A crystal structure of a tetrameric restriction enzyme, NgoMIV, bound to two DNA duplexes has been determined. Two subunits contact each duplex in much the same manner as a dimeric restriction enzyme recognizing a single site, but the dimeric units are packed back-to-back, placing the duplexes on opposite sides of the tetramer. Interaction with two recognition sites, presumably via looping, enhances NgoMIV activity.
机构:
Univ Massachusetts, Sch Med, Dept Med, Worcester, MA 01605 USA
Nanjing Med Univ, Affiliated Hosp 1, China US Vaccine Res Ctr, Nanjing 210029, Peoples R ChinaUniv Massachusetts, Sch Med, Dept Med, Worcester, MA 01605 USA
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, 405 Hilgard Ave, Los Angeles, CA 90024 USAUniv Calif Los Angeles, Dept Chem & Biochem, 405 Hilgard Ave, Los Angeles, CA 90024 USA
Natinsky, Benjamin S.
Liu, Chong
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, 405 Hilgard Ave, Los Angeles, CA 90024 USAUniv Calif Los Angeles, Dept Chem & Biochem, 405 Hilgard Ave, Los Angeles, CA 90024 USA