2009 ACA Meeting, July 25 - 30, 2009, Sheraton City Centre Hotel, Toronto, Ontario, Canada : http://www.cins.ca/aca2009/
As of July 8th 2009: ACA 2009 Toronto Final Program Schedule (pdf)
As of July 8th 2009: ACA 2009 Toronto Program At A Glance (pdf)
Workshop Registration Costs
Workshops after May 31 WK.01 JANA (Friday 24th July & Saturday 25th July) US$200 US$250 WK.02 Twinning (Saturday 25th July) US$110 US$130
MX Frontiers at the One Micron Scale, Brookhaven National Laboratory, July 23-24 2009http://www.nsls.bnl.gov/newsroom/events/workshops/2009/mx/
We invite you to learn from the foremost structural biologists using micro-focused x-ray beams and from the most experienced designers of their beamlines about the unique scientific and experimental capabilities at the one-micron scale. We invite you to take part in discussions of these recent developments. We invite you to weigh in on how they may be translated to the design new crystallographic beamlines at NSLS-II in ways that will optimally serve your needs and fully exploit the uniquely small, stable, and brilliant beams
JANA - Incommensurate Crystal Structures - Friday July 24, 2009 to Saturday July 25, 2009WK 01 - Chairs: Jim Kaduk, Olivier Gourdon
Speakers: Michal Dusek, Václav Petrícek, Juan Manuel Perez-Mato and Olivier Gourdon
The purpose of this TWO DAY workshop is to present an overview of the methods of structure determination and structural analysis of imcommensurately modulated structures and composite crystals. Lectures will cover the basic principles of the superspace description of modulated structures as well as advanced topics, like the method of Charge Flipping and the Maximum Entropy method in superspace. In addition to the lectures, the participants will have the opportunity to practice structure refinements using the computer program JANA2006 (written by V. Petricek, M. Dusek, and L. Palatinus, Prague). A step-by-step tutorial with several examples will be provided, but data sets from the students will be welcome, too.
ScheduleFriday, July 24 8:30 am- Welcome
8:45 am- Introduction to Jana 2006 (Michal Dusek)
9:30 am- Upgrade and/or installation of Diamond and Jana 2006
9:45 am- Introduction to Example 3- PtCu -3d Structure with disorder
10:00 am- Coffee Break
10:15 am- Practical exercise on Example 3- PtCu -3d Structure with disorder and Review of Examples 1,2.
12:30 am- Lunch
1:45 pm- Introduction to Modulated Structure (Václav Petrícek)
2:30 pm- Introduction to Example 4- YPO -(3+1)d Simple Modulated Structure.
3:00 pm- Coffee Break
3:15 am- Practical exercise on Example 4- YPO -(3+1)d Simple Modulated Structure.
5:30 pm- End of the first day.
Saturday, July 25
Handling Twinning in Macromolecular Crystallography - Saturday July 25, 2009WK 02 - Chairs: George Sheldrick, Garib Murshudov, Peter Zwart
Twinning is a frequent problem in macromolecular crystallography that can easily be misunderstood and even lead to panic reactions. The aim of this workshop is to provide an understanding of twinning in a macromolecular context, and to show how one can often obtain entirely satisfactory and publishable structures despite twinning. Half the time will be spent in small tutorial groups getting to know the computer programs for diagnosing, processing and refining twinned structures. Participants are encouraged to bring laptops and problem datasets. It is particularly timely that the latest versions of REFMAC and PHENIX_REFINE now include facilities for refining twinned structures; SHELX solution and refinement of twins will also be demonstrated.
Acknowledgement is made to Bristol-Myers Squibb Pharmaceutical Research Institute for its donation of 30 laptops to the workshop and a donation from Dr Herbert E. Klei for financial support of the workshop.
ScheduleSaturday, July 25
8:30-9:05 Introduction to twinning. Regine Herbst-Irmer
9:05-9:40 Detection of twins. Todd Yeates
9:40-10:15 Twins and the phase problem. Zbigniew Dauter
10:15-10:45 Coffee Break
10:45-11:20 Processing non-merohedral twins and refinement withSHELX. George Sheldrick
11:20-11:55 Twin refinement with REFMAC. Garib Murshudov
11:55-12:30 Twin refinement with PHENIX_REFINE. Peter Zwart
12:30-14:00 Lunch and discussion
14:00-14:45 Computer demo I
The ACA2009 website is hosted by the Canadian Institute for Neutron Scattering.
Contact the ACA 2009 organisers
The American Crystallographic Association (ACA) is an affiliate member of the IUCr and adheres to the IUCr Scientific Freedom Policy and is a member of the American Institute of Physics