Tags: Chemical Compound, Chemical Substance.
This file may be error. The precursor to ornithine and proline is thought to be glutamate-5-semialdehyde. See for instance Thomas M. Devlin Textbook of Biochemistry with Clinical Correlations Sixth Edition p. 755 (Figure 19.28) and p. 756 (Figure 19.29).Glutamate-1-semialdehyde is a molecule formed from glutamate and is a precursor to ornithine and proline.It is an intermediate in the metabolism of histidine with the immediate precursor being formiminoglutamic acid.