A large region within the Rous sarcoma virus matrix protein is dispensable for budding and infectivity

Timothy D. Nelle, John W. Wills

    Research output: Contribution to journalArticlepeer-review

    44 Scopus citations

    Abstract

    All retroviruses have a layer of matrix protein (MA) situated directly beneath the lipid of their envelope. This protein is initially expressed as the amino-terminal sequence of the Gag polyprotein, where it plays an important role in binding Gag to the plasma membrane during the early steps of the budding process. Others have suggested that MA may provide additional functions during virion assembly, including the selective incorporation of viral glycoproteins and the RNA genome into the emerging virion. To further study the role of the Rous sarcoma virus MA sequence in the vital replication cycle, we have pursued an extensive deletion analysis. Surprisingly, the entire second half of MA (residues 87 to 155) and part of the neighboring p2 sequence were found to be dispensable not only for budding but also for infectivity in avian cells. Thus, all of the functions associated with the Rous sarcoma virus MA sequence must be contained within its first half.

    Original languageEnglish (US)
    Pages (from-to)2269-2276
    Number of pages8
    JournalJournal of virology
    Volume70
    Issue number4
    DOIs
    StatePublished - 1996

    All Science Journal Classification (ASJC) codes

    • Microbiology
    • Immunology
    • Insect Science
    • Virology

    Fingerprint

    Dive into the research topics of 'A large region within the Rous sarcoma virus matrix protein is dispensable for budding and infectivity'. Together they form a unique fingerprint.

    Cite this