sentence: The single-channel experiments ( Fig. S3 and Table S1 ) show that all four VDACs form ion channels with virtually undistinguishable basic channel properties when reconstituted and recorded under similar conditions.Voltage gating ( the voltage-triggered switching between open and closed states ) is a characteristic property of VDACs ( Colombini , 1989 ; Rostovtseva et al ., 2006 ; Teijido et al ., 2012 ) .