Fluorometric Measurement of Neuraminidase Activity of Influenza Viruses

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Title ( eng )
Fluorometric Measurement of Neuraminidase Activity of Influenza Viruses
Title ( jpn )
螢光比色法によるインフルエンザウイルスノイラミニダーゼ活性の測定
Creator
Kiyotani Katsuhiro
Takei Naomi
Matsuo Yoshiyasu
Source Title
Hiroshima Journal of Medical Sciences
Volume 33
Issue 2
Start Page 287
End Page 292
Journal Identifire
[PISSN] 0018-2052
[EISSN] 2433-7668
[NCID] AA00664312
Abstract
A rapid and simple assay method for determining neuraminidase activity was investigated fluorometrically with 4-methylumbelliferyl-N-Ac-α-D-neuraminide as a substrate.

The time required for performance was less than 3 hr and the activity could be simply measured with a fluorescent spectrophotometer.

Neuraminidase activity in culture supernatant of MDCK cell infected with a small quantity of influenza A/Aichi/2/68 virus was demonstrated by the fluorometric assay 24 hr after infection, when no viral cytopathogenic effect could be observed and no viral multiplication could be demonstrated by the hemagglutination test and the colorimetric neuraminidase assay method using fetuin as a substrate.

The result was that the minimum number of virion detectable by the fluorometric neuraminidase assay method was approximately 10^3 order.
Keywords
4-Methylumbelliferyl-N-Ac-α-D-neuraminide
Neuraminidase
Influenza virus
NDC
Medical sciences [ 490 ]
Language
eng
Resource Type departmental bulletin paper
Publisher
Hiroshima University School of Medicine
Date of Issued 1984-06
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0018-2052
[NCID] AA00664312
[PMID] 6480393