johrendt, Univ. of Munich, Germany, www.cup.uni-muenchen.de/ac/johrendt/index.html “Crystal chemistry and superconductivity of (Ba1-xKx)Fe2As2 and related 122-compounds: Taner Yildirim, NIST, USA, www.ncnr.nist.gov/staff/taner/ “Competing Magnetic Interactions, Structural Phase Transition, and the Key Role of Fe-spin State in Iron-Pnictide Superconductors” Eiji Takayama-Muromachi, National Institute for Materials Science, Japan, www.nims.go.jp/mana/members/principal_investigator/e_muromachi/index.html “Synthesis, crystal structure and physical properties of cobalt oxyhydrate superconductors” 06.08 Problem Structures: Solution and Refinement of Particularly Difficult Small Molecule Structures (Service, Small Mol) Session Organizer(s): Richard Staples (staples@chemistry.msu.edu) Session Focus: How to go about getting a solution or the refinement of a problem or difficult structure. Invited Speakers: Chuck Campana, Bruker-AXS, USA www.bruker-axs.de Victor Young, Univ. of Minnesota, USA www.chem.umn.edu/services/xraylab/ Vaclav Petricek, Institute of Physics of the AS CR, v. v. i., Czech Republic wwwxray.fzu.cz/xraygroup/www/xraygroup.html 06.09 Refinement, Refinement Software and Difficult Refinements (BioMac, YSSIG) Session Organizer(s): Edward Collins (edward_collins@med.unc.edu), Peter Horanyi (magyar@virginia.edu) Session Focus: Refinement software and difficult refinements session. The best practices of macromolecular structure refinement will be highlighted in the session. We will address current issues of X-ray crystallographic refinement like using low resolution data. The focus will be on modern techniques used to overcome the difficulties encountered during refinement and not the best software to use. Invited Speakers: Axel Brunger, Stanford Univ. School of Medicine, USA http://cns-online.org/v1.21/ Garib Murshudov, CCP4, UK www.ysbl.york.ac.uk/~garib/refmac/latest_refmac.html Paul Adams, Lawrence Berkeley Lab, USA http://pbd.lbl.gov/about/people/adams.htm Gerard Bricogne, Global Phasing Ltd., UK http://www.globalphasing.com/ 06.10 Would You Publish This? (Small Molecule, Service, General) Session Organizer(s): Carla Slebodnick (slebod@vt.edu) Session Focus: Small molecule and service crystallographers are often faced with crystal structures of moderate or poor quality and limited scientific interest. This session aims to stimulate friendly discussion addressing the following questions: (1) When is a structure too poor to publish? (2) How much does (should) scientific impact affect this decision? (3) What are some recommended procedures for publishing poor quality structures? (4) How do members of the service community reach compromises (or not) with clients regarding publication of such structures? Five-ten minutes will be allotted for oral presentations. Oral presentations will not count toward your one allowed conference paper. Presentation content should be limited to the scientific importance of the structure, the structure flaws, and structure fate (tentative or final). Ample discussion time will be available for audience feedback. Submissions are encouraged from both 'junior' crystallographers who are looking for feedback on specific structures and 'senior' crystallographers who can provide useful insight. 06.11 Cooperative Phenomena in Magnetic Materials (Small Molecule, Service, General) Session Organizer(s): Ovidiu Garlea, Neutron Scattering Science Division, Oak Ridge National Laboratory (garlea@ornl.gov) Session Focus: Magnetic structural studies and the interplay among spin, orbital and lattice degrees of freedom. Phase transitions and cooperative phenomena in magnetic systems are governed by the interplay between the spin, lattice, charge and orbital degrees of freedom. Geometric frustration and randomness can bring richness to cooperative behavior and give rise to a variety of exotic phases. Probing the underlying physics of such systems presents a substantial challenge both experimentally and theoretically. This session will feature presentations on recent research where neutron and X-ray scattering techniques were used to probe the structure and magnetic phase diagrams of several specific correlated-electron systems. Invited Speakers: Pierre Bordet, Néel Institute, CNRS/UJF, Grenoble, France, http://neel.cnrs.fr/spip.php?rubrique63&lang=en “Chiral magnetic order in Fe based langasites” Bruce D. Gaulin, Dept. of Physics and Astronomy McMaster Univ., Canada, www.physics.mcmaster.ca/people/faculty/Gaulin_BD_h.html “Neutron Scattering From Geometrically Frustrated Pyrochlore Magnets” Despina Louca, Univ. of Virginia, USA, www.phys.virginia.edu/People/personal.asp?uID=dl4f “Magnetic Phase Separation in Cobaltites” Andrei Savici, Johns Hopkins Univ. & Oak Ridge National Laboratory, USA, “Searching for stripes in short range charge and spin superstructures” 06.15 Energy Related Materials (Materials, Powder) Session Organizer(s): Ashfia Huq (ahug@ornl.gov) Session Focus: As the world's need for energy grows, the establishment of clean fuel initiatives and reducing the dependence on fossil fuels has become one of the largest challenges facing humanity. The need for research on energy related materials has never been greater. The energy related materials session will cover studies of wide ranges of materials including battery materials, hydrogen storage materials, thermoelectric materials and materials for fuel cell. Presentations for oral and poster sessions are solicited. Invited Speakers: Gerbrand Ceder, Materials Science and Engineering, Massachusetts Institute of Technology, USA, http://burgaz.mit.edu/ “Battery materials” Steven McIntosh, Chemical Engineering, Univ. of Virginia, USA, http://faculty.virginia.edu/mcintosh/ “Fuel cells” George S. Nolas, Dept. of Physics, Univ. of South Florida, USA, http://shell.cas.usf.edu/~gnolas/ “Thermoelectric materials” Craig Jensen, Univ. of Hawaii, www.chem.hawaii.edu/UH_Chem/faculty/Jensen2006/Research_Projects.htm “Hydrogen Storage materials” 06.16 Tips & Tricks of the (Computing) Trade (Service, General Interest, Smol Mol) Session Organizer(s): Xiaoping Wang, Oak Ridge National Laboratory, (wangx@ornl.gov) Session Focus: Individual solutions to individual problems at any stage of crystal structure determination, with emphasis on computing, i.e. large and small programs written to solve a problem. Invited Speakers: George M. Sheldrick, FRS, Dept. of Structural Chemistry, Univ. of Goettingen, Germany, http://shelx.uniac.gwdg.de/ “Determination of Problem Structures Using SHELX” Joseph Reibenspies, Dept. of Chemistry, Texas A & M Univ., USA www.chem.tamu.edu/xray “Quick & Dirty Crystallographic Programs “Past, Present & Future?” Brian H. Toby, Advanced Photon Source, Argonne National Laboratory, USA, http://www.aps.anl.gov/Xray_Science_Division/Powder_Diffraction_Crystallography 06.17 Accuracy and Standards in Powder Diffraction (Industrial, Powder) Session Organizer(s): Pamela Whitfield, NRC of Canada, Ottawa Canada (Pamela.Whitfield@nrc.gc.ca) Session Focus: The session has been conceived to encourage best practice in the collection of powder diffraction data, and to highlight some of the inherent and introduced sources of error. Invited presentations will highlight the appropriate use of standards, instrumental sources of error and issues relating to quantitative phase analysis. Invited Speakers: Jim Cline, NIST, USA www.nist.gov Arnt Kern, Bruker-AXS, Germany, www.bruker-axs.de “Instrumentation and Data Quality” Ian Madsen, CSIRO, Australia, www.csiro.au “Comparison and Assessment of Diffraction Methods for the Determination of Amorphous Content” 06.18 Ferroic & Multiferroic Materials (Materials, Neutron) Session Organizer(s): Peter M. Gehring, NIST, (peter.gehring@nist.gov) Session Focus: Structural studies of ferroic/multiferroic and relaxor materials, lattice dynamics, coupling between ferroic properties and structures, and new materials. Invited Speakers: Chris K. D. Stock, ISIS, Rutherford Appleton Laboratory, UK Valery Kiryukhin, Rutgers Univ.,USA www.physics.rutgers.edu/~vkir/ “Electric field control of magnetism and ferroelectricity in single crystals of multiferroic BiFeO3.” SP.05 Buerger Award Symposium 08:15-09:00 Michael James, Univ. of Alberta, Canada http://xray.biochem.ualberta.ca/ “From Bacterial Serine Peptidases to the Mycobacterium tuberculosis Genome: A Forty Year Trek in Protein Crystallography” 06.20 Structural Enzymology (BioMac, Synchrotron) Session Organizer(s): Emil F. Pai, Univ. of Toronto, Canada (pai@hera.med.utoronto.ca), Felix Vajdos Session Focus: Structures that give insight into enzyme mechanisms. Invited Speakers: Andrew Karplus, Oregon State Univ., http://biochem.science.oregonstate.edu/people/p-andrew-karplus “Glutathione reductase: probing catalysis at atomic resolution” Shenping Liu, Pfizer Inc., “Structural basis for the catalytic mechanism of human phosphodiesterase 9” Sine Larsen, ESRF, http://www-ccs.ki.ku.dk/staff/sine.html “Substrate recognition and catalysis of carbohydrate lyases” 06.21 Educational Outreach in Crystallography Session Organizer(s): Cora Lind, Univ. of Toledo, Ohio (cora.lind@utoledo.edu), Joseph Ng Session Focus: Crystallography is becoming a more widely available and used tool in many research fields, however, the formal teaching of crystallography has not kept up with these rapid developments. Over the past few years, significant efforts have been made to develop crystallographic teaching methods that are appropriate for introducing material at the K-12 and undergraduate level. This session will share such teaching approaches, and demonstrate their feasibility through contributions by high school students and teachers who have been exposed to such teaching. Invited Speakers: Bernhard Rupp, Q.E.D. Life Sciences Discoveries, Inc. www.ruppweb.org “Five years, 500 figures, and 1200 pages later: Tales from the crypt.” TR01 Phase Transitions (ACA Transactions Symposium) Session Organizer(s): Ross J Angel,Virginia Tech.( rangel@vt.edu) Session Focus: Phase transitions, in which a structure changes from one atomic arrangement to another without a change in composition, provide the most rigorous arena for testing ideas about the forces and balances of forces that stabilize particular atomic configurations in crystal structures. Thus the study of phase transitions has direct applications in pharmacology and drug design where the issue of stable polymorphs is critical. Most modern materials used in devices (gmr materials, piezo- and ferro-electrics) derive their technological properties as a result of structural phase transitions. While the study of phase transitions has previously been a major focus of solid state physics and mineralogy, the advent of fast and accurate area detector technologies together with reliable and automated temperature control systems, means that the study of phase transitions in molecular systems can become routine, provided the methods of analysis are known. In this Transactions Symposium a broad selection of the concepts and characterization techniques for studying phase transitions that have been developed in many sub-disciplines of crystallography will be presented. Contributions that describe novel technologies, instruments or experimental techniques, and examples of the analysis of phase transitions, are encouraged. Invited Speakers: Branton Campbell, Brigham Young Univ., Utah, USA www.physics.byu.edu/faculty/campbell/ “mechanisms and symmetry aspects” Simon Parsons, Univ. of Edinburgh, Scotland www.chem.ed.ac.uk/staff/academic/parsons.html “High-Pressure Phase Transitions in Molecular Crystals” Thomas Proffen, Los Alamos National Lab, USA www.lansce.lanl.gov/ “Local structure and crystallographic phase transitions” I. David Brown, McMaster Univ., Canada www.physics.mcmaster.ca/people/faculty/Brown_ID_h.html “Bond Valence and Phase Transitions” M. Dusek, Academy of Sciences, Prague, Czech Republic www-xray.fzu.cz/jana/jana.html “Incommensurate phase transitions” Diego Gatta, Univ. of Milan, Italy www.gp.terra.unimi.it/ “Phase transitions in microporous materials” Manuel Perez-Mato, Univ. of Bilbao, Basque Country, Spain, www.cryst.ehu.es/ “Symmetry aspects of structural phase transitions: ferroics and multiferroics”