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Liss, D. B.; Paden, M. S.; Schwarz, E. S.; Mullins, M. E. (11 October 2013). "What is the clinical significance of 5-oxoproline (pyroglutamic acid) in high anion gap metabolic acidosis following paracetamol (acetaminophen) exposure?". Clinical Toxicology. 51 (9): 817–827. doi:10.3109/15563650.2013.844822. PMID24111553. S2CID43541851.
Schilling, Stephan; Wasternack, Claus; Demuth, Hans-Ulrich (1 August 2008). "Glutaminyl cyclases from animals and plants: a case of functionally convergent protein evolution". Biological Chemistry. 389 (8): 983–91. doi:10.1515/BC.2008.111. PMID18979624. S2CID24074284.
Podell, David N.; Abraham, George N. (March 1978). "A technique for the removal of pyroglutamic acid from the amino terminus of proteins using calf liver pyroglutamate amino peptidase". Biochemical and Biophysical Research Communications. 81 (1): 176–185. doi:10.1016/0006-291X(78)91646-7. PMID26343.
Pepeu, Giancarlo; Spignoli, Giacomo (January 1989). "Nootropic drugs and brain cholinergic mechanisms". Progress in Neuro-Psychopharmacology and Biological Psychiatry. 13: S77 –S88. doi:10.1016/0278-5846(89)90112-7. PMID2694231. S2CID11309268.
Liss, D. B.; Paden, M. S.; Schwarz, E. S.; Mullins, M. E. (11 October 2013). "What is the clinical significance of 5-oxoproline (pyroglutamic acid) in high anion gap metabolic acidosis following paracetamol (acetaminophen) exposure?". Clinical Toxicology. 51 (9): 817–827. doi:10.3109/15563650.2013.844822. PMID24111553. S2CID43541851.
Schilling, Stephan; Wasternack, Claus; Demuth, Hans-Ulrich (1 August 2008). "Glutaminyl cyclases from animals and plants: a case of functionally convergent protein evolution". Biological Chemistry. 389 (8): 983–91. doi:10.1515/BC.2008.111. PMID18979624. S2CID24074284.
Pepeu, Giancarlo; Spignoli, Giacomo (January 1989). "Nootropic drugs and brain cholinergic mechanisms". Progress in Neuro-Psychopharmacology and Biological Psychiatry. 13: S77 –S88. doi:10.1016/0278-5846(89)90112-7. PMID2694231. S2CID11309268.
Liss, D. B.; Paden, M. S.; Schwarz, E. S.; Mullins, M. E. (11 October 2013). "What is the clinical significance of 5-oxoproline (pyroglutamic acid) in high anion gap metabolic acidosis following paracetamol (acetaminophen) exposure?". Clinical Toxicology. 51 (9): 817–827. doi:10.3109/15563650.2013.844822. PMID24111553. S2CID43541851.