pQTEV EcoRI GAATTCATTAAAGAGGAGAAATTAACTATGAAACATCACCATCACCATCACCATAGCGATTACGACATCCCCACTACT 90 100 110 120 130 140 150 160 M K H H H H H H H S D Y D I P T T <--- (His)7 tag ----> BamHI SalI BglII KpnI NotI HindIII GAGAATCTTTATTTTCAGGGATCCGGGTCGACTGTTGATAGATCTCGGTACCGCGGCCGCTCGACCTGCAGCCAA 170 180 190 200 210 220 230 240 E N L Y F Q\/G S G S T V D R S R Y R G R S T C S Q <-- TEV site /\ ->