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Characterization of C. elegans RING finger protein 1, a binding partner of ubiquitin-conjugating enzyme 1

机译:秀丽隐杆线虫无名指蛋白1(泛素结合酶1的结合伴侣)的表征

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Inayeasttwo-hybridscreen,RINGfingerprotein1(RFP-1)andUBR1wereidentifiedaspotentialbindingpartnersofemC.elegans/emUBC-1,aubiquitin-conjugatingenzymewithahighdegreeofidentitytoemS.cerevisiae/emUBC2/RAD6.TheinteractionofRFP-1andUBC-1wasconfirmedbyco-immunoprecipitationexperiments.YeastinteractiontrapexperimentsmappedtheregionofinteractiontothebasicN-terminal313residuesofRFP-1.Theacidiccarboxy-terminalextensionofUBC-1wasnotrequiredfortheinteractionwithRFP-1.WesternblotanalysisandindirectimmunohistochemicalstainingshowthatRFP-1ispresentinembryos,larvae,andadults,whereitisfoundinintestinal,nervering,pharyngeal,gonadal,andoocytecellnuclei.Double-strandedRNAinterferenceexperimentsagainstemrfp-1/emindicatethatthisgeneisrequiredforL1development,vulvaldevelopment,andforegglaying.Bycontrast,RNAinterferenceagainstemubc-1/emgavenoobviousphenotype,suggestingthatemubc-1/emisnonessentialorisfunctionallyredundant./p/div
机译:在两次双杂交筛选中,鉴定了环状指蛋白1(RFP-1)和UBR1作为秀丽隐杆线虫UBC-1,与泛素结合酶具有高度同源性的潜在结合伴侣,它们与酿酒酵母 UBC2 / RAD6具有高度的同源性。 YeastinteractiontrapexperimentsmappedtheregionofinteractiontothebasicN-terminal313residuesofRFP-1.Theacidiccarboxy-terminalextensionofUBC-1wasnotrequiredfortheinteractionwithRFP-1.WesternblotanalysisandindirectimmunohistochemicalstainingshowthatRFP-1ispresentinembryos,幼虫,andadults,whereitisfoundinintestinal,nervering,咽,性腺,andoocytecellnuclei.Double-strandedRNAinterferenceexperimentsagainst RFP-1 indicatethatthisgeneisrequiredforL1development,vulvaldevelopment,andforegglaying 。相反,RNA干扰 ubc-1 gavenoo明显表型,暗示 ubc-1 在功能上是多余的。

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