Cloned genes encoding IG-CD4 fusion proteins and the use thereof

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...

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4352523, 4353201, 530350, 536 234, C07K 1900, C12N 1562

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active

061176567

ABSTRACT:
The invention relates to a fusion protein which comprises an immunoglobulin of the IgM, IgG1 or IgG3 immunoglobulin class, wherein the variable region of the light or heavy chain has been replaced with CD4 or fragment thereof which is capable of binding to gp120. The invention also relates to an immunoglobulin-like molecule comprising the fusion protein of the invention together with an immunoglobulin light or heavy chain. The invention also relates to a method of treating HIV or SIV infection comprising administering the fusion proteins or immunoglobulin-like molecules of the invention to an animal. The invention also relates to assays for HIV or SIV comprising contacting a sample suspected of containing HIV or SIV gp120 with the immunoglobulin-like molecule of fusion protein of the invention, and detecting whether a complex is formed.

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