transient responses of arginine precursor pools to perturbations in the medium end product concentration allowed a quantitative description of the negative feedback associated with pathway control , indicated that the n ( alpha ) -acetyl-l-glutamate pool size was the controlled variable , and suggested that n ( alpha ) -acetyl-l-glutamate and l-ornithine were the products of a transacetylation reaction in which n ( alpha ) -acetyl-l-ornithine and glutamic acid were the reactants .
C0887117
l-ornithine
C0029277
ornithine