Table 1:

Catalytic rate constants and efficiencies of the QStE and QSE substrates for the indicated depalmitoylating enzymes.

Enzyme	Substrate	km (μM)	kcat (s−1)	kcat/km (s−1M−1)
TgPPT1	QStE QSE	5.7±1.5 42.6±5.6	(1.7±0.1) × 10−2 (1.6±0.1) × 10−2	3,000 380
HsAPT1	QStE QSE	14.5±2.8 19.1 ±5.7	(4.6±0.4) × 10−2 (0.3±0.1) × 10−2	3,200 160
HsAPT2	QStE QSE	19.3±3.2 37.5±15.2	(4.4±0.3) × 10−2 (0.26±0.06) × 10−2	2,300 69