Correction

Page 302

Due to a typesetting error, the [ATP] column was deleted from Table. The corrected table appears below:

Page 304, right column, lines 1–6 of paragraph 2.

Due to an editorial error, parenthetical citation for Fig. 5 appears as A. The corrected sentence is given here:

The [Ca²⁺]_i dependence of the AdA-liganded channel P_o in the absence of ATP (Figs. 5 B and 6) was well fitted by the biphasic Hill equation (Eq. 2) with K_act, H_act, K_inh, and H_inh comparable with those for the channel activated by InsP₃, but with a P_max decreased to ∼0.4 (Table H).

Page 305, left column, lines 1–6 of paragraph 2.

Due to an editorial error, the row citation for Table was deleted. The corrected sentence is given here:

When the concentration of AdA was reduced from 100 to 20 nM in the absence of ATP, the channel became more sensitive to Ca²⁺ inhibition (Fig. 7), with only K_inh reduced while the other Hill equation parameters remained similar to those observed in 100 nM AdA (Table, row I).