Enzymological Characteristics of Avian Influenza A Virus Neuraminidase
Identifieur interne : 002329 ( Main/Exploration ); précédent : 002328; suivant : 002330Enzymological Characteristics of Avian Influenza A Virus Neuraminidase
Auteurs : Katsuhiro Kiyotani ; Naomi Takei ; Masato Senoo ; Shinichi Takao ; Koichi Otsuki ; Misao Tsubokura ; Tetsuya YoshidaSource :
- Microbiology and Immunology [ 0385-5600 ] ; 1987-11.
Abstract
Neuraminidases of 18 strains of avian influenza A virus were examined by both colorimetric and fluorometric assays using fetuin and 4‐methylumbelliferyl‐N‐Ac‐α‐d‐neuraminide as substrates, respectively, to compare them with those of human influenza A and B viruses. The ratios of the neuraminidase activity of avian influenza virus measured by the colorimetric assay method to that measured by the fluorometric assay were distributed in the range of 2.4–20.3. The enzyme of avian influenza virus showed calcium‐ion dependence in both assay methods. These results suggest that neuraminidase of avian influenza A virus is varies greatly from one strain to another in substrate specificity as compared with those of human influenza A and B viruses, and that some strains of avian influenza A virus have a neuraminidase with unique enzymological characteristics different from that of human influenza A virus as well as that of influenza B virus.
Url:
DOI: 10.1111/j.1348-0421.1987.tb01347.x
Affiliations:
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The ratios of the neuraminidase activity of avian influenza virus measured by the colorimetric assay method to that measured by the fluorometric assay were distributed in the range of 2.4–20.3. The enzyme of avian influenza virus showed calcium‐ion dependence in both assay methods. These results suggest that neuraminidase of avian influenza A virus is varies greatly from one strain to another in substrate specificity as compared with those of human influenza A and B viruses, and that some strains of avian influenza A virus have a neuraminidase with unique enzymological characteristics different from that of human influenza A virus as well as that of influenza B virus.</div></front></TEI><affiliations><list></list><tree><noCountry><name sortKey="Kiyotani, Katsuhiro" sort="Kiyotani, Katsuhiro" uniqKey="Kiyotani K" first="Katsuhiro" last="Kiyotani">Katsuhiro Kiyotani</name><name sortKey="Otsuki, Koichi" sort="Otsuki, Koichi" uniqKey="Otsuki K" first="Koichi" last="Otsuki">Koichi Otsuki</name><name sortKey="Senoo, Masato" sort="Senoo, Masato" uniqKey="Senoo M" first="Masato" last="Senoo">Masato Senoo</name><name sortKey="Takao, Shinichi" sort="Takao, Shinichi" uniqKey="Takao S" first="Shinichi" last="Takao">Shinichi Takao</name><name sortKey="Takei, Naomi" sort="Takei, Naomi" uniqKey="Takei N" first="Naomi" last="Takei">Naomi Takei</name><name sortKey="Tsubokura, Misao" sort="Tsubokura, Misao" uniqKey="Tsubokura M" first="Misao" last="Tsubokura">Misao Tsubokura</name><name sortKey="Yoshida, Tetsuya" sort="Yoshida, Tetsuya" uniqKey="Yoshida T" first="Tetsuya" last="Yoshida">Tetsuya Yoshida</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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