PC R 设计引物时酶切位点旳保护酶寡核苷酸序列切割率%2 hr20 h rAc c IGG TC G AC C ﻫC G GT C GACC G ﻫCCGGTC G A C CGG 0 ﻫ0 00 0 ﻫ0Afl IIICACA T GTG ﻫC CACA T G T GG ﻫCCCACATGTGG G0 ﻫ>90 >900 ﻫ>90 ﻫ>90Asc IG G CGCGCC AGGC G C G CCT ﻫTTGGCG C GCCAA>90 >90 >90>90 ﻫ>90 ﻫ>90A v a ICCCCG G GG ﻫCCCC CGGGGG ﻫTC CC CC G GGGGA50 >9 0 ﻫ>90>90 >90 >90BamH ICG GAT C C G C GGGATC CC G C G C G GATCCG C G1 0 >90 >9 02 5 ﻫ>90 ﻫ>90Bg l IICAGATCTG ﻫG AAGATC T TC ﻫGGAAGATCT TC C0 ﻫ57 250 ﻫ>90 ﻫ>90Bss H IIG G C G CG C C ﻫAGG CGCGC CT TTG G CGCGCC AA0 ﻫ0 ﻫ500 ﻫ0 >90B st E IIG G G T(A/T)AC C C010BstX IAA C TGCAGA A C C AA T GC A TTGG AAAAC T GCAGC CA ATGCATT G G A A CTGCAGAACCAA T GC A TTGG A T G CAT0 ﻫ25 250 50 >90Cla IC A T CGATG ﻫG ATCGATC C C ATCGATGG C CCATCGA T G GG0 ﻫ0 ﻫ>90 500 ﻫ0 >90 50EcoR IG GA A TT CC ﻫCG G AA TTCC G ﻫCCGGAA T