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. 2016 Mar 8;16:62. doi: 10.1186/s12870-016-0750-3

Fig. 5.

Fig. 5

HPLC chromatography of SjGMD enzyme assays. a the separation of substrate GDP-Mannose; b ~ d, the separation of enzyme assay after 0, 5 and 30 min, respectively. ①, NAD+; ② and ④, unknown impurities from NAD+; ③, NADH; ⑤, GDP-Mannose; ⑥, GDP-Mannuronic acid