. "At the beginning of this reaction, 1 molecule of 'SMAC', and 1 molecule of 'XIAP:Caspase-3' are present. At the end of this reaction, 1 molecule of 'SMAC:XIAP:Caspase-3' is present.

This reaction takes place in the 'cytosol'.
"^^ . . . . . . . . "SMAC binds XIAP:Caspase-3"^^ . . . .