1. Department of Biological Chemistry, University of Michigan Medical School, 1150 West Medical Center Drive, 5301 MSRB III, Ann Arbor, Michigan 48109-5606, United States
2. Osaka Bioscience Institute, Department of Molecular Behavioral Biology, 6-2-4 Furuedai, Suita-shi, Osaka 565-0874, Japan
3. Karolinska University Hospital Solna, Rheumatology Unit, Building D2:01, SE-171 76, Stockholm, Sweden