Biochemical and genomic characterization of muscovy duck parvovirus
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- Le Gall-Reculé, G. & Jestin, V. Archives of Virology (1994) 139: 121. doi:10.1007/BF01309459
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A duck parvovirus (DPV) isolated from muscovy ducks during the epizootic in France in 1989 was purified from inoculated allanto-amniotic fluids by CsCl density gradient centrifugation and characterized. Full and empty non-enveloped icosahedral viral particles were observed banding at densities of 1.39 to 1.42 and 1.38 respectively, with a diameter of 22 to 23 nm. Viral proteins were analyzed by SDS-PAGE and the estimated molecular weights of the 3 major proteins were 91, 78 and 58 kDa. The nucleic acid was shown to be a single-stranded DNA of about 5300 bases with terminal palindromic hairpins. These results confirm the previous classification of the virus in the familyParvoviridae established by Jestin et al.  on morphological and serological bases. The DPV DNA was reannealed indicating that complementary DNA strands were encapsidated. A partial restriction endonuclease map was also established. This work constitutes the first biochemical and genomic description of a muscovy duck parvovirus.