A sinfilina-1 (SYPH1ou Sph1) é unha proteína que nos humanos está codificada polo xeneSNCAIP situado no cromosoma 5.[1][2]SNCAIP son as siglas en inglés de "synuclein alpha interacting protein" (proteína interaccionante coa alfa-sinucleína[3]) e tamén se denomina SNCAP_HUMAN, synphilin 1, synuclein, alpha interacting protein (synphilin).
O xene SNCAIP proporciona instrucións para sintetizar unha proteína chamada sinfilina-1 e unha versión lixeiramente diferente desta proteína chamada sinfilina-1A. Estas proteínas prodúcense no cerebro. Localízanse normalmente en estruturas especializadas chamadas terminais presinápticas, que se encontran nos extremos (axóns) das células nerviosas. Nas células nerviosas a sinfilina-1 e a sinfilina-1A interaccionan con outra proteína chamada alfa-sinucleína. Porén, as funcións da sinfilina-1 e a sinfilina-1A son polo momento descoñecidas.
↑Neystat M, Rzhetskaya M, Kholodilov N, Burke RE (June 2002). "Analysis of synphilin-1 and synuclein interactions by yeast two-hybrid beta-galactosidase liquid assay". Neurosci. Lett.325 (2): 119–23. PMID12044636. doi:10.1016/s0304-3940(02)00253-7.
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↑Chung KK, Zhang Y, Lim KL, Tanaka Y, Huang H, Gao J, Ross CA, Dawson VL, Dawson TM (October 2001). "Parkin ubiquitinates the alpha-synuclein-interacting protein, synphilin-1: implications for Lewy-body formation in Parkinson disease". Nat. Med.7 (10): 1144–50. PMID11590439. doi:10.1038/nm1001-1144.
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