Chimeric protein for prevention and treatment of HIV infection

Drug – bio-affecting and body treating compositions – Immunoglobulin – antiserum – antibody – or antibody fragment,... – Structurally-modified antibody – immunoglobulin – or fragment...

Reexamination Certificate

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C424S130100, C424S136100, C424S159100, C424S160100, C435S069100, C435S069700, C435S975000, C530S300000, C530S350000, C530S380000, C530S387300, C530S390100, C536S023100, C536S023400, C536S023530

Reexamination Certificate

active

07115262

ABSTRACT:
This invention relates to bispecific fusion proteins effective in viral neutralization. More specifically, such proteins have two different binding domains, an inducing-binding domain and an induced-binding domain, functionally linked by a peptide linker. Such proteins, nucleic acid molecules encoding them, and their production and use in preventing or treating viral infections are provided. One prototypical bispecific fusion protein is sCD4-SCFv(17b), in which a soluble CD4 fragment (containing domains D1 and D2) is fused to a single chain Fv portion of antibody 17b via a linker.

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