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O9515

Sigma-Aldrich

Prolyl oligopeptidase

recombinant, expressed in E. coli

Synonym(s):

Prolyl endopeptidase

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About This Item

UNSPSC Code:
12352204
NACRES:
NA.54

recombinant

expressed in E. coli

Quality Level

200

Assay

≥90% (SDS-PAGE)

form

solution

specific activity

≥10 unit/μg protein

mol wt

81.6 kDa

shipped in

dry ice

storage temp.

−70°C

General description

Prolyl oligopeptidase (PO) is mapped to human chromosome 6q22. It comprises of a N-terminal β-propeller domain and C-terminal α/β hydrolase catalytic domain. PO is highly expressed in the neuronal cytoplasm and its expression increases with age.
Prolyl oligopeptidase is a cytosolic serine peptidase which cleaves peptide bonds at the C′ terminal side of prolines. It is only capable of processing peptides containing no more than 30 amino acids due to the unique β-propeller region that regulates access to the active site.

Application

Prolyl oligopeptidase has been used in a study to assess the mechanism of lithium ion action. It has also been used in a study to investigate its distribution in human tissue and body fluids.
Prolyl oligopeptidase has been used in the prolyl oligopeptidase inhibitory activity assay in lyophilized protein hydrolysate samples and Schistosoma mansoni samples.

Biochem/physiol Actions

Prolyl oligopeptidase (PO) regulates physiological processes and is crucial for the generation of active hormone and peptide fragments from their precursors. It shows elevated levels in psychiatric disorders and Alzheimer′s patients. Altered levels of PO is observed in patients with bipolar disorder. High expression of PO may promote metastasis of malignant ovarian and colorectal tumors.

Unit Definition

One unit will hydrolyze 1.0 picomole of Ala-Pro-aminomethylcoumarin per minute at pH 7.4 at 25 °C.

Physical form

Supplied as a solution in 45 mM Tris-HCl, pH 8.0, 124 mM NaCl, 2.4 mM KCl, 10% glycerol, 3 mM DTT and variable amounts of imidazole.

Preparation Note

N-terminal GST-tagged 81.6 kDa full-length protein

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

O9515-20UG-PW:
O9515-20UG:
O9515-VAR:
O9515-BULK:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Prolyl oligopeptidase and bipolar disorder
Williams, Robin SB
Clinical neuroscience research, 4(3-4), 233-242 (2004)
L Polgár
Cellular and molecular life sciences : CMLS, 59(2), 349-362 (2002-03-28)
A group of serine peptidases, the prolyl oligopeptidase family, cannot hydrolyze peptides containing more than about 30 residues. This group is unrelated to the classical trypsin and subtilisin families, and includes dipeptidyl peptidase IV, acylaminoacyl peptidase and oligopeptidase B, in
Distribution of Prolyl Oligopeptidase in Human Peripheral Tissues and Body Fluids
Goossens, F., et al.
Clinical Chemistry and Laboratory Medicine, 34, 17-22 null
Prolyl oligopeptidase from the blood fluke Schistosoma mansoni: from functional analysis to anti-schistosomal inhibitors
Fajtova P, et al.
PLoS Neglected Tropical Diseases, 9(6), e0003827-e0003827 (2015)
Distribution of prolyl oligopeptidase in human peripheral tissues and in ovarian and colorectal tumors
Myohanen TT, et al.
The Journal of Histochemistry and Cytochemistry, 60(9), 706-715 (2012)
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