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. UbcH7耗尽导致S期延长和增殖速率降低,提示它可能在细胞周期中起作用。Recombinant Human LRP-5Protein,mFc 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 Cynomolgus TROP-2/TACSTD2 Protein,His TagCX3CL1还通过募集巨噬细胞以及通过募集和介导破骨细胞前体的粘附而导致伤口愈合。

产品简介凝血酶是由大小分别为31KD和6KD的两条肽链通过二硫键组成的一种丝氨酸蛋白水解酶,可从动物血浆中利用已凝血酶原水解制得,可催化纤维蛋白原(fibrinogen)水解释放A肽和B肽,由此形成纤维蛋白单体,单体进一步聚合,在血小板、红细胞和白细胞等参与下形成血凝块,常用于诊断学中凝血化验、凝血因子检测、血液或血浆的脱纤维化等;另外,由于凝血酶切割序列专一,水解效率高,因此在分子生物学、生物化学或生物工程制药研究中也常作为工具酶用于重组融合蛋白(包含凝血酶识别位点)的特异性断裂。本品是从牛的血浆纯化制得,具有纯度高、比活高、不含有其他蛋白酶活性、灭活病毒、生产稳定性好等特点。该酶适切割位点:A-B-Pro-Arg-▼-X-Y(其中,A和B为疏水氨基酸,X和Y为非酸性氨基酸),常见的识别序列为:1.Leu-Val-Pro-Arg-▼-Gly-Ser。2.Gly-Arg-▼-Gly。产品信息规格1KU/2KU
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,不仅保持天然TEV酶的功能活性,且在广谱的温度范围内表现出更强的稳定性和特异性。rTEV是一种用来切除融合蛋白上亲和标签的常用工具酶,具有很强的位点特异性,严格识别七氨基酸序列EXXYXQ↓(G/S),切割位点在谷氨酰胺和甘氨酸/丝氨酸之间。普遍应用的七氨基酸序列为:Glu-Asn-Leu-Tyr-Phe-Gln↓-Gly。rTEV在pH7.0,30℃时可达活性,但在pH6.0-8.5和温度4-30℃范围内皆有活性(见表1),使得反应条件的选择可根据目的蛋白的情况而灵活变动。另外rTEV切割后也能利用其N端的6×His标签,通过Ni-NTA树脂去除,以达到纯化目的蛋白的目的。产品性质来源(Source)大肠杆菌外观(Appearance)无色透明液体比活力(SpecificActivity)5U/μL活性定义(UnitDefinition)在1×rTEVBuffer(50mMTris,pH8.0,0.1mMEDTA,1mMDTT)中,30℃反应1h,剪切>85%的3μg底物所需要的酶量定义为一个活性单位。纯化(Purification)Ni柱亲和纯化纯度(Purity)≥95%(bySDS-PAGE)产品组分运输与保存方法冰袋运输。通过研究,CDNF可防止6-羟基多巴胺(6-OHDA)诱导的多巴胺能神经元变性,这可能对帕金森氏病有益。

Coronavirusesarecommonlycomprisedoffourstructuralproteins:Spikeprotein(S),Envelopeprotein(E),Membraneprotein(M)andNucleocapsidprotein(N).TheSARS-CoV-2Sproteinisaglycoproteinthatmediatesmembranefusionandviralentry.TheSproteinishomotrimeric,witheach~180-kDamonomerconsistingoftwosubunits,S1andS2.TheRBDofSARS-CoV-2bindsametallopeptidase,angiotensin-convertingenzyme2(ACE-2).产品性质别名SproteinRBD;SglycoproteinRBD;SpikeproteinRBDAccessionQHD43416.1表达区间及表达系统RecombinantSARS-CoV-2SpikeRBD(OmicronBA.4/BA.5/BA.5.1.3/BA.5.2)ProteinisexpressedfromExpi293withHistagattheC-terminal.ItcontainsArg319-Phe541(G339D,S371F,S373P,S375F,T376A,D405N,R408S,K417N,N440K,L452R,S477N,T478K,E484A,F486V,Q498R,N501Y,Y505H).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 TNFSF15 Protein,monomeric Fc Tag
凝血酶是由大小分别为31 KD和6 KD的两条肽链通过二硫键组成的一种丝氨酸蛋白水解酶。Recombinant Human LRP-5Protein,mFc Tag
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.Recombinant Human LRP-5Protein,mFc Tag
重组人SLPI蛋白(hFc Tag)是一种在哺乳动物细胞中表达的重组蛋白,融合了hFc标签,便于纯化和检测。SLPI(分泌性白细胞蛋白酶抑制剂)是一种低分子量的分泌性蛋白,广存在于体液(如唾液、泪液、支气管分泌物)和炎症部位,具有抗蛋白酶活性和免疫调节功能,在炎和抗沾染过程中发挥重要作用。SLPI的功能与机制SLPI通过抑制中性粒细胞弹性蛋白酶、组织蛋白酶G等蛋白酶的活性,保护宿主组织免受蛋白酶介导的损伤。此外,SLPI还具有免疫调节功能,能够抑制促炎细胞因子(如TNF-α、IL-1β)的产生,调节巨噬细胞和树突状细胞的活化,从而减轻炎症反应。SLPI在多种炎症性疾病(如慢性阻塞性肺病、病、炎...