Melittin

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.  泛素蛋白是一个76个氨基酸，高度保守的核和细胞质蛋白。Melittin,honey bee

CD40,alsoknownasTNFRSF5,isa45-50kDatypeItransmembraneglycoproteinmemberoftheTNFreceptorsuperfamily.MaturehumanCD40consistsofa173aminoacid(aa)extracellulardomain,atransmembranedomain,anda62aacytoplasmicdomain.CD40servesmultiplefunctionsinbothhematopoieticandepithelialcancersandisatargetfortumorimmunotherapy.DysregulationofCD40/CD40LigandexpressionandinteractionscontributestotheimmunedeficiencyassociatedwithHIVinfectionandAIDS.Itisalsoimplicatedinthepathologyofmultiplecardiovasculardiseasesincludingatherosclerosis,atherothrombosis,andrestenosis.产品性质别名CD40;CD40Lreceptor;TNFRSF5;CD40antigen;CD40molecule;CDw40;MGC9013;UniprotNo.P25942表达区间及表达系统RecombinantBiotinylatedHumanCD40/TNFRSF5ProteinisexpressedfromHEK293CellswithHistagandAvitagattheC-terminal.ItcontainsGlu21-Arg193.分子量Approximately22.1kDa.Duetoglycosylation,theproteinmigratesto35-40kDabasedonTris-BisPAGEresult.纯度>95%asdeterminedbySDS-PAGEandHPLC.活性Recombinant Human FGFR2 alpha (IIIc) Protein,His TagRANTES是CC趋化因子，可以通过CCR1，CCR3，CCR5和US28（巨细胞病毒受体）受体发出信号。

CD30,又称KI抗原和Tnfrsf8,是一种120kdaI型跨膜糖蛋白,属于tnf受体超家族。成熟的人CD30由一个361AA细胞外域(ECD)和六个富含半胱氨酸的重复,28AA跨膜段和188AA细胞质域。相比之下,小鼠和大鼠CD30缺乏90AA的ECD,并且只包含三个富含半胱氨酸的重复。在ECD的共同区域内,人CD30与小鼠CD30和大鼠CD30的序列认同率分别为53%和49%。人类CD30的交替剪接产生一个等形,包括细胞质域的C132AA。CD30通常在抗原细胞和B细胞上表达。但是,它在霍奇金氏病(红-斯特恩伯格细胞上)、其他淋巴瘤、慢性炎症中,以及自体免疫。CD30与CD30配体/tnfsf8结合,TH细胞、单核细胞、粒细胞和髓质胸腺上皮细胞上表达。产品性质别名CD30;CD30KI-1;CD30Lreceptor;TNFRSF8;D1S166EKi-1;CD30KI-1工会编号P28908-1表达区间及表达系统重组的人CD30/Tnfrsf8蛋白表达于在C-端有标记和AVI标记的HK293细胞。它含有……。分子量大约41.3公里。由于糖基化,蛋白质迁移到70-100kda基于三联页面结果。纯度SDS-PAGE和高效液相色谱法测定的95%。

SARS-CoV-2,whichcausestheglobalpandemiccoronavirusdisease2019(Covid-19),belongstoafamilyofvirusesknownascoronaviruses.TheSARS-CoV-2Sproteinisaglycoproteinthatmediatesmembranefusionandviralentry.TheRBDofSARS-CoV-2bindsametallopeptidase,angiotensin-convertingenzyme2(ACE-2).SeveralemergingSARS-CoV-2genomeshavebeenidentifiedincludingtheOmicron,orB.1.1.529,variant.FirstidentifiedinNovember2021inSouthAfrica,theOmicronvariantquicklybecamethepredominantSARS-CoV-2variantandisconsideredavariantofconcern(VOC).TheOmicronvariantcontains15mutationsinRBDdomainthatpotentiallyaffectviralfitnessandtransmissibility.ThemajorityofthemutationsareinvolvedinACE-2bindingandOmicronbindsACE-2withgreateraffinity,potentiallyexplainingitsincreasedtransmissibility.Severalofthesemutationsarealsoidentifiedinfacilitatingimmuneescapeandreducingneutralizationactivitytoseveralmonoclonalantibodies.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。

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。（CDNF）也是一种新型神经营养因子，对多巴胺能神经元的强大活性，与神经胶质细胞系衍生的（GDNF）相当。Recombinant Human CD45/PTPRC Protein,His-Avi Tag

双碱性内切酶又称为Kex2蛋白酶、YSCF蛋白酶，在酵母体内Kex2蛋白酶负责加工killer toxin和α-factor的前体。Melittin,honey bee

Recombinant Biotinylated Human HLA-A*02:01&B2M&MAGE-A4 or MAGE-A8 (KVLEHVVRV) Monomer Protein,His-Avi Tag性能参数分子别名（Synonyms）MAGE-A4orMAGE-A8;MAGE-A4;MAGE-A8;表达区间及表达系统（Source）BiotinylatedHumanHLA-A*02:01&B2M&MAGE-A4orMAGE-A8(KVLEHVVRV)MonomerProteinisexpressedfromHEK293withHistagandAvitagattheC-Terminus.ItcontainsGly25-Thr305(HLA-A*02:01),Ile21-Met119(B2M)andKVLEHVVRVpeptide.[Accession|A0A140T913(HLA-A*02:01)&P61769(B2M)&KVLEHVVRV]分子量大小（MolecularWeight）TheproteinhasapredictedMWof50.50kDa.Duetoglycosylation,theproteinmigratesto52-62kDabasedonSDS-PAGEresult.（Endotoxin）Lessthan1EUperμgbytheLALmethod.纯度（Purity）>95%asdeterminedbySDS-PAGEandHPLC.制剂（Formulation）Suppliedas0.22μmfilteredsolutioninPBS(pH7.4).储存条件Theproductshouldbestoredat-85~-65℃for1yearfromdateofreceipt.Melittin,honey bee

浦斯瑞（上海）生物医药有限公司汇集了大量的优秀人才，集企业奇思，创经济奇迹，一群有梦想有朝气的团队不断在前进的道路上开创新天地，绘画新蓝图，在江苏省等地区的化工中始终保持良好的信誉，信奉着“争取每一个客户不容易，失去每一个用户很简单”的理念，市场是企业的方向，质量是企业的生命，在公司有效方针的领导下，全体上下，团结一致，共同进退，**协力把各方面工作做得更好，努力开创工作的新局面，公司的新高度，未来浦斯瑞（上海）生物医药供应和您一起奔向更美好的未来，即使现在有一点小小的成绩，也不足以骄傲，过去的种种都已成为昨日我们只有总结经验，才能继续上路，让我们一起点燃新的希望，放飞新的梦想！