Coronavirusesarecommonlycomprisedoffourstructuralproteins:Spikeprotein(S),Envelopeprotein(E),Membraneprotein(M)andNucleocapsidprotein(N).TheSARS-CoV-2Sproteinisaglycoproteinthatmediatesmembranefusionandviralentry.TheSproteinishomotrimeric,witheach~180-kDamonomerconsistingoftwosubunits,S1andS2.TheRBDofSARS-CoV-2bindsametallopeptidase,angiotensin-convertingenzyme2(ACE-2).產(chǎn)品性質(zhì)別名SproteinRBD;SglycoproteinRBD;SpikeproteinRBDAccessionQHD43416.1表達(dá)區(qū)間及表達(dá)系統(tǒng)RecombinantSARS-CoV-2SpikeRBD(OmicronBA.4/BA.5/BA.5.1.3/BA.5.2)ProteinisexpressedfromExpi293withHistagattheC-terminal.ItcontainsArg319-Phe541(G339D,S371F,S373P,S375F,T376A,D405N,R408S,K417N,N440K,L452R,S477N,T478K,E484A,F486V,Q498R,N501Y,Y505H).人血清白蛋白(HSA)是脂類等物質(zhì)的轉(zhuǎn)運(yùn)載體,其主要生理功能是調(diào)節(jié)血漿pH值和維持血漿滲透壓。Recombinant Human CDH6/Cadherin-6 Protein,hFc Tag
糖苷酶 F (PNGase F)酶活定義(UnitDefinition)1個酶活力單位指在10μL的反應(yīng)體系中,37℃條件下1小時從10μg變性RNaseB中除去超過95%的碳水化合物所需要的酶量。儲存條件-25~-15℃保存,有效期1年。使用方法1、變性條件下蛋白質(zhì)去糖基化:1)在水中加入1μLBuffer1和目標(biāo)糖蛋白(1-20μg),至終體積10μL;2)100℃溫度下煮沸10min使其變性,冰上冷卻,離心10秒;加入2μL的Buffer2、2μL的10%NP-40、6μL去離子水,總反應(yīng)體積20μL;加入1-2μL的PNGase,輕輕混勻。在37℃孵育1-3h。2、非變性條件下蛋白質(zhì)去糖基化:1)在水中加入2μL的Buffer2和目標(biāo)糖蛋白(1-20μg)至體積為20μL。2)加入2~5μL的PNGaseF,輕輕混勻。3)37°C孵育4-24h。注意:在變性條件下大多數(shù)底物能夠更好的去糖基化,在非變性條件下可能需要增加PNGaseF的量和延長孵育時間。注意事項1.PNGaseF建議搭配我司提供的配套緩沖液使用,按我司說明書建議的操作量配套緩沖液足夠。如您由于使用體系造成配套緩沖液不足,可咨詢當(dāng)?shù)劁N售進(jìn)行購買Recombinant SARS-COV-2 Spike S1 NTD (His-Flag Tag)重組腸激酶為采用重組大腸桿菌分泌表達(dá)的高純度、高活性、高特異的牛腸激酶,不含其他蛋白酶。
性能參數(shù)表達(dá)區(qū)間及表達(dá)系統(tǒng)(Source)CynomolgusCD27Ligand/CD70ProteinisexpressedfromHEK293withHistagattheN-terminal.ItcontainsGln39-Pro194.[Accession|G7PYU6-1]分子量大?。∕olecularWeight)TheproteinhasapredictedMWof18.4kDa.Duetoglycosylation,theproteinmigratesto60-90kDabasedonTris-BisPAGEresult.(Endotoxin)Lessthan1EUperugbytheLALmethod.純度(Purity)>95%asdeterminedbyTris-BisPAGE活性(Activity)ELISAData:ImmobilizedCynomolgusCD27Ligand,HisTagat2μg/ml(100μl/well)ontheplate.DoseresponsecurveforCynomolgus/RhesusmacaqueCD27,hFcTagwiththeEC50of70.8ng/mldeterminedbyELISA.制劑(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重構(gòu)方法(Reconstitution)Centrifugetubesbeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.
Recombinant Biotinylated Human AFP (HLA-A*02:03) Protein,His-Avi Tag性能參數(shù)表達(dá)區(qū)間及表達(dá)系統(tǒng)(Source)RecombinantBiotinylatedHumanAFP(HLA-A*02:03)ProteinisexpressedfromHEK293withHistagandAvitagattheC-terminal..ItcontainsGly25-Thr305(HLA-A*02:03),Ile21-Met119(B2M)andFMNKFIYEIpeptide.[Accession|AAA03604.1(HLA-A*02:03)&P61769(B2M)&FMNKFIYEI]分子量大?。∕olecularWeight)TheproteinhasapredictedMWof50.70kDa.Duetoglycosylation,theproteinmigratesto53-60kDabasedonTris-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.在體內(nèi),活化的X因子(Factor Xa)切割凝血酶原,釋放出活性肽并將凝血酶切割成具有催化活性的α-凝血酶。
SARS-CoV-2, which causes the global pandemic coronavirus disease 2019 (Covid-19), belongs to a family of viruses known as coronaviruses that also include MERS?CoV and SARS-CoV-1. Coronaviruses are commonly comprised of four structural proteins: Spike protein (S), Envelope protein (E), Membrane protein (M) and Nucleocapsid protein (N). The SARS-CoV-2 S protein is a glycoprotein that mediates membrane fusion and viral entry. The S protein is homotrimeric, with each ~180-kDa monomer consisting of two subunits, S1 and S2 .The RBD of SARS-CoV-2 binds a metallopeptidase, angiotensin-converting enzyme 2 (ACE-2). Before binding to the ACE-2 receptor, structural analysis of the S1 trimer shows that only one of the three RBD domains is in the "up" conformation. This is an unstable and transient state that passes between trimeric subunits but is nevertheless an exposed state to be targeted for neutralizing antibody therapy. Polyclonal antibodies to the RBD of the SARS-CoV-2 protein have been shown to inhibit interaction with the ACE-2 receptor, confirming RBD as an attractive target for vaccinations or antiviral therapy. (FGF-21)是FGF基因家族的成員。 基于其結(jié)構(gòu),F(xiàn)GF-21與FGF-19和-23一起進(jìn)一步分為FGF的亞家族。Recombinant Cynomolgus IL-6 Protein,His Tag
(CDNF),也稱為甲型蛋白1,是由CDNF基因編碼的蛋白質(zhì),它在神經(jīng)元和非神經(jīng)元組織中有表達(dá)。Recombinant Human CDH6/Cadherin-6 Protein,hFc Tag
CD30,又稱KI抗原和Tnfrsf8,是一種120kdaI型跨膜糖蛋白,屬于tnf受體超家族。成熟的人CD30由一個361AA細(xì)胞外域(ECD)和六個富含半胱氨酸的重復(fù),28AA跨膜段和188AA細(xì)胞質(zhì)域。相比之下,小鼠和大鼠CD30缺乏90AA的ECD,并且只包含三個富含半胱氨酸的重復(fù)。在ECD的共同區(qū)域內(nèi),人CD30與小鼠CD30和大鼠CD30的序列認(rèn)同率分別為53%和49%。人類CD30的交替剪接產(chǎn)生一個等形,包括細(xì)胞質(zhì)域的C132AA。CD30通常在抗原細(xì)胞和B細(xì)胞上表達(dá)。但是,它在霍奇金氏病(紅-斯特恩伯格細(xì)胞上)、其他淋巴瘤、慢性炎癥中,以及自體免疫。CD30與CD30配體/tnfsf8結(jié)合,TH細(xì)胞、單核細(xì)胞、粒細(xì)胞和髓質(zhì)胸腺上皮細(xì)胞上表達(dá)。產(chǎn)品性質(zhì)別名CD30;CD30KI-1;CD30Lreceptor;TNFRSF8;D1S166EKi-1;CD30KI-1工會編號P28908-1表達(dá)區(qū)間及表達(dá)系統(tǒng)重組的人CD30/Tnfrsf8蛋白表達(dá)于在C-端有標(biāo)記和AVI標(biāo)記的HK293細(xì)胞。它含有……。分子量大約41.3公里。由于糖基化,蛋白質(zhì)遷移到70-100kda基于三聯(lián)頁面結(jié)果。純度SDS-PAGE和高效液相色譜法測定的95%。Recombinant Human CDH6/Cadherin-6 Protein,hFc Tag
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在分子生物學(xué)實驗中,PCR技術(shù)是基因擴(kuò)增的重要工具,而Pfu Master Mix (2×) (With Dye) 則是結(jié)合了高保真性和便捷性的理想選擇。這種預(yù)混液不僅繼承了Pfu DNA聚合酶的重要的保真性,還通過添加熒光染料,為實驗提供了更直觀的監(jiān)測手段。Pfu Master Mix (2×) (With Dye) 是一種即用型的2倍濃度預(yù)混液,含有Pfu DNA聚合酶、dNTPs、優(yōu)化的反應(yīng)緩沖液以及用于實時監(jiān)測的熒光染料。Pfu DNA聚合酶以其高保真性著稱,其3'-5'外切酶活性能夠在DNA合成過程中糾正錯誤摻入的堿基,提高擴(kuò)增產(chǎn)物的準(zhǔn)確性。與普通Taq酶相比,Pfu酶的錯誤率更低,...