1. Department of Biochemistry and Molecular PharmacologyUniversity of Massachusetts Medical School Worcester MA 01605 USA
2. State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua University Shanghai 201620 China
3. Texas A&M Institute of Biosciences & Technology 2121 W Holcombe Blvd. Houston TX 77030 USA
4. School of Life ScienceUniversity of Science & Technology of China 443 Huangshan Street Hefei City Anhui 230027 China