Figure 8: Ni-NTA purification of 6xHisFIP-Lrh protein.

A total of 24 μL sample were loaded into each well, as follows: 1: cell lysate containing the soluble 6xHisFIP-Lrh protein; 2: contained the flow through collected after the Ni-NTA resin binding; W1–2, W3–4, W5–6, W7–8: contained flow through of washes in wash buffer with 20 mM, 30 mM, 40 mM and 50 mM Imidazole (pH8.0) respectively; the E2–8: eluents containing the 14.9 kDa recombinant 6xHisFIP-Lrh (arrow) eluted at 250 mM Imidazole. (P) the purified 6xHisFIP-Lrh (arrow). M: Broad range protein marker (p7710s, NEB, UK).