透明质酸酶,英文名称Hyaluronidase,一类能够降低体内透明质酸活性的酶的总称,结构上由4个相同亚基构成,每个亚基分子量接近14kDa,该酶是一种糖蛋白,包含5%的甘露糖和2.2%的葡萄糖胺。功能上该酶可随机裂解透明质酸、软骨素和硫酸软骨素中的β-N-乙酰己糖胺-[1→4]糖苷键。常与胶原酶联合使用于降解细胞外基质,从而从组织中分离活细胞。本品来源于牛睾丸,活力值为400–1,000units/mg,合适的pH值为4.5–6.0。产品性质中文别名(ChineseSynonym)玻璃糖醛酸酶;玻璃酸酶英文别名(EnglishSynonym)Hyaluronoglucosaminidase;Hyaluronate4-glycanohydrolaseCAS号(CASNO.)37326-33-3来源(Source)牛睾丸分子量(MolecularWeight)~55kDa类型(Type)I-S外观(Appearance)淡黄色至米黄色至褐色粉末eotaxin-2还具有抑制髓样细胞增殖的能力,髓样细胞增殖是Eotaxin不共有的生物学功能。Recombinant Cynomolgus LAMP5 Protein,His Tag
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.Hemorphin-7内分泌腺衍生的血管内皮生长因子(EG-VEGF),也称为(PK1),是分泌蛋白的原蛋白蛋白家族的成员。
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.
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.AFGF在调节细胞存活,细胞分裂,血管生成,细胞分化和细胞迁移中起重要作用。
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.然而,在肝脏中,IL-28A诱导的Th1细胞因子反应有助于T细胞介导的肝炎的炎症。Recombinant Human SIRP alpha/CD172a Protein,hFc Tag
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。Recombinant Cynomolgus LAMP5 Protein,His 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 LAMP5 Protein,His Tag
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Bst Plus DNA Polymerase (40 U/μL) 是一种从嗜热脂肪芽孢杆菌(Thermophilic Geobacillus sp)DNA聚合酶I衍生的酶,缺乏5'-3'外切核酸酶活性。以下是关于Bst Plus DNA Polymerase (40 U/μL)的一些关键信息:来源和特性:Bst Plus DNA Polymerase 具有更强的5'-3' DNA聚合酶活性、链置换活性和dUTP耐受性,适合用于抗污染的等温扩增反应,如LAMP和CPA等。应用:主要应用于等温DNA扩增,包括环介导等温扩增(LAMP)和其他等温扩增技术。规格:活性定义:1 U指的是在65°C下3...