We are currently pursuing the following long-term collaborations:

• Analytical Ultracentrifugation and Data Analysis with the Keck Biophysical Facility at Northwestern University in Evanston, Illinois.

• Development of Grid- and Metacomputing solutions for linking multiple Beowulf computers together into a single logical supercluster unit with University of Texas at San Antonio (Raj Boppana), University of Montana (Don Morton). and Southwest Research Institute in San Antonio (Richard Murphy).

We have collaborated with the following individuals and laboratories:

• 2005:Milton Werner, Rockefeller University, Andrew Hinck, John Hart, Stephen Hardies, Eileen Lafer, Lee McAlister-Henn, Pavel Martasek, Bettie-Sue Masters, Chongwoo Kim, University of Texas, Health Science Center, James Nowick, University of California, Irvine, Xiaomin Chen, MD Anderson Cancer Center, Pete Lollar, Emory University, Walter Stafford, Boston Biomedical Research Institute, Thomas Laue, University of New Hampshire, Jay Boisseau, Texas Advanced Computing Center, University of Austin, Jaime Pascual, Burnham Institute, Ishwar Radhakrishnan, Northwestern University, Grigory Belogrudov, University of California, Los Angeles, P. Shing Ho, Oregon State University, Vince Pecoraro, University of Michigan, Yigong Shi, Princeton University, Hong Li, Florida State University, Karim Lounes, Duke University, Weiming Cao, University of Texas at San Antonio, Mike Ogawa, Bowling Green State University..

• 2004: Kensal van Holde, Oregon State University, Greg Gilles, Clemson University, Milton Werner, Rockefeller University, Andrew Hinck, John Hart, Stephen Hardies, Eileen Lafer, University of Texas, Health Science Center, James Nowick, University of California, Irvine, Lise Heginbotham, Yale, Xiaomin Chen, MD Anderson Cancer Center, Thomas McGarry, Northwestern University, Arnon Lavie, University of Illinois, Chicago.

• 2003: Amy Rosenzweig, Northwestern University, Weiming Cao, Raj Boppana, University of Texas San Antonio, Andrew Mehl, Knox College, Richard Nowak, Harvard, Thomas Russell, Shiao-Chun Tu, University of Houston, Hong Li, Florida State University.

• 2002: Amy Rosenzweig, Tom O'Halloran, Northwestern University, Andrew Mehl, Knox College, Hashim Saber, University of Montana

• 2001: Milton H. Werner, Rockefeller University, Richard Morimoto, Li-Jung Tai, Northwestern University, Donald Morton, University of Montana, Christopher Francklyn, Michael Bovee, University of Vermont

• 2000: Saul Roseman, Nehmat Keyhani, Johns Hopkins University, Jeffrey Hansen, John Hart, Pavel Martasek, University of Texas Health Science Center at San Antonio,

• 1999: Joachim Behlke, Otto Ristau, Max Delbrück Zentrum, Berlin, Germany, Peter Schuck, NIH, Bethesda, MD, James Bullard, Replidyne, Boulder, Colorado, Linda Spremulli, University of North Carolina, Andrej Musatov, Neal Robinson, University of Texas Health Science Center in San Antonio, Qinwei Zhou, ImClone Systems, New York City, NY