This motif is recently used as the building block of linear cascades.
i1 : oneSiteModificationA() o1 = S_0+E-->X X-->S_0+E X-->E+S_1 S_1+F-->Y Y-->S_1+F Y-->S_0+F o1 : ReactionNetwork
To rename species, use substitute(ReactionNetwork,List).
The object oneSiteModificationA is a method function.