An ICAM-related neuronal glycoprotein, telencephalin, with brain segment-specific expression

An ICAM-related neuronal glycoprotein, telencephalin, with brain segment-specific expression
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一种与 ICAM 相关的神经元糖蛋白,端脑蛋白,具有脑节段特异性表达

DOI:
10.1016/0896-6273(94)90211-9
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发表时间:
1994
期刊:
影响因子:
16.2
通讯作者:
K. Mori
K. Mori
中科院分区:
医学1区
文献类型:
--
作者:
Y. Yoshihara;S. Oka;Y. Nemoto;Yasuyoshi Watanabe;S. Nagata;H. Kagamiyama;K. Mori

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端脑蛋白(Telencephalin,TLN)是一种分子量为130 kd的糖蛋白,主要表达于端脑的神经元中。在神经元中,TLN定位于胞体-树突膜,而不定位于轴突膜。在这项研究中,我们克隆了编码兔和小鼠TLN的cDNA。TLN的c DNA衍生的一级结构预测了一个完整的膜蛋白,在胞外区具有9个串联免疫球蛋白样结构域,一个跨膜结构域和一个短的胞质尾区。TLN的远端8个免疫球蛋白样结构域与细胞间粘附分子(ICAM)1、2和3/R的免疫球蛋白样结构域具有最高的同源性。TLN与ICAM的结构相似性为神经和免疫系统中的免疫球蛋白超家族分子之间提供了新的和强有力的联系。TLN是树突相关细胞粘附分子的一个例子,其参与脑的节段组织、树突发育期间的细胞-细胞相互作用以及功能性神经元网络的维持。
Telencephalin (TLN) is a 130 kd glycoprotein expressed exclusively in neurons of the telencephalon, the most rostral brain segment. In the neurons, TLN is localized to soma-dendritic membrane but not to axonal membrane. In this study, we have cloned cDNA encoding rabbit and mouse TLN. The c DNA-derived primary structure of TLN predicts an integral membrane protein with nine tandem immunoglobulin-like domains in an extracellular region, a transmembrane domain, and a short cytoplasmic tail. The distal eight immunoglobulin-like domains of TLN show highest homology with the immunoglobulin-like domains of intercellular adhesion molecules (ICAMs) 1, 2, and 3/R. The structural similarity of TLN with ICAMs provides a new and strong link between immunoglobulin superfamily molecules in the nervous and immune systems. TLN is an example of a dendriteassociated cell adhesion molecule involved in the brain's segmental organization, cell-cell interactions during dendritic development, and maintenance of functional neuronal networks.
小鼠 ICAM-2 互补 DNA 和基因组 DNA 的分离、表征和表达。
DOI: --
发表时间: 1992
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Xu,H;Tong,IL;DeFougerolles,AR;Springer,TA
通讯作者: Springer,TA