Figure 1. [Metabolic pathway. Propionyl-CoA carboxylase (PCC)...]. - GeneReviews® - NCBI Bookshelf

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Adam MP, Feldman J, Mirzaa GM, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2023.

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Figure 1. . Metabolic pathway.

Figure 1.

Metabolic pathway. Propionyl-CoA carboxylase (PCC) catalyzes the conversion of propionyl-CoA to methylmalonyl-CoA, which enters the Krebs cycle via succinyl-CoA. Sources of propionate include: valine, isoleucine, threonine, methionine, odd-chain fatty acids, and cholesterol. Deficiency of PCC results in propionic acidemia (PA) and accumulation of 3-OH propionate, methylcitrate, and glycine, among other metabolites. PCC, located inside the mitochondrion, is a heterododecamer (α6β6) comprising six α-subunits (orange) and six β-subunits (purple). Biotin (blue), bicarbonate, and ATP have binding sites in the α-subunit. The β-subunits form a central core.

From: Propionic Acidemia

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Shchelochkov OA, Carrillo N, Venditti C. Propionic Acidemia. 2012 May 17 [Updated 2016 Oct 6]. In: Adam MP, Feldman J, Mirzaa GM, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2023. Figure 1. [Metabolic pathway. Propionyl-CoA carboxylase (PCC)...].
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