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    Virology. 1988 Jun;164(2):487-97.

    Measles virus L protein evidences elements of ancestral RNA polymerase.

    Source

    Neurology Service, East Orange VA Medical Center, New Jersey 07019.

    Abstract

    We have determined the nucleotide sequence of the measles virus (MV) L gene using a cDNA library encompassing the entire MV genome (J. Crowley et al. (1987) Intervirology, 28, 65-77). The L gene is 6639 nucleotides in length, and contains a single long open reading frame that could code for a protein of 247,611 kDa. Both the L gene and in particular the predicted L protein of MV bear substantial homology to their counterparts in Sendai virus and Newcastle disease virus, suggesting that the multifunctional nature of paramyxovirus L proteins imposes strong evolutionary constraints. The predicted MV L protein also contains distinct elements of a postulated ancestral RNA polymerase.

    PMID:
    2835864
    [PubMed - indexed for MEDLINE]

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