1. Laboratory of Biochemical Physiology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, U.S.A.
2. Department of Biochemistry, Chungnam National University, Daejeon 34134, Republic of Korea
3. School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea