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. 2014 Dec 18;9(12):e115428. doi: 10.1371/journal.pone.0115428

Table 1. Affinities for inhibiting different targets and phospholipolytic activities of PLA2s.

PLA2 Inhibition (IC50, µM) of α-[125I]Bgt Binding to… Current Blocking and Phospholipolytic Activities
T. californica nAChR Human α7 nAChR L. stagnalis AChBP A. californica AChBP Inhibition (IC50, µM) of ACh (Cyt)-induced current in L. stagnalis neurons Phospholipolytic activity, mmol/min/µmol
CM-II 1.2±0.1 3.2±0.3 1.00±0.03 >100 0.37±0.07* 2.3 [5]
Vurtoxin 0.26±0.02 14±5 >30 >30 10.5±2.6* 0.7
Vur-PL2 >100 29±2 >30 nd** >30 25.1 [19]
Bitanarin 4.3±0.2 [7] 20±1.5 [7] 10.6±0.6 [7] >50 [7] 4.8±1.3 1.95 [7]

* The data obtained for antagonizing action on currents induced by ACh in nAChR-Ls-1 neurons and by Cyt were combined

** Not determined