Recombinant Human E-selectin/CD62E (His-Avi Tag)

时间:2024年04月27日 来源:

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.N-糖苷酶 F (PNGase F)在酵母中重组表达,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。Recombinant Human E-selectin/CD62E (His-Avi Tag)

Recombinant Human E-selectin/CD62E (His-Avi Tag),标准物质

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.Recombinant Human IL-1 Rrp2/IL-1 R6 Protein,hFc TagUbcH3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。

Recombinant Human E-selectin/CD62E (His-Avi Tag),标准物质

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.

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.  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,保持天然TEV酶的功能活性。

Recombinant Human E-selectin/CD62E (His-Avi Tag),标准物质

泛素化是通过三个酶促步骤实现的。在ATP依赖的过程中,泛素酶(E1)催化与泛素形成活性硫酯键,然后转移到泛素载体蛋白的活性位点半胱氨酸(E2)。泛素级联对特定底物蛋白的选择性依赖于E2结合酶(细胞中包含的相对较少)和泛素-蛋白连接酶(E3)之间的相互作用,迄今为止已经鉴定出600多种这种酶。E3s是一个大的,多样化的蛋白质组,其特征是几个确定的基序之一。这些包括HECT(与e6相关蛋白c端同源),RING(真正有趣的新基因)或U-box(没有Zn2+结合配体的完整补充的修饰的RING基序)结构域。而HECT E3s在泛素化过程中具有直接的催化作用,RING和U-box E3s促进蛋白质泛素化。 后两种E3类型充当适配器类分子。 它们使E2和底物足够接近,从而促进底物的泛素化。虽然许多RING-type e3,如MDM2和c-Cbl,可以单独发挥作用,但其他一些是作为更大的多蛋白复合体的组成部分,如后期促进复合体。综上所述,这些多面的特性和相互作用使E3s能够利用泛素-蛋白酶体系统,在真核生物的所有细胞中提供一种强大而具体的蛋白质机制。该筛选了11种常用E2结合酶,可以筛选具有E3连接酶活性的蛋白所匹配的E2酶.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。Mouse EG-VEGF

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 Human E-selectin/CD62E (His-Avi Tag)

Enterokinase,Recombinant,Expressed in E.coli大肠杆菌表达重组肠激酶(不带标签)注意事项1.本产品所讲述的缓冲体系需要自行配置。2.不建议37℃条件下酶切,可能会有非特异性酶切出现。3.在>200mM咪唑,或>200mMNaCl,或>5%甘油,酶切会受到影响。如果样品溶液中含有上述成分的一种或多种,为获得理想的酶切结果,请先将样品透析到25mMTris-HCl8.0缓冲液中,然后再进行酶切实验;若不方便透析,可将样品稀释到咪唑含量在100mM以下,NaCl浓度在50mM以下,甘油浓度小于5%以下进行酶切,酶的用量与蛋白比例不变;若干扰因素很多,且不便去除,需要适当增加酶量或延长酶切时间,有助于得到理想的酶切效果。4.磷酸盐对Enterokinase有很强的抑制作用,痕量的磷酸盐都会严重影响Enterokinase的活性,因此在酶切体系内不能存在磷酸盐。5.本品是具有高酶活力重组肠激酶,切割蛋白使用量少,可不考虑除去。后续如需去除重组肠激酶,可用阴离子交换树脂(如DEAE-FF)对其进行洗脱。推荐洗脱条件如下:平衡缓冲液:25mMTris-HClpH8.0洗脱缓冲液:25mMTris-HClpH8.0,含100mMNaCl6.蛋白酶切效果不好,可适当增加酶量,或适当延长酶切时间。Recombinant Human E-selectin/CD62E (His-Avi Tag)

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