In the main text of this article in volume 14, issue 19 of Current Biology (pp. 17551760), theaccession number for the sequence of SPD-1 is incorrect; it should be AY714241. It is correctin the Supplemental Data. In addition, the mutation oj5
alters Arginine to Tryptophan atposition 83, not 63 as reported in the Supplementa Data (page S1, bottom of column 1). We apologize for the errors.