THE BIOLOGY OF INFLUENZA VIRUSES - PMC - PubMed Central …
Influenza viruses have a standard nomenclature that includes virus type; species from which it was isolated (if non-human); location at which it was isolated; isolate number; isolate year; and, for influenza A viruses only, HA and NA subtype.
Structure of influenza virus | Virology Blog
2009年4月30日 · Today we’ll start with the basic structure of influenza virus, illustrated above. The influenza virion (as the infectious particle is called) is roughly spherical. It is an enveloped virus – that is, the outer layer is a lipid membrane which is taken from the …
Molecular Expressions Cell Biology: The Influenza (Flu) Virus
2015年11月13日 · The structure of the influenza virus (see Figure 1) is somewhat variable, but the virion particles are usually spherical or ovoid in shape and 80 to 120 nanometers in diameter. Sometimes filamentous forms of the virus occur as well, and are more common among some influenza strains than others.
Influenza Virus: The Biology of a Changing Virus - PMC
This introduction provides an overview of influenza virus classification, structure, and life cycle. We also include a brief review of the clinical manifestations of influenza and the molecular determinants for virulence.
A comprehensive map of the influenza A virus replication cycle
2013年10月2日 · A systematic understanding of influenza viral infection in host cells is needed to facilitate the identification of influential host response mechanisms and potential drug targets. We constructed a comprehensive map of the influenza A virus (‘IAV’) life cycle (‘FluMap’) by undertaking a literature-based, manual curation approach.
An Overview of Influenza Viruses and Vaccines - PMC
There are four genera of influenza virus that infect vertebrates: influenza virus A, B, C, and D which are distinguished based on antigen differences in their matrix protein and nucleoprotein. Type A is by far the most virulent virus that causes severe respiratory disease or death.
Influenza virus structure, illustration - Stock Image - F019/6446
3D illustration of influenza virus particle structure. The virus consists of a ribonucleic acid (RNA, orange coils) core, surrounded by a nucleocapsid (purple) and a lipid envelope (yellow). Spanning the capsid and envelope are M2 proteins (red), that act as proton pumps.
The structure of the influenza A virus genome | Nature …
2019年7月22日 · We show that different IAV genome segments acquire distinct RNA conformations and form both intra- and intersegment RNA interactions inside influenza virions. We use our detailed map of IAV genome...
Influenza: A case study: 2.1 Structure of influenza - OpenLearn
The structure of influenza A is shown schematically in Figure 4. The viral genomic RNA, which consists of eight separate strands (see Section 2.3), is enclosed by its associated nucleoproteins to make a ribonucleoprotein complex (RNP), and this is …
Virology of human influenza - World Health Organization (WHO)
2010年5月13日 · The influenza A and B virus genomes consist of 8 separate segments, each coding for 1 or several functionally important proteins required for virus entry, replication or virus structure. HA binds to its cellular receptor, sialic acid (N-acetyl-neuraminic acid).