Mutations in synaptojanin disrupt synaptic vesicle recycling.

Mutations in synaptojanin disrupt synaptic vesicle recycling.
复制标题

DOI:
10.1083/jcb.150.3.589
复制
发表时间:
2000-08-07
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Jorgensen EM
Jorgensen EM
中科院分区:
其他
文献类型:
--
作者:
Harris TW;Hartwieg E;Horvitz HR;Jorgensen EM

文献摘要

参考文献

被引文献

相似文献

突触素是一种多磷肌醇磷酸酶,存在于突触上,与内吞作用相关的蛋白质结合。因此,突触素被认为参与了突触小泡的再循环。在这里,我们证明了UNC-26基因编码秀丽线虫突触素的同源基因。UNC-26突变体在几个组织中的囊泡运输方面存在缺陷,但大多数缺陷发生在突触末端。具体地说,我们观察到在突触小泡从质膜上萌发,在分裂后小泡的脱壳,从内小体中恢复小泡,以及在小泡与细胞骨架的捆绑方面存在缺陷。因此,这些结果证实了对小鼠突触蛋白1突变体的研究,这些突变体在突触小泡的去涂层方面表现出缺陷(Cremona,O.,G.Di Paolo,M.R.温克,A.Luthi,W.T.Kim,K.Takei,L.Daniell,Y.Nemoto,S.B.Shears,R.A.Flavell,D.A.McCormick和P.de Camilli)。1999年。牢房。99:179-188),并进一步证明突触素促进突触小泡循环的多个步骤。
Synaptojanin is a polyphosphoinositide phosphatase that is found at synapses and binds to proteins implicated in endocytosis. For these reasons, it has been proposed that synaptojanin is involved in the recycling of synaptic vesicles. Here, we demonstrate that the unc-26 gene encodes the Caenorhabditis elegans ortholog of synaptojanin. unc-26 mutants exhibit defects in vesicle trafficking in several tissues, but most defects are found at synaptic termini. Specifically, we observed defects in the budding of synaptic vesicles from the plasma membrane, in the uncoating of vesicles after fission, in the recovery of vesicles from endosomes, and in the tethering of vesicles to the cytoskeleton. Thus, these results confirm studies of the mouse synaptojanin 1 mutants, which exhibit defects in the uncoating of synaptic vesicles (Cremona, O., G. Di Paolo, M.R. Wenk, A. Luthi, W.T. Kim, K. Takei, L. Daniell, Y. Nemoto, S.B. Shears, R.A. Flavell, D.A. McCormick, and P. De Camilli. 1999. Cell. 99:179–188), and further demonstrate that synaptojanin facilitates multiple steps of synaptic vesicle recycling.
DOI: 10.1038/378196a0
发表时间: 1995-11-09
期刊: NATURE
影响因子: 64.8
作者:
JORGENSEN, EM;HARTWIEG, E;HORVITZ, HR
通讯作者: HORVITZ, HR
DOI: 10.1074/jbc.271.20.11676
发表时间: 1996-05-17
影响因子: 4.8
作者:
Communi, D;Lecocq, R;Erneux, C
通讯作者: Erneux, C
DOI: 10.1021/bi9602627
发表时间: 1996-06-18
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
Jefferson, AB;Majerus, PW
通讯作者: Majerus, PW
DOI: 10.1074/jbc.272.43.27239
发表时间: 1997-10-24
影响因子: 4.8
作者:
Micheva, KD;Kay, BK;McPherson, PS
通讯作者: McPherson, PS
DOI: 10.1083/jcb.98.2.685
发表时间: 1984-01-01
影响因子: 7.8
作者:
MILLER, TM;HEUSER, JE
通讯作者: HEUSER, JE