1. Midwest Center for Structural GenomicsArgonne National LaboratoryArgonneIllinoisUSA
2. Structural Biology Center, Biosciences DivisionArgonne National LaboratoryArgonneIllinoisUSA
3. Department of Physics and GeologyUniversity of Texas–Pan AmericanEdinburgTexasUSA
4. Department of Biochemistry and BiophysicsTexas A&M UniversityCollege StationTexasUSA