Fig. 5: Biomarkers identified for HPII.
From: Identification of Δ-1-pyrroline-5-carboxylate derived biomarkers for hyperprolinemia type II

a Proposed molecular structure of the original detected reaction product of P5C with acetoacetic acid6. b Previously characterized adduct of P5C with PLP. c Biomarkers identified in this work. d Pathway of formation of the detected biomarkers.