Table 1. Kinetics parameters of sPPases from photosynthetic eukaryotes.
Values | |||||||||
---|---|---|---|---|---|---|---|---|---|
Organism… | Ch. reinhardtii | O. danica | E. gracilis | Cy. paradoxa | Cn. caldarium | Sp. oleracea | S. cerevisiae* | ||
Kinetic parameter | sPPaseI | sPPaseII | |||||||
Km (μM) | 10.5 | 65.2 | 29.2 | 32.4 | 32.4 | 10.5 | 29.4 | 1.5 | |
kcat (s−1) | 314.6 | 334.6 | 204.5 | 280.0 | 208.5 | 184.5 | 102.5 | 197.0 | |
kcat/Km | 30.0 | 5.1 | 7.1 | 8.6 | 6.4 | 17.6 | 3.5 | 131.3 |