Crystal structure of the Tspan15 LEL domain reveals a conserved ADAM10 binding site.

Crystal structure of the Tspan15 LEL domain reveals a conserved ADAM10 binding site.
复制标题

DOI:
10.1016/j.str.2021.10.007
复制
发表时间:
2022-02-03
期刊:
Structure (London, England : 1993)
影响因子:
--
通讯作者:
Blacklow SC
Blacklow SC
中科院分区:
其他
文献类型:
--
作者:
Lipper CH;Gabriel KH;Seegar TCM;Dürr KL;Tomlinson MG;Blacklow SC

文献摘要

参考文献

被引文献

相似文献

四跨膜蛋白是四次跨膜蛋白,其通过调节伴侣蛋白的运输和在膜中组织信号复合物来发挥功能。Tspan 15是TspanC 8亚家族的六个成员之一,形成调节跨膜蛋白酶ADAM 10的运输、成熟和底物选择性的复合物,ADAM 10是哺乳动物生理学中的必需酶,其切割各种膜锚定底物,包括Notch受体、淀粉样前体蛋白、钙粘蛋白和生长因子。我们在这里提出的Tspan 15大细胞外环(LEL)的晶体结构所需的功能协会与ADAM 10在隔离和复合物与Fab片段的抗Tspan 15抗体。Tspan 15 LEL与其他四跨膜蛋白LEL结构的比较表明,核心螺旋框架支持LEL之间结构分歧的可变区。使用免疫共沉淀和细胞N-钙粘蛋白裂解试验,我们确定了一个网站Tspan 15所需的ADAM 10结合和促进底物裂解。Tspan 15是调节必需的跨膜蛋白酶ADAM 10的四跨膜蛋白的TspanC 8亚家族的成员。Lipper等报道了Tspan 15的胞外结构域的晶体结构,其为分离的以及与Fab片段复合的。他们使用基于细胞的测定来鉴定保守的ADAM 10结合位点。
Tetraspanins are four-pass transmembrane proteins that function by regulating trafficking of partner proteins and organizing signaling complexes in the membrane. Tspan15, one of a six-member TspanC8 subfamily, forms a complex that regulates the trafficking, maturation and substrate selectivity of the transmembrane protease ADAM10, an essential enzyme in mammalian physiology that cleaves a wide variety of membrane-anchored substrates including Notch receptors, amyloid precursor protein, cadherins and growth factors. We present here crystal structures of the Tspan15 large extracellular loop (LEL) required for functional association with ADAM10 both in isolation and in complex with the Fab fragment of an anti-Tspan15 antibody. Comparison of the Tspan15 LEL with other tetraspanin LEL structures shows that a core helical framework buttresses a variable region that structurally diverges among LELs. Using co-immunoprecipitation and a cellular N-cadherin cleavage assay, we identify a site on Tspan15 required for both ADAM10 binding and promoting substrate cleavage. Tspan15 is a member of the TspanC8 subfamily of tetraspanins that regulate the essential transmembrane protease ADAM10. Lipper, et al. report crystal structures of the extracellular domain of Tspan15 both in isolation and in complex with a Fab fragment. They use cell-based assays to identify a conserved ADAM10 binding site.
DOI: 10.1007/s00018-015-2111-z
发表时间: 2016-05
期刊: Cellular and molecular life sciences : CMLS
影响因子: --
作者:
Jouannet S;Saint-Pol J;Fernandez L;Nguyen V;Charrin S;Boucheix C;Brou C;Milhiet PE;Rubinstein E
通讯作者: Rubinstein E
DOI: 10.1073/pnas.0500918102
发表时间: 2005-06-28
影响因子: 11.1
作者:
Maretzky, T;Reiss, K;Saftig, P
通讯作者: Saftig, P
DOI: 10.1107/s0907444904019158
发表时间: 2004-12-01
影响因子: 2.2
作者:
Emsley, P;Cowtan, K
通讯作者: Cowtan, K
DOI: 10.1038/nprot.2013.143
发表时间: 2013-11-01
期刊: NATURE PROTOCOLS
影响因子: 14.8
作者:
Ran, F. Ann;Hsu, Patrick D.;Zhang, Feng
通讯作者: Zhang, Feng
DOI: 10.7554/elife.01456
发表时间: 2013-09-10
期刊: eLife
影响因子: 7.7
作者:
Morin A;Eisenbraun B;Key J;Sanschagrin PC;Timony MA;Ottaviano M;Sliz P
通讯作者: Sliz P