How from the animal it is viral that first flows " Jump " Get on people

How from the animal it is viral that first flows " Jump " Get on people
How from the animal it is viral that first flows " Jump " Get on people
It is reported ' Reporter Li TianShu) First type H1N1 influenza virus OK is from the animal " Jump " Get on the mankind? The researchers of University of California find, sudden change takes place to a key member of first type H1N1 influenza virus, may be captured from animal to human body finally " The line of defence " . This research results have been revealed by " journal of American Academy of Sciences " recently. Influenza virus polymerase composed of virus albumens PB1, PB2 and PA, usually determine the virus infects the host's complexity. Discovered, bird flu and pig's influenza were in the course of infecting humanly in the past, the mutation that PB2 substitutes glutaminic acid with 2,6-diaminocaproic acid is essential, but researchers have not found this sudden change in first type H1N1 influenza virus. As to this, researchers guess, the first type H1N1 influenza virus protein PB2 may contain another kind of formal sudden change. The molecule and researcher of department of biology of cell of branch school in Berkeley of University of California find under study for action, a sudden change which is called SR many attitudes, may " jump " from the animal at first type H1N1 influenza virus Have played an essential role on one's body to the mankind. Discover, this mutation has strengthened activity of virus polymerase and virus duplication in human cells, even add this kind of sudden change to influenza virus that usually can't infect human cells and can infect the mankind too. For this reason, researchers brief on, in the course of taking precautions against virus, need paying close attention to the sudden change course of the virus more.


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