Research Article

High Expression and Purification of Amino-Terminal Fragment of Human Amyloid Precursor Protein in Pichia pastoris and Partial Analysis of Its Properties

Figure 3

Purified recombinant N-APP by Q Sepharose fast flow chromatography. M: protein marker; lane 1: culture supernatant; lanes 2–5: purified N-APP from different tubes after ion exchangers.
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