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J Biol Rhythms 21(6):458469

Many factors are presumably involved (Boogard et al., 1989), including relative distribution of N -acetyltransferase and aminoacylases, cellular and mitochondrial uptake mechanisms, susceptibility to inactivation of cysteine S -conjugate -lyases and nearby enzymes/macromolecules, relative K m values, competition from natural amino acid substrates, absolute level of the enzyme, the presence of the enzyme in mitochondria, and the presence of -keto substrate to keep the enzyme enzymatically active (if the lyase in question is an aminotransferase)

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XS and SC wrote the original version of this manuscript

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doi: 10.1002/(SICI)1097-0029(19970215)36:4 3.0.CO;2-N