No significant differences of ECG parameters between Xb130 KO and WT mice.

Rate (bpm): The reciprocal of the average RR interval between valid beats; PR (ms) : Time interval between the first P wave marker and the first QRS marker (P1 to Q1); QRS (ms): Time interval between the QRS wave markers (Q1 to Q2); QT (ms): Interval between the first QRS marker and the second “T” wave marker (Q1 to T2); QTmax (ms): Time interval between the first QRS marker and the time of the maximal amplitude (positive or negative) of the “T” wave (Q1 to Tmax); QTc (ms): The QT interval ‘corrected’ for heart rate according to the formula QTc = QT/(RR/100)0.5; QRSH(mV): The maximum value occurring between the QRS markers, minus the minimum value; PH (mV): The maximum value occurring between the P wave markers, minus the minimum value; Cycles: The number of cardiac cycles included in the averaged ECG waveform.No significant differences of ECG parameters between Xb130 KO and WT mice.