19924
Pyroglutamate Aminopeptidase from Pyrococcus furiosus, recombinant from E. coli
7-13 mU (per vial)
Synonym(s):
Pyrase, Pyroglutamyl-Peptidase I, Pyrrolidone Carboxyl Peptidase
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About This Item
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recombinant
expressed in E. coli
form
lyophilized
specific activity
7-13 mU (per vial)
mol wt
Mr ~28000
storage temp.
−20°C
Related Categories
Packaging
package of 0.01 Unit
Unit Definition
1 U corresponds to the amount of enzyme which hydrolyzes 1 μmol Pyroglutamate-p-nitroanilide per minute at pH 7.0 and 37 °C
Analysis Note
enzyme activity: the optimum temperature is 95-100 °C (the enzyme is stable up to 75 °C), the optimum pH is 6-9 (stable from pH 6-9). Inhibitors: PCMB, Hg+.
Other Notes
An enzyme that removes pyroglutamic acid (pGlu) from pGlu-peptide and proteins; employed in Edman degradation.
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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Analytical biochemistry, 260(2), 183-187 (1998-07-11)
For larger proteins, efficient deblocking prior to Edman sequencing is especially important to obtain quality, extended sequencing data which is limited by the stepwise accumulation of background from the random acid hydrolysis of the protein. Therefore, any portion that remains
Journal of biochemistry, 106(3), 383-388 (1989-09-01)
The cDNA clone of Geotrichum candidum (Geo.) lipase was isolated from the Geo. cDNA library by colony hybridization using 32P-labeled oligonucleotides corresponding to a partial amino acid sequence of this enzyme. The nucleotide sequence of the cDNA determined by the
Journal of agricultural and food chemistry, 54(19), 6984-6988 (2006-09-14)
In order to determine pyroglutamic acid levels in plasma, we developed a method based on precolumn derivatization of the carboxyl group of pyroglutamic acid with 2-nitrophenylhydrazine. Eight-week-old male SD strain rats were administered 200 mg of an acidic peptide fraction
Neurochemistry international, 50(2), 404-417 (2006-11-15)
TRH administration induces arousal, improves cognition, and modulates glutamatergic and cholinergic transmission in hippocampal neurons. To study the possible involvement of TRH neurons in learning and memory processes, gene expression of TRH, its receptors, and pyroglutamyl peptidase (PPII), were measured
Regulatory peptides, 139(1-3), 52-58 (2006-11-25)
Prolyl endopeptidase and pyroglutamyl peptidase I are enzymes which participate in the degradation of thyrotropin-releasing hormone (TRH), a hormone which is thought to play an important role in the development of organs and tissues. Here, we have characterized the ontogeny
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