Coronavirusesarecommonlycomprisedoffourstructuralproteins:Spikeprotein(S),Envelopeprotein(E),Membraneprotein(M)andNucleocapsidprotein(N).TheSARS-CoV-2Sproteinisaglycoproteinthatmediatesmembranefusionandviralentry.TheSproteinishomotrimeric,witheach~180-kDamonomerconsistingoftwosubunits,S1andS2.TheRBDofSARS-CoV-2bindsametallopeptidase,angiotensin-convertingenzyme2(ACE-2).产品性质别名SproteinRBD;SglycoproteinRBD;SpikeproteinRBDAccessionQHD43416.1表达区间及表达系统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).eotaxin-2在空肠和脾脏中组成型表达, 它也可以通过过敏原挑战和IL-4在肺中诱导。Recombinant Biotinylated Human BTN3A2 Protein,His-Avi Tag
Recombinant Biotinylated Human OX40/TNFRSF4/CD134 Protein (Primary Amine Labeling),hFc Tag性能参数分子别名(Synonyms)OX40Lreceptor;CD134;TNFRSF4;Ly-70表达区间及表达系统(Source)BiotinylatedHumanOX40/TNFRSF4/CD134Protein(PrimaryAmineLabeling)isexpressedfromHEK293withhFctagattheC-Terminus.ItcontainsLeu29-Ala216.[Accession|P43489]分子量大小(MolecularWeight)TheproteinhasapredictedMWof46.8kDa.Duetoglycosylation,theproteinmigratesto72-75kDabasedonSDS-PAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.纯度(Purity)>95%asdeterminedbySDS-PAGE制剂(Formulation)Suppliedas0.22μmfilteredsolutioninPBS(pH7.4).储存条件Theproductshouldbestoredat-85~-65℃for1yearfromdateofreceipt.Recommendtoaliquottheproteinintosmallerquantitieswhenfirstusedandavoidrepeatedfreeze-thawcycles.Recombinant Human BetacellulinProtein,hFc Tageotaxin-2还具有抑制髓样细胞增殖的能力,髓样细胞增殖是Eotaxin不共有的生物学功能。
性能参数表达区间及表达系统(Source)CynomolgusCD27Ligand/CD70ProteinisexpressedfromHEK293withHistagattheN-terminal.ItcontainsGln39-Pro194.[Accession|G7PYU6-1]分子量大小(MolecularWeight)TheproteinhasapredictedMWof18.4kDa.Duetoglycosylation,theproteinmigratesto60-90kDabasedonTris-BisPAGEresult.(Endotoxin)Lessthan1EUperugbytheLALmethod.纯度(Purity)>95%asdeterminedbyTris-BisPAGE活性(Activity)ELISAData:ImmobilizedCynomolgusCD27Ligand,HisTagat2μg/ml(100μl/well)ontheplate.DoseresponsecurveforCynomolgus/RhesusmacaqueCD27,hFcTagwiththeEC50of70.8ng/mldeterminedbyELISA.制剂(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重构方法(Reconstitution)Centrifugetubesbeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.
Bovine Thrombin,High Specific Activity,>2000 IU/mg 牛凝血酶(高活力,>2000 IU/mg)本品有效切割质量比1:2000,通常在未做过预实验的情况下建议在1:1000质量比进行体系的优化,即1mg的目的蛋白加入2U的酶(2000U/mg),使用时可用生理盐水将酶配成100U/mL,有效消化缓冲液:20mMTris-HCl,含150mMNaCl,pH8.0。在20℃-37℃切割0.3-16h。注意:①具体反应温度可根据融合蛋白的性质而定,如需要低温保存的蛋白,可在4℃切割24h。②因为凝血酶会吸附在玻璃上,建议用塑料管分装冻存(-20℃)凝血酶溶液。注意事项1.此冻干产品稳定性好,2~8℃条件下保存3年,酶活力未有变化。室温条件下保存1年,酶活力未有变化。2.本产品作科研用途。3.为了您的安全和健康,请穿实验服并佩戴一次性手套操作。UbcH3还有两个泛素结合位点UBS1(来自aa 205-215)和UBS2(来自aa 216-225),以及一个c端酸性尾部结构域。
重组型TEV蛋白酶(rTEV)是经过基因工程改造和纯化后的重组蛋白酶,不仅保持天然TEV酶的功能活性,且在广谱的温度范围内表现出更强的稳定性和特异性。rTEV是一种用来切除融合蛋白上亲和标签的常用工具酶,具有很强的位点特异性,严格识别七氨基酸序列EXXYXQ↓(G/S),切割位点在谷氨酰胺和甘氨酸/丝氨酸之间。普遍应用的七氨基酸序列为:Glu-Asn-Leu-Tyr-Phe-Gln↓-Gly。rTEV在pH7.0,30℃时可达活性,但在pH6.0-8.5和温度4-30℃范围内皆有活性(见表1),使得反应条件的选择可根据目的蛋白的情况而灵活变动。另外rTEV切割后也能利用其N端的6×His标签,通过Ni-NTA树脂去除,以达到纯化目的蛋白的目的。产品性质来源(Source)大肠杆菌外观(Appearance)无色透明液体比活力(SpecificActivity)5U/μL活性定义(UnitDefinition)在1×rTEVBuffer(50mMTris,pH8.0,0.1mMEDTA,1mMDTT)中,30℃反应1h,剪切>85%的3μg底物所需要的酶量定义为一个活性单位。纯化(Purification)Ni柱亲和纯化纯度(Purity)≥95%(bySDS-PAGE)产品组分运输与保存方法冰袋运输。CX3CL1受到促炎性刺激的上调,包括巨噬细胞,树突状细胞,内皮细胞,神经元,平滑肌,上皮细胞的细胞类型。Recombinant Mouse NKp46/NCR1/CD335 Protein,His Tag
IdeS 具有独特的底物选择性,可以作为工具酶应用于抗体类药物或抗体融合蛋白药物的结构表征分析。Recombinant Biotinylated Human BTN3A2 Protein,His-Avi Tag
Trop-2,alsoknownasepithelialglycoprotein-1antigen(EGP-1),isaproteinthatinhumansisencodedbytheTACSTD2gene.Mutationsofthisgeneresultingelatinousdrop-likecornealdystrophy,anautosomalrecessivedisordercharacterizedbyseverecornealamyloidosisleadingtoblindness.产品性质别名EGP1;EGP-1;TROP2;GA733-1;gp50;T16;TACSTD2;TROP-2;M1S1;TACD2UniprotNo.P09758表达区间及表达系统RecombinantBiotinylatedHumanTROP-2/TACSTD2ProteinisexpressedfromHEK293cellswithHistagandAvitagattheC-terminal.ItcontainsHis27-Thr274.分子量TheproteinhasapredictedMWof30.5kDa.Duetoglycosylation,theproteinmigratesto46-55kDabasedonTris-BisPAGEresult.纯度>95%asdeterminedbySDS-PAGEandHPLC活性ELISAData:ImmobilizedAnti-TROP-2Antibody,hFcTagat0.5μg/mL(100μL/well)ontheplate.DoseresponsecurveforBiotinylatedHumanTROP-2,HisTagwiththeEC50of24.1ng/mLdeterminedbyELISA.0EUper1μgoftheproteinbytheLALmethod.制剂Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally5%trehaloseisaddedasprotectantbeforelyophilization.Recombinant Biotinylated Human BTN3A2 Protein,His-Avi Tag
Lambda核酸外切酶(LambdaExonuclease,简称λExonuclease)是一种具有特定特性和应用的酶,以下是其主要特点和应用:1.**特异性作用**:λExonuclease是一种5'→3'核酸外切酶,能选择性地沿5'→3'方向消化5'端磷酸化的双链DNA。2.**酶切活性**:对单链DNA和5'端未磷酸化修饰的DNA的酶切活性较低,不能从DNA的切刻或缺口处起始消化。3.**嗜磷酸性**:该酶具有非常强的嗜磷酸性,磷酸化的核酸链与非磷酸化的核酸链的切割效率相差达200倍以上。4.**切割效率**:Lambda核酸外切酶是一种具有高度持续性的碱性核酸外切酶,可以连续地将核酸切...