title: Aminopeptidase in human CSF which degrades delta-sleep inducing peptide (DSIP).
abstract: This study describes the purification and characterization of an aminopeptidase from human cerebrospinal fluid capable of degrading delta-sleep-inducing-peptide (DSIP). The enzyme has an apparent molecular weight of approximately 80,000 dalton. It is sensitive towards amastatin, bestatin and EDTA and is optimally active at neutral pH. The recovered enzyme was also found to degrade other neuropeptides, e.g., the enkephalins.
authors.affiliation: Department of Pharmacology, University of Uppsala, Sweden.
authors.forename: F
authors.initials: F
authors.lastname: Nyberg
authors.forename: M
authors.initials: M
authors.lastname: Thörnwall
authors.forename: J
authors.initials: J
authors.lastname: Hetta
mesh_terms: D000626:Aminopeptidases / Q000134:cerebrospinal fluid* / Q000302:isolation & purification; D002850:Chromatography, Gel; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange; D003701:Delta Sleep-Inducing Peptide / Q000378:metabolism*; D006801:Humans; D006868:Hydrolysis; D008970:Molecular Weight; D013379:Substrate Specificity
chemical_list: D003701:Delta Sleep-Inducing Peptide; D000626:Aminopeptidases