Carboxyl terminal sequences of β-tubulin involved in the interaction of HMW-MAPs. Studies using site-specific antibodies

Carboxyl terminal sequences of β-tubulin involved in the interaction of HMW-MAPs. Studies using site-specific antibodies
复制标题

使用位点特异性抗体研究参与 HMW-MAP 相互作用的 β-微管蛋白的羧基末端序列。

DOI:
--
复制
发表时间:
1994
影响因子:
4.3
通讯作者:
R. Maccioni
R. Maccioni
中科院分区:
生物学3区
文献类型:
--
作者:
D. Cross;G. Farías;J. Domínguez;J. Ávila;R. Maccioni

文献摘要

参考文献

被引文献

相似文献

在发现微管蛋白亚基的C-末端部分参与MAP的相互作用之后,不同的研究集中在不同MAP的结合结构域的子结构上。目前的生物化学证据表明,微管蛋白C-末端结构域保守区域内α和β亚基之间的低同源性序列在AMP-2和tau结合中的作用。另一系列研究表明,高分子量MAP相互作用的位点位于由β-微管蛋白富含谷氨酸的C-末端限定的可变区中。在这里,我们报告了独特型定点抗体的有用性,通过免疫与不同的β-微管蛋白亚型的肽,研究微管蛋白上的MAP-1和MAP-2结合位点。基于位点特异性抗体的这些结果沿着先前的结构信息(Crosset等,1991,Biochemistry 30:4362-4366),我们提出了共有序列的作用,来自不变的β-微管蛋白C-末端结构域在MAP-2的结合中以及来自可变结构域在MAP-1和MAP-2的相互作用中。
After the finding of the involvement of the C-terminal moieties of tubulin subunits in the interaction of MAPs, different studies have focused on the substructure of the binding domains for the different MAPs. Current biochemical evidence point to the role of a low-homology sequence between α and β-subunits within the conserved region of the C-terminal domain of tubulin, in the binding of AMP-2 and tau. Another line of studies indicates that a site for interaction of the high molecular weight MAPs is located in the variable region defined by the glutamic-rich C-terminus of β-tubulin. Here, we report the usefulness of idiotypic site-directed antibodies, produced by immunization with peptides from different β-tubulin isoforms, to study both MAP-1 and MAP-2 binding sites on tubulin. On the basis of these results with site-specific antibodies along with previous structural information (Crosset al. 1991, Biochemistry 30: 4362–4366), we propose the role of consensus sequences, from the invariant β-tubulin C-terminal domain in the binding of MAP-2 and from the variable domain in the interactions of MAP-1 and MAP-2.
抗独特型抗体作为蛋白质活性位点探针:应用于霍乱毒素 B 亚基。
DOI: 10.1073/pnas.84.11.3673
发表时间: 1987
影响因子: 11.1
作者:
Ludwig,DS;Finkelstein,RA;Karu,AE;Dallas,WS;Ashby,ER;Schoolnik,GK
通讯作者: Schoolnik,GK
DOI: 10.1016/s0021-9258(18)32333-0
发表时间: 1983-06
期刊: The Journal of biological chemistry
影响因子: --
作者:
Charles Selden;T. D. Pollard
通讯作者: Charles Selden;T. D. Pollard