Kinetic parameters for torpedo number 342,351

Substrates: 3,3-dimethylbutylthioacetate, Acetylthiocholine

Inhibitors: Edrophonium

Substrates

Substrate: 3,3-dimethylbutylthioacetate

Gene_Locus	Enzyme	Km	Kcat	Exp. conditions	Reference
human-ACHE	D349N/E358Q	200 & 30 uM	38000 & 6000/min	IS 5mM	Shafferman_1994_EMBO.J_13_3448
human-ACHE	WT	300 & 6 mM	55000 & 10000/min	50mM NaPhosphate pH8	Kronman_1994_J.Biol.Chem_269_27819
human-ACHE	WT	450 uM	52000 /min	IS 50mM phosphate pH8 T27C	Ordentlich_1993_J.Biol.Chem_268_17083
human-ACHE	WT	300 uM	55000/min	5 or 50mM Na Phosphate pH8 T27C	Ordentlich_1995_J.Biol.Chem_270_2082
human-ACHE	WT	260 & 30 uM	46000 & 7000/min	IS 5mM	Shafferman_1994_EMBO.J_13_3448

Substrate: Acetylthiocholine

Gene_Locus	Enzyme	Km	Kcat	Exp. conditions	Reference
human-ACHE	D349N/E358Q	80 & 10 uM	380000 & 60000/min	IS 5mM	Shafferman_1994_EMBO.J_13_3448
bunfa-ACHE	WT	78.8 & 6.3 uM	-	T25C IS 50 mM phosphate	Cousin_1996_J.Biol.Chem_271_15099
chick-ACHE	WT	-	175000/min	100mM NaP T28C pH7.0	Vigny_1978_Eur.J.Biochem_85_317
eleel-ACHE	WT	130 uM	900000 /min		Salih_1992_Biochem.J_285_451
eleel-ACHE	WT	-	733333/min	100mM NaP T28C pH7.0	Vigny_1978_Eur.J.Biochem_85_317
human-ACHE	WT	120 uM	420000/min	50mM Na phosphate pH8	Barak_1994_J.Biol.Chem_269_6296
human-ACHE	WT	140 uM	4.0 10+5 /min	IS 50mM phosphate pH8 T27C	Kaplan_2001_Biochemistry_40_7433
human-ACHE	WT	140 & 10 uM	400000 & 50000/min	50mM NaPhosphate pH8	Kronman_1994_J.Biol.Chem_269_27819
human-ACHE	WT	140 uM	370000/min	IS 50mM phosphate pH8 T27C	Ordentlich_1993_J.Biol.Chem_268_17083
human-ACHE	WT	140 uM	400000/min	5 or 50mM Na Phosphate pH8 T27C	Ordentlich_1995_J.Biol.Chem_270_2082
human-ACHE	WT	140 & 50 uM	370000 & 10000/min	pH8 T27C 50mM Na phosphate	Shafferman_1992_EMBO.J_11_3561
human-ACHE	WT	80 & 10 uM	400000 & 60000/min	IS 5mM	Shafferman_1994_EMBO.J_13_3448
human-ACHE	WT	117 uM	390000 /min	50mM Na phosphate pH8.0 T27C	Velan_1991_J.Biol.Chem_266_23977
human-BCHE	WT	40 uM	0.5 10+5 /min	IS 50mM phosphate pH8 T27C	Kaplan_2001_Biochemistry_40_7433
mouse-ACHE	WT	46 uM	140000 /min	100mM NaPhosphate Ph7.0 T22C	Hosea_1995_Biochemistry_34_11528
mouse-ACHE	WT	46 & 3 uM	140000 & 10000/min	100mM NaP pH7 T22C eq3 sch3	Radic_1993_Biochemistry_32_12074
mouse-BCHE	WT	23 uM	40000 /min	100mM NaPhosphate Ph7.0 T22C	Hosea_1995_Biochemistry_34_11528
mouse-BCHE	WT	35 & 2 uM	40000 & 7000/min	100mM NaP pH7 T22C eq3 sch3	Radic_1993_Biochemistry_32_12074
ratno-ACHE	WT	-	220000/min	100mM NaP T28C pH7.0	Vigny_1978_Eur.J.Biochem_85_317
torca-ACHE	WT	-	481666/min	T25C pH7.8	Taylor_1974_Mol.Pharmacol_10_78
torma-ACHE	WT	81.2 & 4.2 uM	-	T25C IS 50 mM phosphate	Cousin_1996_J.Biol.Chem_271_15099
torma-ACHE	WT	-	273333/min	100mM NaP T28C pH7.0	Vigny_1978_Eur.J.Biochem_85_317
human-ACHE	WT	0.30 mM	-	IS 50mM phosphate pH8 T27C	Kaplan_2001_Biochemistry_40_7433
human-ACHE	WT	2.5 mM	-	50mM NaPhosphate pH7.4	Loewenstein-Lichtenstein_1996_Mol.Pharmacol_50_1423

Inhibitors

Inhibitor: Edrophonium

Gene_Locus	Enzyme	Ki	Ksi	Ic50	Substrate	Exp. conditions	Reference
human-ACHE	D349N/E358Q	0.90 & 0.14 uM	-	-	Acetylthiocholine	IS 150 mM	Shafferman_1994_EMBO.J_13_3448
human-ACHE	WT	0.6 & 0.1 uM	-	-	3.3-dimethylbutylthioacetate	50mM NaPhosphate pH8	Kronman_1994_J.Biol.Chem_269_27819
bunfa-ACHE	WT	0.6 & 0.0 uM	9.9 & 4.2 uM	-	Acetylthiocholine	T25C IS 50 mM phosphate	Cousin_1996_J.Biol.Chem_271_15099
chick-ACHE	WT	0.23 uM	-	-	Acetylthiocholine	100mM NaCl 50mM Tris pH7.4	Eichler_1994_Mol.Pharmacol_45_335
human-ACHE	WT	0.75 uM	-	-	Acetylthiocholine	50mM Na phosphate pH8	Barak_1994_J.Biol.Chem_269_6296
human-ACHE	WT	50 uM	-	-	Acetylthiocholine	T25C IS 50 mM phosphate	Kaplan_2001_Biochemistry_40_7433
human-ACHE	WT	0.7 & 0.1 uM	-	-	Acetylthiocholine	50mM NaPhosphate pH8	Kronman_1994_J.Biol.Chem_269_27819
human-ACHE	WT	0.3 uM	-	-	Acetylthiocholine	IS 50mM phosphate pH8 T27C	Ordentlich_1993_J.Biol.Chem_268_17083
human-ACHE	WT	0.6 uM	4.8 uM	-	Acetylthiocholine	5 or 50mM Na Phosphate pH8 T27C	Ordentlich_1995_J.Biol.Chem_270_2082
human-ACHE	WT	-	-	1.5 uM	Acetylthiocholine	pH8 T27C 50mM Na phosphate	Shafferman_1992_EMBO.J_11_3561
human-ACHE	WT	0.32 & 0.05 uM	-	-	Acetylthiocholine	IS 5mM	Shafferman_1994_EMBO.J_13_3448
human-BCHE	WT	50 uM	-	-	Acetylthiocholine	T25C IS 50 mM phosphate	Kaplan_2001_Biochemistry_40_7433
mouse-ACHE	WT	0.30 & 0.1O uM	6.4 & 0.6 uM	-	Acetylthiocholine	100mM NaP pH7.0 T22C	Radic_1993_Biochemistry_32_12074
mouse-BCHE	WT	110 & 37 uM	1400 & 700 uM	-	Acetylthiocholine	100mM NaP pH7.0 T22C	Radic_1993_Biochemistry_32_12074
torma-ACHE	WT	0.3 & 0.0 uM	-	-	Acetylthiocholine	T25C IS 50 mM phosphate	Cousin_1996_J.Biol.Chem_271_15099
torma-ACHE	WT	0.15 uM	-	-	Acetylthiocholine	100mM NaCl 50mM Tris pH7.4	Eichler_1994_Mol.Pharmacol_45_335
human-ACHE	WT	0.4 uM	-	-	Paranitrophenylacetate	IS 50mM phosphate pH8 T27C	Ordentlich_1993_J.Biol.Chem_268_17083
human-ACHE	WT	0.24 uM	-	-	S-N-Propylthioacetate	IS 50mM phosphate pH8 T27C	Ordentlich_1993_J.Biol.Chem_268_17083

Send your questions or comments to :Mail to: Nicolas Lenfant, Thierry Hotelier, Yves Bourne, Pascale Marchot and Arnaud Chatonnet.Please cite: Lenfant 2013 Nucleic.Acids.Res. or Marchot Chatonnet 2012 Prot.Pept Lett.

For technical information about these pages see:
ESTHER Home Page and ACEDB Home Page
AcePerl Lincoln Stein Home Page

webmaster

Acknowledgements and disclaimer