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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Mol Genet Metab. 2016 Dec 8;120(3):198–206. doi: 10.1016/j.ymgme.2016.12.002

Table 1.

Biochemical properties of mouse CPS1 in response to NCG and NAG.

Substrate or activator Km or Ka (mM)
Vmax (μmol/min/mg)
NCG NAG NCG NAG
ATP 6.3 ± 1.2 2.7 ± 0.6 1.4 ± 0.1 2.1 ± 0.2
Bicarbonate 5.2 ± 0.8 7.8 ± 0.6 0.56 ± 0.01 1.4 ± 0.1
Ammonium 0.88 ± 0.12 0.27 ± 0.35 0.64 ± 0.01 1.5 ± 0.1
NCG or NAG 2.23 ± 0.06 0.13 ± 0.05 0.92 ± 0.02 1.51 ± 0.05