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Recombinant Biotinylated Human ENPP-3 Protein,His-Avi Tag性能参数分子别名(Synonyms)NPP3;E-NPP3;PD-Ibeta表达区间及表达系统(Source)BiotinylatedHumanENPP-3ProteinisexpressedfromHEK293withHistagandAvitagattheN-Terminus.ItcontainsLeu48-Ile875.[Accession|O14638]分子量大小(MolecularWeight)TheproteinhasapredictedMWof99.97kDa.Duetoglycosylation,theproteinmigratesto110-130kDabasedonSDS-PAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.纯度(Purity)>95%asdeterminedbySDS-PAGEandHPLC.制剂(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重构方法(Reconstitution)Centrifugethetubebeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.储存条件Theproductshouldbestoredat-25~-15℃for1yearfromdateofreceipt.2-7days,2~8°Cundersterileconditionsafterreconstitution.3-6months,-85~-65℃understerileconditionsafterreconstitution.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 Human IFN alpha/beta R1 Protein,His-Avi Tag

Recombinant Human IFN alpha/beta R1 Protein,His-Avi Tag,标准物质

Recombinant Biotinylated Cynomolgus Siglec-10 Protein,His-Avi Tag性能参数分子别名(Synonyms)SLG2;SIGLEC10;MGC126774;PRO940表达区间及表达系统(Source)BiotinylatedCynomolgusSiglec-10ProteinisexpressedfromHEK293withHistagandAvitagattheC-terminus.ItcontainsThr17-Asn552.[Accession|A0A2K5WBX8]分子量大小(MolecularWeight)TheproteinhasapredictedMWof61.71kDa.Duetoglycosylation,theproteinmigratesto72-82kDabasedonSDS-PAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.纯度(Purity)>95%asdeterminedbySDS-PAGE制剂(Formulation)Suppliedas0.22μmfilteredsolutionin25mMMES,150mMNaCl,0.5MArginine(pH5.0).储存条件Theproductshouldbestoredat-85~-65℃for1yearfromdateofreceipt.Recommendtoaliquottheproteinintosmallerquantitieswhenfirstusedandavoidrepeatedfreeze-thawcycles.Recombinant Human SEMA4B Protein,His TagRANTES还具有抑制某些HIV-1,HIV-2和Simian免疫缺陷病毒(SIV)的菌株的能力。

Recombinant Human IFN alpha/beta R1 Protein,His-Avi Tag,标准物质

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.

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.RANTES是对单核细胞,记忆T细胞(CD4+/CD45RO),嗜碱性粒细胞和嗜酸性粒细胞的趋化剂。

Recombinant Human IFN alpha/beta R1 Protein,His-Avi Tag,标准物质

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。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 DLK1 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 Human IFN alpha/beta R1 Protein,His-Avi Tag

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.Recombinant Human IFN alpha/beta R1 Protein,His-Avi Tag

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Recombinant Human FOLR3Protein 2024-11-14

磁珠法在基因克隆中的应用主要体现在以下几个方面:1.**质粒DNA的提取**:磁珠法可以用于从细菌细胞中提取质粒DNA,这对于质粒的克隆和表达至关重要。通过磁珠法提取的质粒DNA纯度高,适合用于后续的酶切、连接、转化等分子克隆步骤。2.**基因组DNA的提取**:磁珠法可以用于从各种生物样本中提取基因组DNA,这对于基因组的克隆和分析非常重要。提取的基因组DNA可以用于PCR扩增、基因表达分析、基因突变检测等。3.**mRNA的提取和纯化**:在mRNA克隆中,磁珠法可以用于提取和纯化mRNA,这对于cDNA的合成和基因表达分析非常关键。磁珠法提取的mRNA纯度高,可以用于后续的cDNA合成和...

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