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. 2019 Aug 26;116(37):18638–18646. doi: 10.1073/pnas.1904225116

Fig. 2.

Fig. 2.

Form III RubisCO-mediated transaldolase variant of the CBB cycle in T. acidiphilum. Black arrows indicate reversible reactions, and blue arrows show irreversible ones. Red arrows indicate the reversible transaldolase reaction, absent from the canonical CBB cycle. Dashed arrows show the missing steps of the canonical variant of the CBB cycle. 3PGA, 3-phosphoglycerate; BPG, 1,3-bisphosphoglycerate; DHAP, dihydroxyacetone phosphate; E4P, erythrose-4-phosphate; F6P, fructose-6-phosphate; FBP, fructose-1,6-bisphosphate; FBPA, fructose-1,6-bisphosphate aldolase; FBPase, fructose-1,6-bisphosphatase; GAP, glyceraldehyde-3-phosphate; GAPDH, glyceraldehyde-3-phosphate dehydrogenase; PGK, phosphoglycerate kinase; Pi, inorganic phosphate; PRK, phosphoribulokinase; R5P, ribose-5-phosphate; RPI, ribose-5-phosphate isomerase; Ru5P, ribulose-5-phosphate; RubisCO, ribulose-1,5-bisphosphate carboxylase (form III in T. acidiphilum); RuBP, ribulose-1,5-bisphosphate; RuPE, ribulose-5-phosphate 3-epimerase; S7P, sedoheptulose-7-phosphate; SBP, sedoheptulose-1,7-bisphosphate; SBPA, sedoheptulose-1,7-bisphosphate aldolase; SBPase, sedoheptulose-1,7-bisphosphatase; TAL, transaldolase; TK, transketolase; TPI, triose-phosphate isomerase; Xu5P, xylulose-5-phosphate.