Prolyl Oligopeptidase
Inhibition of prolyl oligopeptidase with a synthetic unnatural dipeptide
... Prolyl Oligopeptidase 8.8 mg/ml solution in 20 mM MES pH=6.5 was mixed with the precipitation buffer in a 2:1 ratio. The 3 µL drops of the mixture were suspended over the wells and left to equilibrate. ...
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Colocalization of Amanitin and a Candidate Toxin-Processing Prolyl Oligopeptidase in Amanita Basidiocarps
... Fungi in the basidiomycetous genus Amanita owe their high mammalian toxicity to the bicyclic octapeptide amatoxins such as ␣ -amanitin. Amatoxins and the related phallotoxins (such as the heptapeptide phalloidin) are ...
10
Pharmacophore modelling and docking studies of pyrrolidinyl pyridone and pyrazinone analogues as prolyl oligopeptidase(POP) inhibitors
... This study shows the generation of a pharmacophore model AAHRR41 for Pyrrolidinyl Pyridone and Pyrazinone analogues as potent inhibitors of Prolyl oligopeptidase(POP). Pharmacophore modeling correlates ...
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The loops facing the active site of prolyl oligopeptidase are crucial components in substrate gating and specificity
... Prolyl oligopeptidase (POP, PREP, PEP) (EC 3.4.21.26) is a member of a family of serine peptidases unrelated to the classic trypsin and subtilisin. The family includes enzymes of different specificities, ...
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The MSDIN family in amanitin-producing mushrooms and evolution of the prolyl oligopeptidase genes
... and prolyl oligopeptidases (POPA and POPB) were ...constructed. Prolyl oligopeptidase B (POPB), a key enzyme in the biosynthetic pathway, was used in phylogenetic reconstruction to infer the ...
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The expression levels of prolyl oligopeptidase responds not only to neuroinflammation but also to systemic inflammation upon liver failure in rat models and cirrhotic patients
... Prolyl oligopeptidase (PREP; EC 3.4.21.26) is a serine peptidase able to cleave short peptides (<30 amino acids) at the C-side of a proline residue [10, 11]. Although present in all organs, PREP is ...
14
Kinetic landscape of a peptide bond forming prolyl oligopeptidase
... he prolyl oligopeptidase (POP) family comprises endo- and exopeptidases that can be identi fi ed in all domains of ...the prolyl oligopeptidase family but capable of catalyzing both cleavage ...
10
Prolyl oligopeptidase is inhibited in relapsing-remitting multiple sclerosis
... Prolyl oligopeptidase (POP) is a proline-specific endo- peptidase, highly expressed in brain, that cleaves neuro- active peptides implicated in memory, learning and also in neurodegeneration ...
8
Crystal structures of trypanosoma brucei oligopeptidase B broaden the paradigm of catalytic regulation in prolyl oligopeptidase family enzymes
... The different structures observed in the open state of AAP, whilst not identical to those observed for OPB and PREP, similarly signify an increased flexibility of the active site Arg and[r] ...
11
Pharmacological Prospects of Oxygenated Abietane Type Diterpenoids from Taxodium distichum Cones
... Taxodione showed potent activity against a number of different targets, and salvinolone and 14-deoxycoleon U showed remarkable inhibitory activities against prolyl oligopeptidase POP and[r] ...
7
FoxO3 activation in hypoxic tubules prevents chronic kidney disease
... by prolyl hydroxylase 1 (PHD1), which depends on oxygen, α-ketoglutarate, iron, and ascorbic acid for its activity, similar to the regulation of α sub- unit of HIF ...reduced prolyl hydroxylated FoxO3 in ...
17
Fibrocytes are associated with vascular and parenchymal remodelling in patients with obliterative bronchiolitis
... It is hypothesised that hypoxia is a major contributor to the induction of remodelling of vessels and in the balance between deposition and degradation of ECM. This could occur due to an increased level of nitric oxide ...
11
THE INTERACTION OF COSOLVENTS, PROTEOLYTIC ENZYMES AND SELECTIVE METAL IONS WITH ￡-CASEIN - THE STRUCTURE - STABILITY RELATIONSHIP
... comparable. Among all the proteases, aminopeptidase, carboxypeptidase, fungal protease, bacterial protease and chymotrypsin employed for the hydrolysis of -casein, chymotryptic hydrolysates were found to be possessing ...
8
Preconditioning of bone marrow mesenchymal stem cells by prolyl hydroxylase inhibition enhances cell survival and angiogenesis in vitro and after transplantation into the ischemic heart of rats
... the prolyl hydroxylase inhibitor DMOG prevents acute damage in the ischemic heart and brain as well as ameliorating BMSC cell death under pathological conditions ...
12
Pin1 regulates parathyroid hormone mRNA stability
... Secondary hyperparathyroidism often occurs in chronic kidney disease (CKD) and vitamin D deficiency, resulting in increased fractures and mortality. Understanding factors that stimulate parathyroid hormone (PTH) ...
6
Position-dependent energy transfer between ruthenium(II) and osmium(II) modified coiled-coil alpha-helical peptides and oligoproline recognition by a beta-hairpin peptide
... A disulfide exchange system was designed for studying aromatic-prolyl interactions between a trpzip peptide and a series of oligoproline peptides which adopt the PPII helix conformatio[r] ...
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Patterns of extracellular proline specific endopeptidases in Legionella and Flavobacterium spp demonstrated by use of chromogenic peptides
... Using an enlarged selection of chromogenic peptides representing a variety of N-terminal amino acids binding to a -prolyl-proline.paranitroanilide chain, PSE activity of Legionella and F[r] ...
5
A Preliminary Investigation into the Mediating Role of Positive Affect in the Development of Posttraumatic Stress Disorder among African American Female Sexual Assault Survivors
... In the second part of this chapter, the issue of conformational dependence of partial atomic charge and its effect on electrostatic interaction and binding energy are discussed. As indicated in stud- ies by Warshel and ...
107
A propeptide toolbox for secretion optimization of Flavobacterium meningosepticum endopeptidase in Lactococcus lactis
... grade prolyl endopeptidase (PEP) to break down contaminant gluten, have sparked interest into exploring non-dietary alternatives using mucosal enzyme delivery vectors, such as ...xanthus prolyl endo- ...
8
Prolyl-hydroxylase 3: evolving roles for an ancient signaling protein
... PHD3, prolyl-4-hydroxylase; Ref, reference; DNA, deoxyribonucleic acid; MEF, mouse embryonic firbroblasts; PKM2, pyruvate kinase isoenzyme; HIF, hypoxia-inducible transcription factor; UT-SCC, ; PC12, ...
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