“Saturation kinetics for NAD+ with cholic or chenodeoxycholic acid as substrates were hyperbolic, and Lineweaver-Burk plots yielded apparent Km values of 0.13 mM and 0.006 mM, respectively.”
“The specific activity increased 4- to 6-fold with either cholic or chenodeoxycholic acid as a substrate in the presence of NAD+.”