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1.
Dev Neurobiol ; 7: 145-156, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-24817923
3.
Nat Neurosci ; 2(5): 434-9, 1999 May.
Artigo em Inglês | MEDLINE | ID: mdl-10321247

RESUMO

Septins are GTPases required for the completion of cytokinesis in diverse organisms, yet their roles in cytokinesis or other cellular processes remain unknown. Here we describe studies of a newly identified septin, CDCrel-1, which is predominantly expressed in the nervous system. This protein was associated with membrane fractions, and a significant fraction of the protein copurified and coprecipitated with synaptic vesicles. In detergent extracts, CDCrel-1 and another septin, Nedd5, immunoprecipitated with the SNARE protein syntaxin by directly binding to syntaxin via the SNARE interaction domain. Transfection of HIT-T15 cells with wild-type CDCrel-1 inhibited secretion, whereas GTPase dominant-negative mutants enhanced secretion. These data suggest that septins may regulate vesicle dynamics through interactions with syntaxin.


Assuntos
Exocitose/fisiologia , GTP Fosfo-Hidrolases/metabolismo , Proteínas de Membrana/metabolismo , Proteínas do Tecido Nervoso/metabolismo , Animais , Membrana Celular/metabolismo , Proteínas do Citoesqueleto/metabolismo , Biblioteca Gênica , Humanos , Hibridomas , Imuno-Histoquímica , Células PC12 , Ligação Proteica , Proteínas Qa-SNARE , Ratos , Transfecção
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