糖苷内切酶H是一种重组糖苷酶,能够对N-糖蛋白中的高甘露糖和某些杂合型寡聚糖的壳二糖结构进行切割,去除糖蛋白中的N-连接高甘露糖。糖苷内切酶H克隆自褶皱链霉菌(Streptomycesplicatus)。并在酵母中重组表达。本产品带his标签,常应用于抗体及其相关蛋白完全去糖基化。另外,我司还提供其他类型的糖苷酶,包括糖苷内切酶S(Cat#20413ES),酵母重组表达的N-糖苷酶F(比活性:750000U/mL),酵母重组表达的N-糖苷酶F(比活性:100000U/mL)。储存条件-15~-25℃保存,有效期1年。使用说明变性条件下蛋白质去糖基化1)在水中加入1μLBuffer1和目标糖蛋白(1-20μg),至终体积10μL;2)100℃温度下煮沸10min使其变性,冰上冷却,离心10秒;3)加入2μL的Buffer2,8μL去离子水,总反应体积20μL;4)加入1-2μL的EndoH,轻轻混匀。在37℃孵育1-3h。5)65℃下热失活10分钟。非变性条件下蛋白质去糖基化1)在水中加入2μL的Buffer2和目标糖蛋白(1-20μg)至终体积为20μL。2)加入2~5μL的EndoH,轻轻混匀。3)37°C孵育4-24h。注意:在变性条件下大多数底物能够更好的去糖基化,在非变性条件下可能需要增加EndoH的量和延长孵育时间。PreScission Protease是一种由人鼻病毒14型的3C蛋白酶(human rhinovirus)和GST组成的融合蛋白。Recombinant Mouse Siglec-5/CD170 Protein,His Tag
Recombinant Biotinylated Human AFP (HLA-A*02:03) Protein,His-Avi Tag性能参数表达区间及表达系统(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]分子量大小(MolecularWeight)TheproteinhasapredictedMWof50.70kDa.Duetoglycosylation,theproteinmigratesto53-60kDabasedonTris-BisPAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.纯度(Purity)>95%asdeterminedby>95%asdeterminedbyHPLC制剂(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重构方法(Reconstitution)Centrifugetubesbeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.Rat FGF-21成纤维细胞生长因子18(FGF-18)是20 kDa蛋白,在骨骼发育和骨稳态中起着重要作用。
Recombinant Human ACE2/ACEH Protein,hFc Tag性能参数,分子别名(Synonyms)ACE2;ACEH;ACE-2表达区间及表达系统(Source)HumanACE2/ACEHProteinisexpressedfromHEK293withhFctagattheC-Terminus.ItcontainsGln18-Ser740.[Accession|Q9BYF1-1]分子量大小(MolecularWeight)TheproteinhasapredictedMWof109.2kDa.Duetoglycosylation,theproteinmigratesto115-130kDabasedonSDS-PAGEresult.Endotoxin)Lessthan1EUperμgbytheLALmethod.纯度(Purity)>95%asdeterminedbySDS-PAGEandHPLC.活性(Activity)ELISAData:ImmobilizedSARS-COV-2SpikeS(B.1.1.529/Omicron)Trimer,HisTagat1μg/ml(100μl/well)ontheplate.DoseresponsecurveforHumanACE2,hFcTagwiththeEC50of13.7ng/mldeterminedbyELISA.制剂(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重构方法(Reconstitution)Centrifugethetubebeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.
Angiotensin I Converting Enzyme (ACE-2), also called ACEH (ACE homologue), is a dimeric, zinc-dependent metalloprotease of the ACE family that also includes somatic and germinal ACE. ACE-2 mRNA is found at high levels in heart, testis, and kidney and at lower levels in a wide variety of tissues. ACE-2 is the SARS-CoV and SARS-CoV2 Spike protein receptor in vivo, functions catalytically as a carboxypeptidase to cleave several substrates including angiotensins I and II, and acts as a partner for B0AT1-family amino acid transporters. Through these functions, ACE-2 has been shown to be involved in several diseases including SARS, COVID19, acute lung injury, heart disease, liver and lung fibrosis, inflammatory lung disease, and cardiopulmonary disease . Full length ACE-2 protein includes an extracellular region composed of a single N-terminal peptidase domain and C-terminal collectrin-like domain (CLD), a transmembrane domain, and a short cytoplasmic tail. The N-terminal peptidase region is required for binding to SARS-CoV and SARS-CoV2 spike proteins, while the CLD contains a region that promotes dimerization and association with amino acid transporters.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。
N-糖苷酶F(PNGaseF)是一种酰胺水解酶,经过和平空间站伊丽莎菌克隆,主要由脑膜炎脓杆菌等革兰氏阴性菌分泌。酵母重组表达N-糖苷酶F(比活性:750000U/mL),可以裂解由天冬酰胺连接的高甘露糖、杂合和复杂的寡糖糖蛋白。PNGaseF的切割位点为糖蛋白内侧N-乙酰葡萄糖胺(GlcNAc)和天冬酰氨残基之间的酰胺键,同时将酶解后蛋白上的天冬氨酰转化为天冬氨酸。本产品带his标签,常应用于抗体及其相关蛋白完全去糖基化。另外,我司还提供其他类型的糖苷酶,包括酵母重组表达的N-糖苷酶F,糖苷内切酶H,糖苷内切酶S。产品信息产品性质中文别名(Chinesesynonym)N-糖酰胺酶F;N-糖苷酶F英文别名(Englishsynonym)PNGaseF来源(Source)酵母重组表达分子量(Molecularweight)36kDa比活性(Specificactivity)750000U/mL缓冲液组分(Buffer)20mMTris-HClpH7.5,50mMNaCl,5mMEDTA,50%Glycerol重组肠激酶(rEK)是一种高纯度的重组牛肠激酶轻链片段,氨基酸序列与牛肠激酶轻链一致,有着酶切位点。Recombinant Mouse AMCase/CHIA Protein,His Tag
甲磺酸达比加群酯是一种抗凝药,通过竞争结合凝血酶的纤维蛋白特异结合位点,从而抑制血栓的形成。Recombinant Mouse Siglec-5/CD170 Protein,His Tag
Recombinant Biotinylated Human MSLN/Mesothelin Protein,hFc-Avi Tag分子别名(Synonyms)Mesothelin;CAK1;MSLN;MPFSMRP表达区间及表达系统(Source)BiotinylatedHumanMSLN/MesothelinProteinisexpressedfromHEK293withhFctagandAvitagattheC-Terminus.ItcontainsGlu296-Gly580.[Accession|Q13421-2]分子量大小(MolecularWeight)TheproteinhasapredictedMWof61.1kDa.Duetoglycosylation,theproteinmigratesto70-80kDabasedonSDS-PAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.纯度(Purity)>95%asdeterminedbySDS-PAGEandHPLC.活性(Activity)ELISAData:ImmobilizedAnti-MSLNAntibody,hFcTagat1μg/ml(100μl/well)ontheplate.DoseresponsecurveforBiotinylatedHumanMSLN,hFcTagwiththeEC50of18.4ng/mldeterminedbyELISA.Recombinant Mouse Siglec-5/CD170 Protein,His Tag
不同的DNA聚合酶在PCR中的应用差异主要体现在以下几个方面:1.**TaqDNAPolymerase**:是常用的DNA聚合酶之一,来源于Thermusaquaticus,具有较高的热稳定性及扩增效率。但它缺乏3'-5'核酸外切酶活性,即没有校正功能,因此其保真性相对较低。Taq酶适合扩增较短的DNA片段(通常不超过3kb),且在PCR产物的3'端带A碱基,可直接用于TA克隆。2.**PfuDNAPolymerase**:来源于Pyrococcusfuriosus,是一种高保真聚合酶,具有3'-5'外切酶活性,可以修复并纠正PCR反应中的腺嘌呤碱基误配,有效防止误差累积。Pfu聚合酶适用于需...