Homogeneous preparations of IL-28A, IL-28B, and IL-29 have been produced by mutating one or more of the cysteine residues in the polynucleotide sequences encoding the mature proteins. The cysteine mutant proteins can be shown to either bind to their cognate receptor or exhibit biological activity. One type of biological activity that is shown is an antiviral activity.

 
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< Large capacity viral amplicon using a minimal orilyt from human cytomegalovirus

> Minimally immunogenic variants of SDR-grafted humanized antibody CC49 and their use

> Transdermal delivery system for dried particulate or lyophilized peptides and polypeptides

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