Abstract
Duck enteritis virus (DEV) causes a contagious, acute and highly lethal disease in all ages of birds from the order Anseriformes. DEV leads to heavy economic losses to the commercial duck industry due to its high mortality rate and decrease in egg production. With development of molecular biology, more information about DEV genes is reported, nonetheless little information is known about DEV UL29 gene and its product major DNA-binding protein or infected-cell protein 8 (ICP8). The sequence characteristics of DEV UL29 gene was initially showed in our article. Phylogenetic tree analysis provided useful proof that DEV belongs to the subfamily Alphaherpesvirinae. The predicted characteristics of ICP8 amino acid sequence showed that ICP8 possesses good immunogenicity and is a hydrophobic protein. These findings correlate with the experimental results that ICP8 protein forms inclusion bodies in the prokaryotic expression system. By immunofluorescence we have identified ICP8 as nuclear protein. All the fundamental data in this article contribute to understanding the functions of DEV UL29 gene and its product ICP8.
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