The beta amyloid peptide can act as a modular aggregation domain.

The beta amyloid peptide can act as a modular aggregation domain.
复制标题

DOI:
10.1016/j.nbd.2008.08.003
复制
发表时间:
2008-12
影响因子:
6.1
通讯作者:
Stein GH
Stein GH
中科院分区:
医学1区
文献类型:
--
作者:
Link CD;Fonte V;Roberts CM;Hiester B;Silverman MA;Stein GH

文献摘要

参考文献

相似文献

虽然有令人信服的证据表明β淀粉样肽(Aβ)可以集中参与阿尔茨海默病,这种肽的天然作用(如果有的话)仍然不清楚。在这里,我们使用绿色荧光蛋白(GFP)融合来证明,Aβ序列,像朊病毒结构域,可以作为一个模块化的聚集结构域时,终端附加到一个正常的可溶性蛋白。我们发现β肽序列中的单个氨基酸取代(Leu 17至Pro)可以消除这种诱导聚集的顺式能力。将该取代引入全长APP(即,APP 695中的Leu 613 Pro取代)改变APP的加工,导致C99 C-末端片段(CTF)的积累。我们认为,在至少一些聚集疾病相关的蛋白质的聚集域的存在不是“偶然的”,但反映了这些域在调节运输或代谢的亲本蛋白质的选定的作用。
Although there is compelling evidence that the β amyloid peptide (Aβ) can be centrally involved in Alzheimer’s disease, the natural role (if any) of this peptide remains unclear. Here we use green fluorescent protein (GFP) fusions to demonstrate that the Aβ sequence, like prion domains, can act as a modular aggregation domain when terminally appended to a normally soluble protein. We find that a single amino acid substitution (Leu17 to Pro) in the β peptide sequence can abolish this cis capacity to induce aggregation. Introduction of this substitution into full-length APP (i.e., a Leu613Pro substitution in APP695) alters the processing of APP leading to the accumulation of the C99 C-terminal fragment (CTF). We suggest that in at least some aggregation disease-related proteins the presence of an aggregation domain is not “accidental”, but reflects a selected role of these domains in modulating the trafficking or metabolism of the parental protein.
DOI: 10.1016/s0896-6273(03)00124-7
发表时间: 2003-03-27
期刊: NEURON
影响因子: 16.2
作者:
Kamenetz, F;Tomita, T;Malinow, R
通讯作者: Malinow, R
DOI: 10.1016/s0197-4580(00)00237-2
发表时间: 2001-03-01
影响因子: 4.2
作者:
Link, CD;Johnson, CJ;Klunk, WE
通讯作者: Klunk, WE
DOI: 10.1016/j.febslet.2004.06.034
发表时间: 2004-07-16
期刊: FEBS LETTERS
影响因子: 3.5
作者:
Kametani, F
通讯作者: Kametani, F
DOI: 10.1074/jbc.m702739200
发表时间: 2007-11-30
影响因子: 4.8
作者:
Ren, Zhao;Schenk, Dale;Shapiro, I. Paul
通讯作者: Shapiro, I. Paul
DOI: 10.1073/pnas.072033799
发表时间: 2002-04-02
影响因子: 11.1
作者:
Leissring, MA;Murphy, MP;LaFerla, FM
通讯作者: LaFerla, FM