4UHLENBECK O C. A small catalytic oligoribonucleotide [J]. Nature, 1987,328(6 130) :596 - 600.
5PONTIUS B W, LOTT B W, VON HIPPEL P H. Observations on catalysis by hammerhead ribozymes are consistent with a two divalent-metal-ion mechanism[J] .Proc Nail Acad Sci USA,1997,94(12) :2 290- 2 294.
6DAHM S C, DERRICK W B, UHLENBECK O C. Evidence for the role of solvated metal hydroxide in the hammerhead ckeavage echanism [ J ].Biochemistry, 1993,32(48) : 13 040 - 13 045.
7WALTER N G, BURKE J M.The hairpin ribozyme: structure, assembly and catalysis[J]. Curt Opin Chem Biol, 1998,2:24- 30.
8BURKE J M. Hairpin ribozyme: current status and future prospects[J].Biochem Soc Trans, 1996,24:608 - 615.
9MOOSBAUER J, TABLER M. A helix 1-extended hairpin ribozyme exhibits altered cleavage behavior in vitro[J].Antisense Nucleic Acid Drug Dev,1997,7:79- 87.
10SARGUEIL B,PECCHIA D B,BURKE J M.An improved version of the hairpin ribozyme functions as a ribonucleoprotein complex[ J]. Biochemistry, 1995,34:7739-7748.