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. 2019 Mar 7;17(3):e3000157. doi: 10.1371/journal.pbio.3000157

Table 1. AlloP and the photolabeling analogues modulate and activate α1β3-GABAA receptor currents in X. laevis oocytes, tested by two-electrode voltage clamp.

Neurosteroids Potentiation
1 μM NS
Potentiation
10 μM NS
Direct activation
10 μM NS
KK123 4.2 ± 3.3 (5) 8.2 ± 6.7 (7) 6.3 ± 3.8 (5)
KK200 1.6 ± 0.2 (5) 4.9 ± 2.7 (5) 0.14 ± 0.08 (5)
KK202 1.4 ± 0.2 (6) 3.9 ± 2.1 (9) 8.97 ± 8.9 (6)
Potentiation
0.1 μM AlloP
Potentiation
1 μM AlloP
Direct activation
10 μM AlloP
AlloP 4.9 ± 1.3 (7) 9.7 ± 4.7 (7) 3.4 ± 1.2 (5)

Potentiation is expressed as potentiation response ratio, calculated as the ratio of the peak response in the presence of GABA and neurosteroids to the peak response in the presence of GABA alone. Direct activation is expressed as percentage of the response to saturating GABA. Data are shown as mean ± SD (number of cells).

Abbreviation: AlloP, allopregnanolone; GABAA, gamma amino-butyric acid Type A; NS, neurosteroid.