ICA-121431 interacts with human Nav1.3 and the amino acid residues that may define selectivity for this channel over other related Nav channels, including Nav1.7 and Nav 1.5. Data generated using conventional patch clamp electrophysiological recording using a pulse protocol whereby a 20-ms test pulse is preceded by an 8-s step to a voltage that inactivated half of the channels.
ICA-121431 is against Wild type hNav1.3 hNav1.5 hNav1.7 with IC50s of 0.013 μM, >30 μM, 12 μM, respectively.
ICA-121431 is against hNav channels with point mutations,shows hNav1.3 M1 (S1510Y), hNav1.3 M2 (R1511W), hNav1.3 M3 (E1559D), hNav1.3 M1,3 (S1510Y/E1559D), hNav1.3 M2, 3 (R1511W/E1559D), hNav1.3 M1, 2, 3 (S1510Y/R1511W/E1559D), and hNav1.7 M1, 2, 3 (Y1537S/W1538R/D1586E) with IC50 values of 0.1 μM, 0.37 μM, 1.1 μM, 1.3 μM, 1.9 μM, 11.6 μM, 0.032 μM, respectively.
ICA-121431 is against hNav channels with point mutations,shows
hNav1.3/hNav1.5 S1-S4, hNav1.3/hNav1.5 S3-S4, hNav1.3/hNav1.5 S5-S6, hNav1.3/hNav1.7 S1, hNav1.3/hNav1.7 S2, hNav1.3/hNav1.7 S3-S4, and hNav1.3/hNav1.7 S5-S6 with IC50 values of 0.083 μM, 1.2 μM, 11 μM, 2.0 μM, 0.045 μM, 0.030 μM, 0.30 μM, 1.0 μM, and 0.024 μM, respectively.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.