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.
Krüger R (2005). "The role of synphilin-1 in synaptic function and protein degradation". Cell Tissue Res.318 (1): 195–9. PMID15322916. doi:10.1007/s00441-004-0953-z.
Engelender S, Wanner T, Kleiderlein JJ, Wakabayashi K, Tsuji S, Takahashi H, Ashworth R, Margolis RL, Ross CA (2000). "Organization of the human synphilin-1 gene, a candidate for Parkinson's disease". Mamm. Genome11 (9): 763–6. PMID10967135. doi:10.1007/s003350010123.
Kawamata H, McLean PJ, Sharma N, Hyman BT (2001). "Interaction of alpha-synuclein and synphilin-1: effect of Parkinson's disease-associated mutations". J. Neurochem.77 (3): 929–34. PMID11331421. doi:10.1046/j.1471-4159.2001.00301.x.
Chung KK, Zhang Y, Lim KL, Tanaka Y, Huang H, Gao J, Ross CA, Dawson VL, Dawson TM (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.
Ribeiro CS, Carneiro K, Ross CA, Menezes JR, Engelender S (2002). "Synphilin-1 is developmentally localized to synaptic terminals, and its association with synaptic vesicles is modulated by alpha-synuclein". J. Biol. Chem.277 (26): 23927–33. PMID11956199. doi:10.1074/jbc.M201115200.
Neystat M, Rzhetskaya M, Kholodilov N, Burke RE (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.
Junn E, Lee SS, Suhr UT, Mouradian MM (2003). "Parkin accumulation in aggresomes due to proteasome impairment". J. Biol. Chem.277 (49): 47870–7. PMID12364339. doi:10.1074/jbc.M203159200.
Ihara M, Tomimoto H, Kitayama H, Morioka Y, Akiguchi I, Shibasaki H, Noda M, Kinoshita M (2003). "Association of the cytoskeletal GTP-binding protein Sept4/H5 with cytoplasmic inclusions found in Parkinson's disease and other synucleinopathies". J. Biol. Chem.278 (26): 24095–102. PMID12695511. doi:10.1074/jbc.M301352200.
Ito T, Niwa J, Hishikawa N, Ishigaki S, Doyu M, Sobue G (2003). "Dorfin localizes to Lewy bodies and ubiquitylates synphilin-1". J. Biol. Chem.278 (31): 29106–14. PMID12750386. doi:10.1074/jbc.M302763200.
Marx FP, Holzmann C, Strauss KM, Li L, Eberhardt O, Gerhardt E, Cookson MR, Hernandez D, Farrer MJ, Kachergus J, Engelender S, Ross CA, Berger K, Schöls L, Schulz JB, Riess O, Krüger R (2004). "Identification and functional characterization of a novel R621C mutation in the synphilin-1 gene in Parkinson's disease". Hum. Mol. Genet.12 (11): 1223–31. PMID12761037. doi:10.1093/hmg/ddg134.
Scherzer CR, Jensen RV, Gullans SR, Feany MB (2004). "Gene expression changes presage neurodegeneration in a Drosophila model of Parkinson's disease". Hum. Mol. Genet.12 (19): 2457–66. PMID12915459. doi:10.1093/hmg/ddg265.
Nagano Y, Yamashita H, Takahashi T, Kishida S, Nakamura T, Iseki E, Hattori N, Mizuno Y, Kikuchi A, Matsumoto M (2004). "Siah-1 facilitates ubiquitination and degradation of synphilin-1". J. Biol. Chem.278 (51): 51504–14. PMID14506261. doi:10.1074/jbc.M306347200.
Tanaka M, Kim YM, Lee G, Junn E, Iwatsubo T, Mouradian MM (2004). "Aggresomes formed by alpha-synuclein and synphilin-1 are cytoprotective". J. Biol. Chem.279 (6): 4625–31. PMID14627698. doi:10.1074/jbc.M310994200.