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. Author manuscript; available in PMC: 2008 Oct 13.
Published in final edited form as: Biochemistry. 2006 May 9;45(18):5878–5884. doi: 10.1021/bi052608w

Table 1.

Kinetics of aspartoacylases expressed in E. coli and P. pastoris

substratea parameters E. coli-expressed murine aspartoacylase P. pastoris-expressed human aspartoacylase
X = –CH3 kcat (s−1) 0.083 ± 0.006 12. 7 ± 0.05
Km (mM) 0.36 ± 0.06 0.12 ± 0.03
X = –CF3 kcat (s−1) 1.2 ± 0.09 116 ± 13
Km (mM) 0.21 ± 0.04 0.15 ± 0.05
a

parent compound: a