BAM-22P

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.  α-凝血酶（α-Thrombin）可以启动XIII因子和血小板，或者用作血管收缩剂。BAM-22P

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，有着和天然提取的肠激酶同样特异的酶切位点，切割位点Asp-Asp-Asp-Asp-Lys，可去除位于蛋白N-末端的融合蛋白，以除去不需要的融合标签，同时重组肠激酶（rEK）具有比天然酶更高的切割活性。重组肠激酶为采用重组大肠杆菌分泌表达的高纯度、高活性、高特异的牛肠激酶，不含其他蛋白酶，可以在较宽pH范围（4.5-9.5）和较宽温度范围内有效切割融合蛋白，并且在各种去垢剂和变性剂存在的条件下仍具有部分活性。本品不含标签，由于具有极高酶切活性，酶切反应使用量少，不影响下游蛋白应用，可不考虑除去。产品信息规格100U/200U/500U/1000U/5000U产品性质来源（Source）大肠杆菌表达分子量（MolecularWeight）理论值25.85kDa外观（Appearance）澄清、无色至淡黄色液体酶浓度（EnzymeConcentration）≥5U/uL活性定义（ActivityDefinition）一个活性单位定义为25°C，12-16h，Recombinant Human E-selectin/CD62E (His-Avi Tag)IdeS Protease全称免疫球蛋白G降解酶是由人类致病菌酿脓链球菌产生并分泌至胞外的一种半胱氨酸水解酶。

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.

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.（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。

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。SUMO蛋白酶识别完整的含有100个氨基酸的SUMO标签蛋白，并能高效地把SUMO从融合蛋白上切割下来。Recombinant Mouse PTK7/CCK4 Protein,His Tag

泛素化反应可以修饰蛋白质，调节蛋白质降解。泛素化还影响蛋白质体事件，如蛋白质定位、活性和功能。BAM-22P

Recombinant Biotinylated Human HLA-A*03:01&B2M&KRAS G12V (VVGAVGVGK) Monomer Protein,His-Avi Tag性能参数分子别名（Synonyms）MHC;KRAS;K-Ras2;KRAS2;C-K-RAS;CFC2;K-RAS2A;K-RAS2B;K-RAS4A;K-RAS4B;KRAS1;KRAS2;NS;NS3;RASK2;GTPaseKras;KI-RAS;RALD表达区间及表达系统（Source）BiotinylatedHumanHLA-A*03:01&B2M&KRASG12V(VVGAVGVGK)MonomerProteinisexpressedfromHEK293withHistagandAvitagattheC-TerminusItcontainsGly25-Thr305(HLA-A*03:01),Ile21-Met119(B2M)andVVGAVGVGKpeptide.[Accession|NP_002107.3(HLA-A*03:01)&P61769(B2M)&VVGAVGVGK]分子量大小（MolecularWeight）TheproteinhasapredictedMWof50.09kDa.Duetoglycosylation,theproteinmigratesto51-60kDabasedonSDS-PAGEresult.（Endotoxin）Lessthan1EUperμgbytheLALmethod.纯度（Purity）>95%asdeterminedbySDS-PAGEandHPLC.制剂（Formulation）Suppliedas0.22μmfilteredsolutioninPBS(pH7.4).BAM-22P