Structure of influenza virus ribonucleoprotein complexes and their packaging into virions.

Abstract:

:The influenza A virus genome consists of eight segmented, single-stranded, negative-sense RNAs. Each viral RNA (vRNA) segment forms a ribonucleoprotein (RNP) complex together with NPs and a polymerase complex, which is a fundamental unit for transcription and replication of the viral genome. Although the exact structure of the intact RNP remains poorly understood, recent electron microscopic studies have revealed certain structural characteristics of the RNP. This review focuses on the findings of these various electron microscopic analyses of RNPs extracted from virions and RNPs inside virions. Based on the morphological and structural observations, we present the architecture of RNPs within a virion and discuss the genome packaging mechanism by which the vRNA segments are incorporated into virions.

journal_name

Rev Med Virol

authors

Noda T,Kawaoka Y

doi

10.1002/rmv.666

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

380-91

issue

6

eissn

1052-9276

issn

1099-1654

journal_volume

20

pub_type

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