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. 2018 Sep 21;17:151. doi: 10.1186/s12934-018-0991-y

Fig. 1.

Fig. 1

SDS-PAGE analysis of S. avermitilis protein expression in a cell extracts and b culture supernatants: 2.0% 1. Glycerol, 2. d-glucose, 3. d-xylose, 4. d-galactose, 5. d-fructose, and 6. no sugar. M: molecular weight marker. Arrows indicate Xylose isomerase (XylA) protein