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. 2021 May 27;14:122. doi: 10.1186/s13068-021-01971-5

Table 1.

Overview on the protein concentration (mg/ml) and total amount of protein (mg) of each step along the purification process of LsAA9A and NcAA9C expressed with either the pBSY3Z or the pBSYPGCW14Z expression plasmid and the native LPMO SP, from the crude supernatant to the pure protein

Enzyme Plasmid + SP Supernatant Fivefold concentrated Purified (obtained from 50 ml cultivation supernatant) Recovered protein
mg mg/ml mg mg/ml mg mg/ml %
LsAA9A pBSY3Z + native 21 ± 5 0.042 ± 0.010 22.5 ± 0.4 0.225 ± 0.004 0.61 ± 0.01 1.2 ± 0.02 27
pBSYPGCW14Z + native 28 ± 2 0.056 ± 0.004 24.7 ± 1.7 0.247 ± 0.017 0.6 ± 0.03 1.4 ± 0.05 24
NcAA9C pBSY3Z + native 22.5 ± 1.5 0.045 ± 0.003 20.7 ± 2.3 0.207 ± 0.023 0.39 ± 0.02 0.8 ± 0.05 18
pBSYPGCW14Z + native 76 ± 7 0.153 ± 0.014 70.5 ± 0.5 0.705 ± 0.005 2.08 ± 0.06 2.9 ± 0.03 29

For precise measurements, the volume of the supernatant and the fivefold concentrate was adjusted to 500 ml and 100 ml, respectively. Please note that the values reported in the column labeled with “purified” were obtained from 50 ml cultivation supernatant