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TitleOrganization of the influenza virus replication machinery.
Journal, issue, pagesScience, Vol. 338, Issue 6114, Page 1631-1634, Year 2012
Publish dateDec 21, 2012
AuthorsArne Moeller / Robert N Kirchdoerfer / Clinton S Potter / Bridget Carragher / Ian A Wilson /
PubMed AbstractInfluenza virus ribonucleoprotein complexes (RNPs) are central to the viral life cycle and in adaptation to new host species. RNPs are composed of the viral genome, viral polymerase, and many copies ...Influenza virus ribonucleoprotein complexes (RNPs) are central to the viral life cycle and in adaptation to new host species. RNPs are composed of the viral genome, viral polymerase, and many copies of the viral nucleoprotein. In vitro cell expression of all RNP protein components with four of the eight influenza virus gene segments enabled structural determination of native influenza virus RNPs by means of cryogenic electron microscopy (cryo-EM). The cryo-EM structure reveals the architecture and organization of the native RNP, defining the attributes of its largely helical structure and how polymerase interacts with nucleoprotein and the viral genome. Observations of branched-RNP structures in negative-stain electron microscopy and their putative identification as replication intermediates suggest a mechanism for viral replication by a second polymerase on the RNP template.
External linksScience / PubMed:23180774 / PubMed Central
MethodsEM (helical sym.) / EM (single particle)
Resolution13.0 - 40.0 Å
Structure data

2209

2ymn

EMDB-2209, PDB-2ymn:
Organization of the Influenza Virus Replication Machinery
Method: EM (helical sym.) / Resolution: 21.0 Å

2211

2ymn

EMDB-2211, PDB-2ymn:
Organization of the Influenza Virus Replication Machinery
Method: EM (single particle) / Resolution: 40.0 Å

EMDB-2212:
Organization of the Influenza Virus Replication Machinery
Method: EM (single particle) / Resolution: 20.0 Å

EMDB-2213:
Organization of the Influenza Virus Replication Machinery
Method: EM (single particle) / Resolution: 13.0 Å

Source
  • influenza a virus (a/puerto rico/8/1934(h1n1))
KeywordsVIRAL PROTEIN / RNP / POLYMERASE

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