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. Author manuscript; available in PMC: 2018 Apr 22.
Published in final edited form as: Crit Rev Biochem Mol Biol. 2017 Sep 13;52(6):674–695. doi: 10.1080/10409238.2017.1373741

Figure 1. Classification of characterized GREs.

Figure 1

Five classes of GREs include: GRE formate-lyases (pyruvate formate-lyases, PFL, and ketobutyrate formate-lyases, TdcE); GRE 1,2-eliminases (choline trimethylamine-lyase, CutC, glycerol dehydratase, GDH, and propane-1,2-diol dehydratase, PDH); GRE ribonucleotide reductases (class III RNRs); and GRE decarboxylases (4-hydroxyphenylacetate decarboxylase, HPAD); and X-succinate synthases (XSSs where X= toluene in the case of benzylsuccinate synthase, BSS).