申请人:Miles Laboratories, Inc.
公开号:US04486344A1
公开(公告)日:1984-12-04
Immunogen conjugates comprising amino-functionalized haptens coupled through a carbonyl bridge to amino groups in immunogenic proteins and polypeptides. The resulting simple urea linkage in the conjugate is hydrophilic and contributes essentially no haptenic determinants. The immunogen is characterized by a high epitopic density. The method involves reaction of the hapten with a carbonyl diimidazole followed by addition of the protein or polypeptide carrier. Protein crosslinking problems common to prior art coupling methods are avoided.
免疫原共轭物包括通过羰基桥连接到免疫原蛋白质和多肽中的氨基基团的氨基功能半抗原。共轭物中的简单尿素连接是亲水性的,基本上不贡献半抗原决定元。该免疫原的表位密度很高。该方法涉及将半抗原与羰基二咪唑反应,然后加入蛋白质或多肽载体。避免了先前耦合方法中常见的蛋白质交联问题。