Table 4

Enzyme	Identified Species	Km (mM)	kcat (S^–1)	Reference
Pepsin	Bolti fish	0.77	-	El–Beltagy et al.[2]
Pepsin	Polar cod	1.33	-	Arunchalam and Haard [76]
Pepsin I	Pectoral rattail	0.098	50	Klomklao et al. [45]
Pepsin II	Pectoral rattail	0.152	32	Klomklao et al. [45]
Pepsin I	European eel	0.088	23.7	Wu et al. [52]
Pepsin II	European eel	0.092	19.4	Wu et al. [52]
Pepsin III	European eel	0.07	34.4	Wu et al. [52]
Pepsin I	Sea bream	0.087	-	Zhou et al. [51]
Pepsin II	Sea bream	0.1	-	Zhou et al. [51]
Pepsin III	Sea bream	0.086	-	Zhou et al. [51]
Pepsin IV	Sea bream	0.073	-	Zhou et al. [51]
Pepsin I	Atlantic cod	0.156	18	Gildberg et al. [46]
Pepsin II	Atlantic cod	0.044	33	Gildberg et al.[46]
Pepsin I	Antarctic fish	0.074	3.32	De Luca et al. [38]
Pepsin II	Antarctic fish	0.025	0.54	De Luca et al.[38]

Table 4: K_m and k_catof pepsins from different fish species.