Table 2.

IC50 values for gliclazide concentration-inhibition relationships of the indicated KATP channels

Channel Nucleotide No nucleotide +Nucleotide 
Kir6.2/SUR1 100 µM MgADP 77 ± 11 nM (n = 6) 245 ± 29 nMa (n = 6) 
Kir.2/SUR2A-YS 100 µM MgADP 1.2 ± 0.2 µM (n = 5) 2.3 ± 0.6 µM (n = 5) 
Kir6.2-G334D/SUR1 1 mM MgATP 72 ± 12 nM (n = 6) 240 ± 42 nMa (n = 6) 
Kir.2-G334D/SUR2A-YS 1 mM MgATP 1.6 ± 0.5 µM (n = 5) 2.9 ± 1.1 µM (n = 5) 
Channel Nucleotide No nucleotide +Nucleotide 
Kir6.2/SUR1 100 µM MgADP 77 ± 11 nM (n = 6) 245 ± 29 nMa (n = 6) 
Kir.2/SUR2A-YS 100 µM MgADP 1.2 ± 0.2 µM (n = 5) 2.3 ± 0.6 µM (n = 5) 
Kir6.2-G334D/SUR1 1 mM MgATP 72 ± 12 nM (n = 6) 240 ± 42 nMa (n = 6) 
Kir.2-G334D/SUR2A-YS 1 mM MgATP 1.6 ± 0.5 µM (n = 5) 2.9 ± 1.1 µM (n = 5) 

All values are the mean of the fits to the individual dose–response curves.

a

P < 0.01 against 0 mM nucleotide (by Student’s t test).

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