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Fig. 7 | Biotechnology for Biofuels

Fig. 7

From: Transcriptomic and proteomic responses to very low CO2 suggest multiple carbon concentrating mechanisms in Nannochloropsis oceanica

Fig. 7

Basal CCM associated with the photorespiratory pathway, the one-carbon metabolism and the ornithine urea cycle in N. oceanica under VLC/HC. a Proposed “basal” CCM that is linked to the photorespiration pathway, one-carbon metabolism and the ornithine urea cycle. 3-PGA, 3-phosphoglyceric acid; CarbP, carbamoyl phosphate; CK, creatine kinase; CI, NADH–ubiquinone oxidoreductase complex I; γ-CA, γ-carbonic anhydrase; CPS, carbamoyl phosphate synthase; TDC, tetrahydrofolate dehydrogenase/cyclohydrolase; FTL, formyltetrahydrofolate ligase; GDC, glycine decarboxylase; GYD, glycolate dehydrogenase; OTC, ornithine transcarbamoylase; THF, tetrahydrofolate; OAA, oxaloacetate; TCA, tricarboxylic acid cycle; PGLP, phosphoglycolate phosphatase: GK, glycerate kinase; GOX, glycolate oxidase; GGAT, glutamate:glyoxylate aminotransferase; GDC-T, glycine decarboxylase complex T-protein; CAT, catalase; AT, alanine aminotransferase; SHMT, serine hydroxymethyltransferase. b Dynamics of the relative abundance of amino acids involved in photorespiration (glycine and serine) and the ornithine urea cycle (ornithine and citrulline)

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