Page 403.

Table IV referred to previous data from Chen et al. (1996) concerning mutations in domain IV of the sodium channel. However, the numbering system for mutations in domain IV used by Chen et al. (1996) differed from that used in this paper. Therefore, two mutants were labeled incorrectly. Mutant 4R1Q should have been termed 4R0Q, and mutant 4R3Q should have been termed 4R2Q. The corrected table is reprinted below.