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1. US20210130793 - METHOD FOR GRADUAL CONSTRUCTION OF REASSORTANT INFLUENZA VIRUS

官庁
アメリカ合衆国
出願番号 16639639
出願日 23.08.2018
公開番号 20210130793
公開日 06.05.2021
公報種別 A1
IPC
C12N 7/00
C化学;冶金
12生化学;ビール;酒精;ぶどう酒;酢;微生物学;酵素学;突然変異または遺伝子工学
N微生物または酵素;その組成物;微生物の増殖,保存,維持;突然変異または遺伝子工学;培地
7ウイルス,例.バクテリオファージ;それを含む組成物;その調製または精製
CPC
C12N 2760/16151
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
2760ssRNA Viruses negative-sense
00011ssRNA Viruses negative-sense
16011Orthomyxoviridae
16111Influenzavirus A, i.e. influenza A virus
16151Methods of production or purification of viral material
C12N 7/00
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
7Viruses; Bacteriophages; Compositions thereof; Preparation or purification thereof
C12N 2760/16051
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
2760ssRNA Viruses negative-sense
00011ssRNA Viruses negative-sense
16011Orthomyxoviridae
16051Methods of production or purification of viral material
出願人 The Research Foundation for Microbial Diseases of Osaka University
発明者 Takao Fujimoto
優先権情報 2017-163114 28.08.2017 JP
発明の名称
(EN) METHOD FOR GRADUAL CONSTRUCTION OF REASSORTANT INFLUENZA VIRUS
要約
(EN)

Provided is a production method for reassortant influenza virus having genome segments of two or more kinds of influenza virus in the case where an antigenic strain and donor strain have similar antigenicities. The production method makes use of the first influenza virus containing an antigenic protein, the second influenza virus having an antigenic protein having antigenicity similar to that of the strain, and the third influenza virus having an antigenic protein having antigenicity different from that of the strain, and includes the steps of: coculturing the strain and the strain by infecting a host therewith, to produce reassortant influenza viruses; selecting influenza virus having the antigenic protein from the viruses; then coculturing the strain and the selected strain by infecting a host therewith; and selecting influenza virus having the antigenic protein from reassortant influenza viruses produced from the strain and the strain.