.beta.-Lactoglobulin modified with aromatic anhydride compound f

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

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4241571, 574 12, 574 21, 530394, 530402, A61K 3520

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059852755

ABSTRACT:
A composition is provided which comprises a protein or peptide containing lysines, wherein at least one of the lysines and/or the N-terminal amino group of the protein or peptide, such as casein, .beta.-lactoglobulin, powdered milk or whey, is modified by contact with an aromatic acid anhydride compound, such as trimellitic anhydride, trimellitic anhydride chloride or 3-hydroxyphthalic anhydride. Additionally a composition is provided wherein a protein or peptide containing arginines is modified by an arginine modifying agent containing at least one carboxyl group, such as p-carboxyphenylglyoxal. The compositions are capable of binding to CD4 cell receptors, such as the HIV-1 or HIV-2 binding site on CD4 cell receptors. The compositions are thus useful for the prevention of HIV-1 or HIV-2 infection, especially by local administration.

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