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A8200

Sigma-Aldrich

Aminopeptidase from Aeromonas proteolytica

lyophilized powder, 50-150 units/mg protein

Synonym(e):

AAP, Aminopeptidase from Vibrio proteolyticus, bacterial leucyl aminopeptidase

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About This Item

CAS-Nummer:
EC-Nummer:
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352204
NACRES:
NA.54

Qualität

Proteomics Grade

Qualitätsniveau

Form

lyophilized powder

Spezifische Aktivität

50-150 units/mg protein

Mol-Gew.

29.5 kDa

Zusammensetzung

Protein, ~40% biuret

Löslichkeit

H2O: soluble 0.9-1.1 mg/mL, clear, colorless

Fremdaktivität

endopeptidase, essentially free

Lagertemp.

−20°C

Allgemeine Beschreibung

A zinc-containing enzyme.

Spezifität

Catalyzes the release of an N-terminal amino acid, preferentially leucine, but not glutamic or aspartic acids.

Anwendung

Aminopeptidases are a family of widely distributed proteases, which may be used to study many significant biological processes such as protein maturation, hormone production, and peptide digestion. The enzyme has been used to measure the kinetic rate constant for the binding of bestatin, a general protease inhibitor, to aminopeptidase.

Biochem./physiol. Wirkung

Aminopeptidase from Aeromonas proteolytica is a metalloenzyme, which contains 2 atoms of Zn2+ in a single polypeptide with an approximate molecular weight of 29.5 kDa as determined by sedimentation. This enzyme has a high degree of stability, being stable even at temperatures of 70 °C for several hours. Partial inactivation occurs in 8 M urea. Maximum stability and activity are between pH 8.0-8.5. Aminopeptidase from Aeromonas proteolytica can function as an esterase.
Aminopeptidase from Aeromonas proteolytica is involved in protein maturation, hormone production and peptide digestion.

Einheitendefinition

One unit will hydrolyze 1.0 μmole of L-leucine p-nitroanilide to L-leucine and p-nitroaniline per min at pH 8.0 at 25 °C.

Physikalische Form

Lyophilized powder containing tricine buffer, pH 8.0, zinc chloride and stabilizer.

Angaben zur Herstellung

Dissolves in water at 0.9-1.1 mg/mL concentration to form a clear, colorless solution.

Piktogramme

Health hazardExclamation mark

Signalwort

Danger

Gefahreneinstufungen

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

Zielorgane

Respiratory system

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


Analysenzertifikate (COA)

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James Kahn et al.
Biochemistry and molecular biology education : a bimonthly publication of the International Union of Biochemistry and Molecular Biology, 38(4), 238-241 (2011-05-14)
We have recently designed a biochemistry laboratory experiment for the purpose of providing students an advanced experience with enzyme kinetics and the kinetics of binding. Bestatin, a well-known and commercially available general protease inhibitor, is a slow-binding inhibitor of aminopeptidase
S Nirasawa et al.
The Biochemical journal, 341 ( Pt 1), 25-31 (1999-06-23)
An aminopeptidase from Aeromonas caviae T-64 was translated as a preproprotein consisting of three domains; a signal peptide (19 amino acid residues), an N-terminal propeptide (101 residues) and a mature region (273 residues). We demonstrated that a proteinase, which was
Krzysztof P Bzymek et al.
The Journal of biological chemistry, 279(30), 31018-31025 (2004-05-13)
Glutamate 151 has been proposed to act as the general acid/base during the peptide hydrolysis reaction catalyzed by the co-catalytic metallohydrolase from Aeromonas proteolytica (AAP). However, to date, no direct evidence has been reported for the role of Glu-151 during
Kiet T Nguyen et al.
Methods in molecular medicine, 142, 117-130 (2008-04-26)
The emergence of bacterial pathogens resistant to current antibiotics has caused an urgent demand for new treatments. Peptide deformylase (PDF) has become an exciting target for designing novel antibiotics. To facilitate the screening of PDF inhibitors, three robust, coupled assays
K M Huntington et al.
Biochemistry, 38(47), 15587-15596 (1999-11-26)
Peptide-derived thiols of the general structure N-mercaptoacyl-leucyl-p-nitroanilide (1a-c) were synthesized and found to be potent, slow-binding inhibitors of the aminopeptidase from Aeromonas proteolytica (AAP). The overall potencies (K(I)) of these inhibitors against AAP range from 2.5 to 57 nM exceeding

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