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来自新西兰黑鼠(NZB)和BALB/c小鼠的骨髓瘤蛋白:结构与功能差异

Myeloma proteins from NZB and BALB/c mice: structural and functional differences.

作者信息

Loh E, Black B, Riblet R, Weigert M, Hood J M, Hood L

出版信息

Proc Natl Acad Sci U S A. 1979 Mar;76(3):1395-9. doi: 10.1073/pnas.76.3.1395.

Abstract

Structural and functional analyses of myeloma immunoglobulins from inbred BALB/c mice and humans have provided important insights into the structure of the antibody molecule and the expression and evolution of antibody genes. One important question concerning these analyses is whether the myeloma process selects, in a nonrandom manner, the lymphocytes to be transformed. The availability of myeloma tumors in a second inbred strain of mouse, NZB, permits us to approach this question. In this respect. the NH2-terminal amino acid sequences of 27 kappa light chains as well as data relating to the antigen-binding properties and immunoglobulin class distribution of NZB myeloma proteins are presented and compared with similar data from the BALB/c mouse. These studies suggest that the myeloma proteins from the BALB/c and NZB mice constitute two populations of immunoglobulins with distinct functional and structural properties. The implication of this observation are discussed.

摘要

对近交系BALB/c小鼠和人类骨髓瘤免疫球蛋白的结构与功能分析,为深入了解抗体分子的结构以及抗体基因的表达与进化提供了重要见解。关于这些分析的一个重要问题是,骨髓瘤形成过程是否以非随机方式选择要转化的淋巴细胞。在第二种近交系小鼠NZB中存在骨髓瘤肿瘤,这使我们能够探讨这个问题。在这方面,本文给出了27种κ轻链的氨基末端氨基酸序列,以及与NZB骨髓瘤蛋白的抗原结合特性和免疫球蛋白类别分布相关的数据,并与来自BALB/c小鼠的类似数据进行了比较。这些研究表明,来自BALB/c和NZB小鼠的骨髓瘤蛋白构成了具有不同功能和结构特性的两类免疫球蛋白。本文讨论了这一观察结果的意义。

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