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. 2017 Sep 11;8:1698. doi: 10.3389/fmicb.2017.01698

Figure 4.

Figure 4

Scheme for construction and identification of the expression vectors with 1, 2, 4, or 8 copies of the appA gene. (A) Schematic map of the construction of expression vectors pMCO-AOXα-A1, pMCO-AOXα-A2, pMCO-AOXα-A4, and pMCO-AOXα-A8. (B) Gel electrophoresis analysis of recombinant vectors digested with Spe I and Xba I. Line M, DNA marker; Line 1, pMCO-AOXα-A1; Line 2, pMCO-AOXα-A2; Line 3, pMCO-AOXα-A4; Line 4, pMCO-AOXα-A8.