AF479322 2871 16 34 T7 RNA polymerase promoter AF479322 2871 40 56 SP6 RNA polymerase promoter AF479322 2871 57 83 5' beta globin leader sequence AF479322 2871 84 130 multiple cloning region AF479322 2871 131 160 synthetic poly(A)30 region AF479322 2871 161 208 T7 transcription terminator sequence AF479322 2871 287 742 phage f1 region