The Avian Coronavirus Multiplication Strategy
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Infectious bronchitis virus (IBV), the prototype of the coronavirus family, possesses a single-stranded polyadenylated RNA genome. This genome consists of a single polynucleotide chain with an estimated molecular weight of between 6 and 9 × 106,1,2,3,4. Since the genome is infectious, i.e., it is of positive polarity,5 it must encode both the structural proteins of the virus particle and non-structural polypeptides some or all of which function in the infected cell to replicate the virus genetic material and to transcribe viral mRNA.
KeywordsApparent Molecular Weight Infectious Bronchitis Virus Semliki Forest Virus Subgenomic RNAs Structural Polypeptide
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