A6680
N-Acetylneuraminic Acid Aldolase from microorganisms
lyophilized powder, ≥20 units/mg protein (biuret)
Synonym(s):
N-Acetylneuraminate Pyruvate Lyase, N-Acetylneuraminic Acid Lyase, NANA Aldolase, Sialic Aldolase
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About This Item
CAS Number:
NACRES:
NA.32
UNSPSC Code:
12352204
Beilstein/REAXYS Number:
2697172
MDL number:
Specific activity:
≥20 units/mg protein (biuret)
form
lyophilized powder
specific activity
≥20 units/mg protein (biuret)
mol wt
~98 kDa
storage temp.
−20°C
Quality Level
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General description
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)
Application
Used in the Sialic Acid Quantification 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.
Physical form
Lyophilized powder containing mannitol and EDTA
Other Notes
One unit will release 1.0 μmole of pyruvate from NANA per min at pH 7.7 at 37 °C.
Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
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Varun Bhaskar et al.
Proteins, 79(4), 1132-1142 (2011-02-05)
YagE is a 33 kDa prophage protein encoded by CP4-6 prophage element in Escherichia coli K12 genome. Here, we report the structures of YagE complexes with pyruvate (PDB Id 3N2X) and KDGal (2-keto-3-deoxy galactonate) (PDB Id 3NEV) at 2.2A resolution.
Jozef Nahálka et al.
Journal of biotechnology, 134(1-2), 146-153 (2008-03-04)
The propensity of a recombinant protein produced in bacteria to aggregate has been assumed to be unpredictable, and inclusion bodies have been thought of as wasted cell material. However, a target protein can be purposely driven to inclusion bodies, which
Yanhong Li et al.
Applied microbiology and biotechnology, 79(6), 963-970 (2008-06-04)
Sialic acid aldolases or N-acetylneuraminate lyases (NanAs) catalyze the reversible aldol cleavage of N-acetylneuraminic acid (Neu5Ac) to form pyruvate and N-acetyl-D: -mannosamine (ManNAc). A capillary electrophoresis assay was developed to directly characterize the activities of NanAs in both Neu5Ac cleavage
Wen-liu Yang et al.
Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences, 39(1), 57-63 (2010-02-23)
To obtain the Escherichia coli strains expressing N-Acetyl-D-neuraminic acid aldolase (Neu5Ac aldolase). The gene (nanA) coding Neu5Ac aldolase was cloned from Escherichia coli C600, and the recombinant plasmid was sequenced and expressed in Escherichia coli. Sequencing data revealed that the
Hee Gon Jeong et al.
Infection and immunity, 77(8), 3209-3217 (2009-06-03)
N-acetylneuraminic acid (Neu5Ac, sialic acid) could provide a good substrate for enteropathogenic bacteria in the intestine, when the bacteria invade and colonize in human gut. In order to analyze the role of Neu5Ac catabolism in Vibrio vulnificus pathogenesis, a mutant
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