The B‐Cell Antigen Receptor: Structure and Function of Primary, Secondary, Tertiary and Quaternary Components

The B‐Cell Antigen Receptor: Structure and Function of Primary, Secondary, Tertiary and Quaternary Components
复制标题

B 细胞抗原受体:一级、二级、三级和四级成分的结构和功能

DOI:
--
复制
发表时间:
1993
影响因子:
8.7
通讯作者:
M. Clark
M. Clark
中科院分区:
医学1区
文献类型:
--
作者:
J. Cambier;W. Bedzyk;K. Campbell;N. Chien;J. Friedrich;Anne Harwood;W. Jensen;C. Pleiman;M. Clark

文献摘要

参考文献

被引文献

相似文献

B淋巴细胞通过膜结合免疫球蛋白分子(mlg)感知其环境中的抗原。膜免疫球蛋白与由分化的子细胞分泌的免疫球蛋白具有广泛的结构同源性。它们的不同之处在于mlg具有C末端间隔区和连接的跨膜和胞质结构域(后者对于mIgM和mIgD仅为3个氨基酸)。尽管mlg的胞质结构有限,但它的交联可启动细胞骨架的锚定、受体的内吞、抗原的加工和呈递以及细胞的增殖和分化。直到最近,人们还不清楚mlg的短胞质尾区如何与这些功能所必需的多个胞质效应物相互作用。然而,过去三年进行的研究极大地增进了我们对这一过程的理解。显然,在其静息状态下,抗原受体是由抗原识别亚结构mlg、非共价缔合的换能器亚结构lg-a/-?/->;和各种细胞质效应酶,例如src家族酪氨酸激酶林恩。最后是一些
B lymphocytes perceive antigen in their environment by virtue of membraneassociated immunoglobulin molecules (mlg). Membrane immunoglobulins have extensive structural homology to immunoglobulins which are secreted by differentiated daughter cells. They differ in that mlg possess a C-terminal spacer and attached transmembrane and cytoplasmic domains (the latter is only 3 amino acids for mIgM and mIgD). In spite of their limited cytoplasmic structure, mlg crosslinking initiates cytoskeletal anchorage, receptor endocytosis, antigen processing and presentation, and cell proliferation and differentiation. Until recently, it was unclear how the short cytoplasmic tail of mlg could interact with the multiple cytoplasmic effectors necessary for these functions. However, studies conducted over the past three years have enormously advanced our understanding of this process. It is clear that, in its resting state, the antigen receptor is an extended complex composed of the antigen recognition substructure, mlg, a noncovalently-associated transducer substructure, lg-a/-/?/->; and various cytoplasmic effector enzymes, e.g. the src-family tyrosine kinase Lyn. Finally, some
DOI: --
发表时间: 1984
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Coggeshall,KM;Cambier,JC
通讯作者: Cambier,JC
膜 Ig 的连接导致原癌基因产物 Ets-1 的钙介导磷酸化。
DOI: --
发表时间: 1991
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Fisher,CL;Ghysdael,J;Cambier,JC
通讯作者: Cambier,JC
c-fos 表达的上调是 mIg 信号转导机制的一个组成部分,但并不表示增殖能力。
DOI: --
发表时间: 1988
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Monroe,JG
通讯作者: Monroe,JG
人前 B 细胞和 B 细胞膜 mu 链与含有 B29 基因产物的二硫键连接复合物非共价连接。
DOI: --
发表时间: 1992
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Clark,MR;Friedrich,RJ;Campbell,KS;Cambier,JC
通讯作者: Cambier,JC
膜 Ig 交联调节 B 淋巴细胞中的磷脂酰肌醇 3-激酶。
DOI: --
发表时间: 1992
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Gold,MR;Chan,VW;Turck,CW;DeFranco,AL
通讯作者: DeFranco,AL