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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Toxicol Appl Pharmacol. 2009 Aug 19;241(2):135–142. doi: 10.1016/j.taap.2009.08.014

Table 1.

Kinetic Parametersa Descriptive of Butyrylthiocholine Hydrolysis by Human Butyrylcholinesterase

Fitted Equation Km (mM) Vmax (nmol/s) Kss (mM) Km2 (mM) b
Michaelis-Menten 0.10 9.71e−3 - - -
    (equation 1)
Haldane 0.10 9.51e−3 58,718 - -
    (equation 2)
Webb 0.07b 8.45e−3 - 26.09 1.06
    (equation 3)
a

Kinetic parameters are defined in the text.

a

Represents Km1 in equation 3.