The saccharopine pathway is the predominant lysine degradative pathway in extracerebral tissues, whereas the pipecolate pathway predominates in adult brain. (S)-1-piperideine-6-carboxylate (P6C), an intermediate of the pipecolate pathway, is in equilibrium with alpha-aminoadipate delta-semialdehyde (2AMAS), which connects the two degradative pathways. How peroxisomal P6C transports to mitochondrial 2AMAS is unknown (Hallen et al. 2013).
Cooper, AJ, Jamie, JF, Hallen, A
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