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A6680
N-Acetylneuraminsäure-Aldolase aus E. coli
lyophilized powder, ≥20 units/mg protein (biuret)
Synonym(e):
N-Acetylneuraminat-Pyruvat-Lyase, N-Acetylneuraminsäure-Lyase, NANA-Aldolase, Sialyl-Aldolase
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25 UNITS
€ 963,00
€ 963,00
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25 UNITS
€ 963,00
About This Item
CAS-Nummer:
Beilstein:
2697172
MDL-Nummer:
UNSPSC-Code:
12352204
NACRES:
NA.32
€ 963,00
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Form
lyophilized powder
Spezifische Aktivität
≥20 units/mg protein (biuret)
Mol-Gew.
~98 kDa
Lagertemp.
−20°C
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Anwendung
Verwendet im Sialinsäure-Quantifikations-Kit, SIALIC-Q
This enzyme is useful for enzymatic determination of N-acetylneuraminic acid and sialic acid when
coupled with the related enzymes in clinical analysis.
For industrial use, this enzyme is useful for enzymatic synthesis of sialic acid.
coupled with the related enzymes in clinical analysis.
For industrial use, this enzyme is useful for enzymatic synthesis of sialic acid.
Physikalische Eigenschaften
Isoelectric point: 4.6 ± 0.1
Michaelis constant: 2.5 x 10‾3M (N-Acetylneuraminic acid)
Structure: 3 subunits (approx. 35,000) per mol of enzyme
Inhibitors: p-Chloromercuribenzoate, sodium dodecyl sulfact, Hg++, Ag+
Optimum pH: 7.5– 8.0
Optimum temp: 70°C
pH Stability: pH 6.0–9.0 (10°C, 25hr)
Thermal stability: Below 65°C (pH 7.5, 30 min)
Michaelis constant: 2.5 x 10‾3M (N-Acetylneuraminic acid)
Structure: 3 subunits (approx. 35,000) per mol of enzyme
Inhibitors: p-Chloromercuribenzoate, sodium dodecyl sulfact, Hg++, Ag+
Optimum pH: 7.5– 8.0
Optimum temp: 70°C
pH Stability: pH 6.0–9.0 (10°C, 25hr)
Thermal stability: Below 65°C (pH 7.5, 30 min)
Einheitendefinition
1 U setzt 1.0 μmol Pyruvat aus NANA pro Minute frei bei pH 7.7 und 37 °C.
Physikalische Form
Lyophilisiertes Pulver, enthält Kalium-Puffer-Salze
Lagerklassenschlüssel
10 - Combustible liquids
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
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Ivan Campeotto et al.
Journal of molecular biology, 404(1), 56-69 (2010-09-10)
The substrate specificity of Escherichia coli N-acetylneuraminic acid lyase was previously switched from the natural condensation of pyruvate with N-acetylmannosamine, yielding N-acetylneuraminic acid, to the aldol condensation generating N-alkylcarboxamide analogues of N-acetylneuraminic acid. This was achieved by a single mutation
Jacqueline Vogel-Scheel et al.
Applied and environmental microbiology, 76(15), 5181-5187 (2010-06-22)
To study the adaptation of an intestinal bacterium to its natural environment, germfree mice were associated with commensal Escherichia coli MG1655. Two-dimensional gel electrophoresis was used to identify proteins differentially expressed in E. coli MG1655 collected from either cecal contents
Yinan Zhang et al.
Applied microbiology and biotechnology, 86(2), 481-489 (2009-11-06)
N-acetyl-D-neuraminic acid (Neu5Ac) is a precursor for producing many pharmaceutical drugs such as zanamivir which have been used in clinical trials to treat and prevent the infection with influenza virus, such as the avian influenza virus H5N1 and the current
Chung-Hsien Cheng et al.
Microbial cell factories, 9, 63-63 (2010-08-31)
Overexpression of recombinant proteins usually triggers the induction of heat shock proteins that regulate aggregation and solubility of the overexpressed protein. The two-dimensional gel electrophoresis (2-DE)-mass spectrometry approach was used to profile the proteome of Escherichia coli overexpressing N-acetyl-D-glucosamine 2-epimerase
Sean R A Devenish et al.
Biochemical and biophysical research communications, 388(1), 107-111 (2009-08-04)
As part of a general study into the impact of quaternary structure on enzyme function, a library of 31 point mutations were engineered at the dimer-dimer interface of the homotetrameric (beta/alpha)(8)-barrel protein, N-acetylneuraminate lyase (NAL, EC 4.1.3.3). Disruption of the
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