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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.猴痘病毒A30蛋白是病毒进入宿主与细胞-细胞融合过程中所需的包膜蛋白,被认为是猴痘病毒研究中的重要靶点。Oxytocin

Oxytocin,标准物质

N-糖苷酶F(PNGaseF)是一种酰胺水解酶,经过和平空间站伊丽莎菌克隆,主要由脑膜炎脓杆菌等革兰氏阴性菌分泌。酵母重组表达N-糖苷酶F(比活性:750000U/mL),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。PNGaseF的切割位点为糖蛋白内侧N-乙酰葡萄糖胺(GlcNAc)和天冬酰氨残基之间的酰胺键,同时将酶解后蛋白上的天冬氨酰转化为天冬氨酸。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,包括酵母重组表达的N-糖苷酶F,糖苷内切酶H,糖苷内切酶S。产品信息产品性质中文别名(Chinesesynonym)N-糖酰胺酶F;N-糖苷酶F英文别名(Englishsynonym)PNGaseF来源(Source)酵母重组表达分子量(Molecularweight)36kDa比活性(Specificactivity)750000U/mL缓冲液组分(Buffer)20mMTris-HClpH7.5,50mMNaCl,5mMEDTA,50%GlycerolRecombinant Human VSIG8 Protein,hFc TagSDF-1同工型与细胞表面上的CXCR4和CXCR7受体相互作用,也可以结合Syndecan-4。

Oxytocin,标准物质

PE-labeled Human HLA-A*02:01&B2M&P53 R175H (HMTEVVRHC) Tetramer Protein,His-Avi Tag性能参数表达区间及表达系统(Source)PE-labeledHumanHLA-A*02:01&B2M&P53R175H(HMTEVVRHC)TetramerProteinisexpressedfromHEK293withHistagandAvitagattheC-Terminus.PE-labeledHumanHLA-A*02:01&B2M&P53R175H(HMTEVVRHC)TetramerisassembledbybiotinylatedmonomerandPE-labeledstreptavidin.ItcontainsGly25-Thr305(HLA-A*02:01),Ile21-Met119(B2M)andHMTEVVRHCpeptide.(Endotoxin)Lessthan1EUperμgbytheLALmethod.制剂(Formulation)Suppliedas0.22μmfilteredsolutionin20mMPB,500mMNaCl,0.2%BSA(pH8.0).储存条件Theproductshouldbestoredat-85~-65℃for3monthfromdateofreceipt.Recommendtoaliquottheproteinintosmallerquantitieswhenfirstusedandavoidrepeatedfreeze-thawcycles.

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。鼠AFGF与人AFGF具有96%的氨基酸序列身份,因此它在鼠和人AFGF之间表现出相当大的物种交叉反应性。

Oxytocin,标准物质

产品性质英文别名(EnglishSynonym)Factor-1CAS号(CASNO.)9001-32-5外观(Appearance)白色至类白色冻干粉末或块状物蛋白含量(ProteinContent)50-70%protein((≥85%ofproteinisclottable)溶解性(Solubility)溶于0.9%生理盐水(10mg/ml),不溶于水运输和保存方法冰袋运输。-20℃保存,有效期4年。注意事项1)纤维蛋白原一般应采用37℃的生理盐水溶解,溶解时温度不宜过低,在4℃条件下以及不含盐的溶液中难以溶解。注意纤维蛋白原溶液在50℃以上变性,因此加热温度不宜超过50℃。2)为了您的安全和健康,请穿实验服并戴一次性手套操作。3)本产品作科研用途!储存液配制牛纤维蛋白原可溶于0.9%NaCl溶液,配制成2.5-10mg/ml的溶液于-20℃冻存,无菌过滤后可稳定保存约1周。注:①溶解时将本品缓慢置于37℃预热的生理盐水,可轻轻搅动使其慢慢溶解,不可旋涡震荡!②过滤时建议用0.2µm滤膜过滤,不可用0.1µm滤膜。可使用注射器缓慢过滤,不可用真空过滤。RANTES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 Cynomolgus APOH 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。Oxytocin

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.  Oxytocin

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LL37 (Human) 2026-02-27

重组人TFF1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。TFF1(Trefoil Factor 1)是一种小分子分泌性蛋白,属于Trefoil因子家族,主要在胃肠黏膜细胞中表达,广参与胃肠黏膜的保护、修复和细胞增殖。TFF1在维持胃肠黏膜的完整性和功能中发挥重要作用。TFF1的功能与机制TFF1通过其独特的Trefoil结构域与其他细胞外基质蛋白(如黏蛋白)相互作用,形成保护性凝胶层,防止胃酸和消化酶对胃肠黏膜的损伤。此外,TFF1还通过与细胞表面受体结合,调节细胞的黏附、迁移和增殖,促进胃肠黏膜的修复和再生。在胃溃疡、炎症性肠病等胃肠疾病中...

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