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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Determinants for receptor interaction and cell killing on the avian retrovirus glycoprotein gp85.

The virion envelope glycoprotein gp85 confers a high degree of subgroup specificity for interaction with distinct cell receptors. Specific subgroups of gp85 have been associated with a cytopathic virus-cell interaction, most likely resulting from reduced resistance to superinfection, which allows the buildup of excessive amounts of viral DNA. Previous nucleotide sequence analysis of the gp85 coding region identified small regions of variable amino acid sequence within a conserved framework. To define the role of these variable regions we constructed a series of molecular clones carrying novel combinations of variable regions from viruses. Analysis of rescued virus shows that receptor binding is determined by the interaction of two major regions and one minor region in the middle of gp85. Cytopathogenicity is not associated with any specific variable region but rather with the ability to recognize the subgroup B receptor on chicken cells.[1]

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