Phosphorylation induces distinct alpha-synuclein strain formation.

Phosphorylation induces distinct alpha-synuclein strain formation.
复制标题

磷酸化诱导独特的α-突触核蛋白菌株形成

DOI:
10.1038/srep37130
复制
发表时间:
2016-11-17
期刊:
影响因子:
4.6
通讯作者:
Li YM
Li YM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Ma MR;Hu ZW;Zhao YF;Chen YX;Li YM

文献摘要

参考文献

被引文献

相似文献

突触核蛋白病是一组与α-突触核蛋白(α-Syn)聚集相关的神经退行性疾病。最近,越来越多的证据表明α-Syn存在不同的结构特征或“菌株”,支持突触核蛋白病与朊病毒疾病共享几个共同特征的概念,并可能解释单个蛋白质如何导致突触核蛋白病中不同的临床表型。在早期的研究中,不同的菌株是通过调节溶液条件、温度或体外重复接种过滤产生的。在此,我们合成了与病理变化高度相关的丝氨酸129位磷酸化的同质α-Syn(pS129 α-Syn),并证明丝氨酸129位磷酸化诱导α-Syn形成与野生型α-Syn相比具有不同结构、繁殖特性和更高细胞毒性的独特菌株。这一结果首次证明了α-Syn的翻译后修饰可以诱导不同的应变形成,为应变形成提供了一种新的机制。
Synucleinopathies are a group of neurodegenerative diseases associated with alpha-synuclein (α-Syn) aggregation. Recently, increasing evidence has demonstrated the existence of different structural characteristics or ‘strains’ of α-Syn, supporting the concept that synucleinopathies share several common features with prion diseases and possibly explaining how a single protein results in different clinical phenotypes within synucleinopathies. In earlier studies, the different strains were generated through the regulation of solution conditions, temperature, or repetitive seeded fibrillization in vitro. Here, we synthesize homogeneous α-Syn phosphorylated at serine 129 (pS129 α-Syn), which is highly associated with the pathological changes, and demonstrate that phosphorylation at Ser129 induces α-Syn to form a distinct strain with different structures, propagation properties, and higher cytotoxicity compared with the wild-type α-Syn. The results are the first demonstration that post-translational modification of α-Syn can induce different strain formation, offering a new mechanism for strain formation.
DOI: 10.1073/pnas.0407146102
发表时间: 2005-02-01
影响因子: 11.1
作者:
Bertoncini, CW;Jung, YS;Zweckstetter, M
通讯作者: Zweckstetter, M
DOI: 10.1021/ja210866j
发表时间: 2012-03-21
影响因子: 15
作者:
Hejjaoui, Mirva;Butterfield, Sara;Fauvet, Bruno;Vercruysse, Filip;Cui, Jia;Dikiy, Igor;Prudent, Michel;Olschewski, Diana;Zhang, Yan;Eliezer, David;Lashuel, Hilal A.
通讯作者: Lashuel, Hilal A.
DOI: 10.1016/j.bbrc.2007.09.048
发表时间: 2007-11-23
影响因子: 3.1
作者:
Sasakawa, Hiroaki;Sakata, Eri;Kato, Koichi
通讯作者: Kato, Koichi
DOI: 10.1172/jci39088
发表时间: 2009-11-01
影响因子: 15.9
作者:
Chen, Li;Periquet, Magali;Feany, Mel B.
通讯作者: Feany, Mel B.
DOI: 10.1038/ncb748
发表时间: 2002-02-01
影响因子: 21.3
作者:
Fujiwara, H;Hasegawa, M;Iwatsubo, T
通讯作者: Iwatsubo, T