TABLE 2.

Relative activity of pure preparations of P(3HO) depolymerase of P. fluorescens GK13 with several chromogenic substrates assayed at a final concentration of 0.3 mM in all cases^a

Substrate	Relative activity (%)
PNP-acetate	38.9
PNP-butyrate	10.7
PNP-valerate	44.2
PNP-octanoate	82.7
PNP-decanoate	88.7
PNP-dodecanoate	95.2
PNP-tetradecanoate	100.0
PNP-hexadecanoate	51.6
PNP-octadecanoate	24.7

^aOne hundred percent activity corresponded to 11.3 U/mg protein.