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. 2005 Jul 1;89(3):1990–2003. doi: 10.1529/biophysj.104.055798

TABLE 1.

Kinetic parameters for eelAChE in the ethanol and ionic solutions

LiCl
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 745.4 ± 13.2 14.71 ± 0.09 5.07 ± 0.06
0.0254 876.6 ± 23.6 24.13 ± 0.61 3.63 ± 0.01
0.0394 678.7 ± 0.01 24.89 ± 0.40 2.73 ± 0.04
0.0794 830.6 ± 9.5 44.91 ± 0.75 1.85 ± 0.05
0.1594 869.4 ± 5.8 70.46 ± 2.90 1.23 ± 0.06
0.3114 711.1 ± 1.9 87.88 ± 3.06 0.81 ± 0.03

NaCl
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 743.1 ± 11.0 14.97 ± 0.13 4.96 ± 0.12
0.0254 880.6 ± 11.8 23.20 ± 0.09 3.80 ± 0.07
0.0394 888.1 ± 0.02 26.73 ± 0.04 3.32 ± 0.01
0.0794 880.0 ± 25.2 42.13 ± 1.67 1.96 ± 0.02
0.1594 993.1 ± 16.8 83.99 ± 3.96 1.17 ± 0.08
0.3114 968.6 ± 6.5 117.17 ± 7.15 0.83 ± 0.06

KCl
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 773.9 ± 20.4 18.12 ± 0.33 4.27 ± 0.05
0.0254 876.6 ± 7.5 23.07 ± 0.54 3.37 ± 0.17
0.0394 920.9 ± 8.9 41.41 ± 1.06 2.22 ± 0.11
0.0794 967.8 ± 9.9 63.61 ± 1.44 1.52 ± 0.07
0.1594 813.9 ± 2.7 84.78 ± 2.82 0.96 ± 0.05
0.3114 920.6 ± 12.7 131.64 ± 0.76 0.70 ± 0.02

RbCl
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 839.9 ± 0.1 18.26 ± 0.75 4.60 ± 0.19
0.0254 774.6 ± 5.9 24.88 ± 1.59 3.12 ± 0.22
0.0394 762.1 ± 12.1 28.51 ± 0.43 2.63 ± 0.07
0.0794 821.8 ± 2.4 70.23 ± 1.97 1.17 ± 0.04
0.1594 922.8 ± 5.0 101.83 ± 7.65 0.91 ± 0.07
0.3114 874.0 ± 1. 8 129.05 ± 2.29 0.68 ± 0.01

CsCl
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 786.6 ± 0.1 19.03 ± 1.03 4.13 ± 0.22
0.0254 874.3 ± 6.8 29.61 ± 1.30 2.95 ± 0.10
0.0394 686.2 ± 4.7 33.00 ± 0.39 2.08 ± 0.04
0.0794 879.2 ± 14.0 90.72 ± 1.43 0.97 ± 0.03
0.1594 941.6 ± 35.4 168.94 ± 5.98 0.56 ± 0.01
0.3114 730.5 ± 8.9 187.23 ± 4.83 0.39 ± 0.01

KBr
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 861.5 ± 25.8 19.46 ± 0.34 4.43 ± 0.08
0.0254 897.6 ± 8.1 21.74 ± 0.15 4.13 ± 0.06
0.0394 889.4 ± 3.9 42.83 ± 0.70 2.08 ± 0.04
0.0794 898.6 ± 0.9 59.20 ± 0.67 1.52 ± 0.02
0.1594 996.9 ± 4.1 113.20 ± 1.80 0.88 ± 0.02
0.3114 882.3 ± 14.4 129.73 ± 1.75 0.68 ± 0.02

KI
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 710.9 ± 24.0 15.86 ± 0.75 4.48 ± 0.06
0.0254 748.6 ± 10. 5 25.79 ± 0.22 2.90 ± 0.02
0.0394 750.3 ± 4.9 34.80 ± 0.26 2.16 ± 0.02
0.0794 804.4 ± 4.7 64.44 ± 1.12 1.25 ± 0.03
0.1594 756.7 ± 0.7 88.72 ± 1.90 0.85 ± 0.02
0.3114 612.0 ± 7.8 120.32 ± 1.51 0.51 ± 0.01

CsI
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.0154 587.3 ± 2.9 24.95 ± 0.51 2.35 ± 0.06
0.0254 639.9 ± 4.2 42.86 ± 1.23 1.49 ± 0.05
0.0394 651.4 ± 2.4 61.12 ± 1.92 1.07 ± 0.03
0.0794 630.4 ± 8.1 125.64 ± 0.48 0.50 ± 0.01
0.1594 446.9 ± 2.5 170.44 ± 9.67 0.26 ± 0.02
0.3114 274.4 ± 0.2 324.69 ± 2.41 0.08 ± 0.001

EtOH
Ic (M) kcat (s−1) Km (μM) kcat/Km(M−1 s−1 × 10−7)
0.1 915.6 ± 2.1 18.32 ± 0.28 5.00 ± 0.07
0.2 733.5 ± 7.5 20.41 ± 0.04 3.60 ± 0.04
0.3 799.8 ± 4.6 24.74 ± 0.08 3.23 ± 0.03
0.4 718.8 ± 6.2 27.25 ± 0.07 2.64 ± 0.03
0.5 786.7 ± 0.1 28.93 ± 0.51 2.72 ± 0.05
0.6 781.4 ± 3.1 28.97 ± 0.11 2.70 ± 0.02