Recombinant Biotinylated Cynomolgus CD300A Protein

來(lái)源: 發(fā)布時(shí)間:2024-06-24

PE-labeledHumanHLA-A*02:01&B2M&P53R175H(HMTEVVRHC)TetramerProtein,His-AviTag性能參數(shù)表達(dá)區(qū)間及表達(dá)系統(tǒng)(Source)PE-labeledHumanHLA-A*02:01&B2M&P53R175H(HMTEVVRHC)TetramerProteinisexpressedfromHEK293withHistagandAvitagattheC-Terminus.PE-labeledHumanHLA-A*02:01&B2M&P53R175H(HMTEVVRHC)TetramerisassembledbybiotinylatedmonomerandPE-labeledstreptavidin.ItcontainsGly25-Thr305(HLA-A*02:01),Ile21-Met119(B2M)andHMTEVVRHCpeptide.(Endotoxin)Lessthan1EUperμgbytheLALmethod.制劑(Formulation)Suppliedas0.22μmfilteredsolutionin20mMPB,500mMNaCl,0.2%BSA(pH8.0).儲(chǔ)存條件Theproductshouldbestoredat-85~-65℃for3monthfromdateofreceipt.Recommendtoaliquottheproteinintosmallerquantitieswhenfirstusedandavoidrepeatedfreeze-thawcycles.全長(zhǎng)A2aR蛋白具有天然完整構(gòu)象,VLP(病毒樣顆粒)固有特征可以帶來(lái)更高的免疫原性。Recombinant Biotinylated Cynomolgus CD300A Protein,Avi Tag

Recombinant Biotinylated Cynomolgus CD300A Protein,Avi Tag,標(biāo)準(zhǔn)物質(zhì)

RecombinantBiotinylatedHumanHBV(HLA-A*02:01)Protein,His-AviTag性能參數(shù)表達(dá)區(qū)間及表達(dá)系統(tǒng)(Source)RecombinantBiotinylatedHumanHBV(HLA-A*02:01)ProteinisexpressedfromHEK293withHistagandAvitagattheC-terminalItcontainsGly25-Thr305(HLA-A*02:01),Ile21-Met119(B2M)andFLLTRILTIpeptide.[Accession|A0A140T913(HLA-A*02:01)&P61769(B2M)&FLLTRILTIpeptide]分子量大小(MolecularWeight)TheproteinhasapredictedMWof50.5kDa.Duetoglycosylation,theproteinmigratesto52-62kDabasedonTris-BisPAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.純度(Purity)>95%asdeterminedby>95%asdeterminedbyHPLC制劑(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重構(gòu)方法(Reconstitution)Centrifugetubesbeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.Recombinant Mouse ACE2 Protein,His Tag泛素-蛋白酶體途徑在調(diào)控多種細(xì)胞過(guò)程中的關(guān)鍵作用,靶向這一途徑的藥物開(kāi)發(fā)已成為預(yù)防某些疾病的新策略。

Recombinant Biotinylated Cynomolgus CD300A Protein,Avi Tag,標(biāo)準(zhǔn)物質(zhì)

Trop-2,alsoknownasepithelialglycoprotein-1antigen(EGP-1),isaproteinthatinhumansisencodedbytheTACSTD2gene.Mutationsofthisgeneresultingelatinousdrop-likecornealdystrophy,anautosomalrecessivedisordercharacterizedbyseverecornealamyloidosisleadingtoblindness.產(chǎn)品性質(zhì)別名EGP1;EGP-1;TROP2;GA733-1;gp50;T16;TACSTD2;TROP-2;M1S1;TACD2UniprotNo.P09758表達(dá)區(qū)間及表達(dá)系統(tǒng)RecombinantBiotinylatedHumanTROP-2/TACSTD2ProteinisexpressedfromHEK293cellswithHistagandAvitagattheC-terminal.ItcontainsHis27-Thr274.分子量TheproteinhasapredictedMWof30.5kDa.Duetoglycosylation,theproteinmigratesto46-55kDabasedonTris-BisPAGEresult.純度>95%asdeterminedbySDS-PAGEandHPLC活性ELISAData:ImmobilizedAnti-TROP-2Antibody,hFcTagat0.5μg/mL(100μL/well)ontheplate.DoseresponsecurveforBiotinylatedHumanTROP-2,HisTagwiththeEC50of24.1ng/mLdeterminedbyELISA.0EUper1μgoftheproteinbytheLALmethod.制劑Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally5%trehaloseisaddedasprotectantbeforelyophilization.

CD40,alsoknownasTNFRSF5,isa45-50kDatypeItransmembraneglycoproteinmemberoftheTNFreceptorsuperfamily.MaturehumanCD40consistsofa173aminoacid(aa)extracellulardomain,atransmembranedomain,anda62aacytoplasmicdomain.CD40servesmultiplefunctionsinbothhematopoieticandepithelialcancersandisatargetfortumorimmunotherapy.DysregulationofCD40/CD40LigandexpressionandinteractionscontributestotheimmunedeficiencyassociatedwithHIVinfectionandAIDS.Itisalsoimplicatedinthepathologyofmultiplecardiovasculardiseasesincludingatherosclerosis,atherothrombosis,andrestenosis.產(chǎn)品性質(zhì)別名CD40;CD40Lreceptor;TNFRSF5;CD40antigen;CD40molecule;CDw40;MGC9013;UniprotNo.P25942表達(dá)區(qū)間及表達(dá)系統(tǒng)RecombinantBiotinylatedHumanCD40/TNFRSF5ProteinisexpressedfromHEK293CellswithHistagandAvitagattheC-terminal.ItcontainsGlu21-Arg193.分子量Approximately22.1kDa.Duetoglycosylation,theproteinmigratesto35-40kDabasedonTris-BisPAGEresult.純度>95%asdeterminedbySDS-PAGEandHPLC.活性α-凝血酶是研究血液凝固機(jī)制和血栓性疾病發(fā)展的主要靶點(diǎn)。重組α-凝血酶用于體外測(cè)定。

Recombinant Biotinylated Cynomolgus CD300A Protein,Avi Tag,標(biāo)準(zhǔn)物質(zhì)

泛素化是通過(guò)三個(gè)酶促步驟實(shí)現(xiàn)的。在ATP依賴的過(guò)程中,泛素酶(E1)催化與泛素形成活性硫酯鍵,然后轉(zhuǎn)移到泛素載體蛋白的活性位點(diǎn)半胱氨酸(E2)。泛素級(jí)聯(lián)對(duì)特定底物蛋白的選擇性依賴于E2結(jié)合酶(細(xì)胞中包含的相對(duì)較少)和泛素-蛋白連接酶(E3)之間的相互作用,迄今為止已經(jīng)鑒定出600多種這種酶。E3s是一個(gè)大的,多樣化的蛋白質(zhì)組,其特征是幾個(gè)確定的基序之一。這些包括HECT(與e6相關(guān)蛋白c端同源),RING(真正有趣的新基因)或U-box(沒(méi)有Zn2+結(jié)合配體的完整補(bǔ)充的修飾的RING基序)結(jié)構(gòu)域。而HECTE3s在泛素化過(guò)程中具有直接的催化作用,RING和U-boxE3s促進(jìn)蛋白質(zhì)泛素化。后兩種E3類型充當(dāng)適配器類分子。它們使E2和底物足夠接近,從而促進(jìn)底物的泛素化。雖然許多RING-typee3,如MDM2和c-Cbl,可以單獨(dú)發(fā)揮作用,但其他一些是作為更大的多蛋白復(fù)合體的組成部分,如后期促進(jìn)復(fù)合體。綜上所述,這些多面的特性和相互作用使E3s能夠利用泛素-蛋白酶體系統(tǒng),在真核生物的所有細(xì)胞中提供一種強(qiáng)大而具體的蛋白質(zhì)機(jī)制。該篩選了11種常用E2結(jié)合酶,可以篩選具有E3連接酶活性的蛋白所匹配的E2酶.在蛋白質(zhì)表達(dá)體系中,腸激酶常用于切割融合標(biāo)簽,從而釋放出目的蛋白,特別是在pET表達(dá)系統(tǒng)中。Recombinant Human NKG2A/CD159a Protein,His-Avi Tag

泛素化是一個(gè)可逆的過(guò)程,存在去泛素化酶可以去除泛素分子,從而調(diào)節(jié)泛素化的水平和功能。Recombinant Biotinylated Cynomolgus CD300A Protein,Avi Tag

基因工程與抗體技術(shù)通過(guò)基因工程方法,可以構(gòu)建重組3C蛋白酶,并利用其切割特異性進(jìn)行活性驗(yàn)證。此外,通過(guò)動(dòng)物實(shí)驗(yàn)獲得3C蛋白酶抗體,可以探索利用抗體技術(shù)抑制3C蛋白酶活性,進(jìn)而達(dá)到抑制病毒復(fù)制的目的4。研究進(jìn)展與挑戰(zhàn)3C蛋白酶及其抑制劑的研究進(jìn)展迅速,但仍面臨挑戰(zhàn)。例如,需要深入了解不同耐藥突變對(duì)3CLpro自身活性的影響,以及不同抑制劑之間的交叉耐藥風(fēng)險(xiǎn)。這些研究對(duì)于開(kāi)發(fā)新的廣譜抗病毒藥物具有重要意義38。結(jié)論3C蛋白酶是一類在RNA病毒復(fù)制中發(fā)揮關(guān)鍵作用的酶,是抗病毒藥物開(kāi)發(fā)的重要靶點(diǎn)。深入研究3C蛋白酶的結(jié)構(gòu)、功能以及耐藥機(jī)制,對(duì)于開(kāi)發(fā)有效的抗病毒藥物和方法具有重要意義。隨著科學(xué)技術(shù)的不斷進(jìn)步,3C蛋白酶的研究將為人類戰(zhàn)勝病毒性疾病提供更多的科學(xué)依據(jù)策略。Recombinant Biotinylated Cynomolgus CD300A Protein,Avi Tag