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Fig. 4 | BMC Plant Biology

Fig. 4

From: Integrating molecular characterization and metabolites profile revealed CtCHI1’s significant role in Carthamus tinctorius L.

Fig. 4

a Putative binding mode of 2′,4′,4,6′-tetrahydroxychalcone against the modelled protein structure. The protein is shown in cartoon and the 2′,4′,4,6′-tetrahydroxychalcone is in cryan. Residues forming hydrogen bonds have been labled (Gln108 and Gly40). b CtCHI1 protein catalyzed reaction in vitro. Substrate (2′,4′,4,6′-tetrahydroxychalcone) and product (naringenin) compounds are drawn. c HPLC pattern displays reaction progress with enzyme and without enzyme. S: substrate compound, P: product compound. (1) substrate compound in reaction buffer (2) spontaneous catalytic reaction without enzyme (3) catalytic reaction with enzyme (4) product compound in reaction buffer

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