Table 2. Protein Expression of CES1 and CES2 in Human Liver and Intestine by Proteomic Approaches [20, 39, 40].

Tissue Preparations	CES1 (pmol/mg protein)	CES2 (pmol/mg protein)
HLM	402 [20], 1664 [40], 176 [39]	29.8 [20], 174 [40]
HLC	54.5 [20], 557 [40]	2.76 [20], ND [40]
HIM	ND [20]	~ 30 [20]

ND = not detected.