Table 1.

The open probability of single activations in response to a brief pulse of glutamate

	NR1/NR2A	NR1/NR2B
Probability of activation	0.802 ± 0.018	0.558 ± 0.061
Open probability within an activation	0.670 ± 0.044	0.330 ± 0.040
Peak open probability	0.496 ± 0.030	0.119 ± 0.012

Values are mean ± s.e.m. for six patches for each subunit combination. Probability of activation is the fraction of sweeps with at least one channel opening following agonist application. Open probability within an activation is the fraction of time open during the activation. The peak open probability is calculated for each patch by normalizing the peak of the mean current waveform to the unitary current.