Before revision: The slippery sequence fits a X_XXY_Y YV motif, where XXX is any three identical nucleotides (though some exceptions occur), YYY typically represents UUU or AAA, and V is A, C or U.
After revision: The slippery sequence fits a X_XXY_Y YH motif, where XXX is any three identical nucleotides (though some exceptions occur), YYY typically represents UUU or AAA, and H is A, C or U.