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. 2015 Feb 3;10(2):e0117099. doi: 10.1371/journal.pone.0117099

Fig 2. Expression of GST-SUMO tagged HNTX-IV in BL21(DE3).

Fig 2

A) Solubility analysis at 37°C and 16°C. M: protein molecular weight marker; S: soluble fraction. P: precipitates. The target protein is denoted by an arrow. B) The expression level under different IPTG conditions.