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Genetic analysis of monoclonal antibody and HIV binding sites on the human lymphocyte antigen CD4.

作者信息

Peterson A, Seed B

机构信息

Department of Molecular Biology, Massachusetts General Hospital, Boston 02114.

出版信息

Cell. 1988 Jul 1;54(1):65-72. doi: 10.1016/0092-8674(88)90180-8.

DOI:10.1016/0092-8674(88)90180-8
PMID:2454749
Abstract

Saturation mutagenesis and a complement fixation selection have yielded CD4 point mutants with impaired antibody and human immunodeficiency virus binding. The patterns of amino acid substitution, in conjunction with previous antibody cross-blocking data, affirm the similar tertiary structures of the CD4 amino-terminal domain and immunoglobulin variable regions. Single residue substitutions affecting virus binding and syncytium formation are observed over an eight residue segment located in a portion of the molecule homologous to the second hypervariable region of an antibody combining site.

摘要

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