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19924

Sigma-Aldrich

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

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

recombinant

expressed in E. coli

Quality Level

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.

Pictograms

Health hazardExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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J Mozdzanowski et al.
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
Y Shimada et al.
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
Jai K Kaushik et al.
Biochemistry, 45(23), 7100-7112 (2006-06-07)
Pyrrolidone carboxyl peptidases (PCPs) from hyperthermophiles have a structurally conserved and completely buried Glu192 in the hydrophobic core; in contrast, the corresponding residue in the mesophile protein is a hydrophobic residue, Ile. Does the buried ionizable residue contribute to stabilization
Adolfo Varona et al.
American journal of physiology. Renal physiology, 292(2), F780-F788 (2006-09-21)
Peptides play important roles in cell regulation and signaling in many tissues and are regulated by peptidases, most of which are highly expressed in the kidney. Several peptide convertases have a function in different tumor stages, and some have been
Gorka Larrinaga et al.
Neuroscience letters, 383(1-2), 136-140 (2005-06-07)
We evaluated the subcellular distribution of four membrane-bound aminopeptidases in the human and rat brain cortex. The particulate enzymes under study--puromycin-sensitive aminopeptidase (PSA), aminopeptidase N (APN), pyroglutamyl-peptidase I (PG I) and aspartyl-aminopeptidase (Asp-AP)--were fluorometrically measured using beta-naphthylamide derivatives. Membrane-bound aminopeptidase

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