標題:牛凝血酶(Bovine Thrombin)的高比活應(yīng)用及其在生物醫(yī)學研究中的重要性摘要牛凝血酶(Bovine Thrombin),一種高比活度的絲氨酸蛋白水解酶,具有>2000 IU/mg的特異性活性,廣泛應(yīng)用于生物醫(yī)學研究和臨床,本文綜述了牛凝血酶的分子特性、在血液凝固中的作用機制以及其在科研和工業(yè)生產(chǎn)中的應(yīng)用。引言牛凝血酶是從牛血漿中提取的酶,分子量為37KD,由兩條肽鏈(31KD和6KD)通過二硫鍵組成。作為凝血過程中的關(guān)鍵酶,牛凝血酶催化纖維蛋白原(fibrinogen)水解,形成纖維蛋白單體,進而促進血凝塊的形成。由于其高度的序列專一性和水解效率,牛凝血酶不僅在生理止血中發(fā)揮作用,也作為分子生物學研究中的工具酶。材料與方法產(chǎn)品性質(zhì)分析:分析牛凝血酶的CAS號、分子量、比活度、外觀和純度等物理化學性質(zhì)。運輸和保存方法:評估牛凝血酶的運輸條件和長期儲存穩(wěn)定性。使用方法:探討牛凝血酶在不同實驗條件下的溶解、復(fù)溶和消化條件。α-凝血酶(α-Thrombin)在凝血過程中起著非常重要的作用,能夠促使纖維蛋白凝塊的產(chǎn)生。Recombinant Human RANKL/TNFSF11/CD254 Protein
RecombinantBiotinylatedHumanAFP(HLA-A*02:03)Protein,His-AviTag性能參數(shù)表達區(qū)間及表達系統(tǒng)(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?。∕olecularWeight)TheproteinhasapredictedMWof50.70kDa.Duetoglycosylation,theproteinmigratesto53-60kDabasedonTris-BisPAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.純度(Purity)>95%asdeterminedby>95%asdeterminedbyHPLC制劑(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重構(gòu)方法(Reconstitution)Centrifugetubesbeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.Recombinant Human CLEC10A Protein,His TagPreScission Protease是一種由人鼻病毒14型的3C蛋白酶(human rhinovirus)和GST組成的融合蛋白。
RecombinantHumanACE2/ACEHProtein,hFcTag性能參數(shù),分子別名(Synonyms)ACE2;ACEH;ACE-2表達區(qū)間及表達系統(tǒng)(Source)HumanACE2/ACEHProteinisexpressedfromHEK293withhFctagattheC-Terminus.ItcontainsGln18-Ser740.[Accession|Q9BYF1-1]分子量大?。∕olecularWeight)TheproteinhasapredictedMWof109.2kDa.Duetoglycosylation,theproteinmigratesto115-130kDabasedonSDS-PAGEresult.Endotoxin)Lessthan1EUperμgbytheLALmethod.純度(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.制劑(Formulation)Lyophilizedfrom0.22μmfilteredsolutioninPBS(pH7.4).Normally8%trehaloseisaddedasprotectantbeforelyophilization.重構(gòu)方法(Reconstitution)Centrifugethetubebeforeopening.Reconstitutingtoaconcentrationmorethan100μg/mlisrecommended.Dissolvethelyophilizedproteinindistilledwater.
ERBB3,又稱HH3(人表皮生長因子受體3),是一種I型膜糖蛋白,是酪氨酸激酶受體ERBC家族的成員。ERBP家族成員作為表皮生長因子(LU)家族的生長因子的受體。在ERBP家庭成員中,因為它含有一個缺陷的激酶域。ERBB3在角化細胞、黑色素細胞、骨骼肌細胞、成肌細胞和雪旺細胞中都有表達。單體ERbb3是一種低親和性的受體。ERBB3與ERBB2的異聚反應(yīng)形成高親和性受體復(fù)合物。與此相反,ERBB3同向聚合或異向聚合形成了一個低親和性的結(jié)合物。因為ERBB3含有一個有缺陷的激酶域,ERBB2的激酶域負責通過異二重瓣受體啟動酪氨酸磷酸化信號。研究發(fā)現(xiàn),ERBB3細胞質(zhì)區(qū)內(nèi)的三個離散氨基酸信號對ERBB2的轉(zhuǎn)導至關(guān)重要。ERBB3的細胞質(zhì)域也包含6個一致的結(jié)合主題,用于調(diào)節(jié)P85磷酸酶3激酶(PI3K)的HS2領(lǐng)域,以及一個豐富的一致的結(jié)合主題。ERBB3的細胞質(zhì)域也包含6個一致的結(jié)合主題,用于調(diào)節(jié)P85磷酸酶3激酶(PI3K)的HS2領(lǐng)域,以及一個豐富的一致的結(jié)合主題。ERBB3的細胞質(zhì)域也包含6個一致的結(jié)合主題,用于調(diào)節(jié)P85磷酸酶3激酶(PI3K)的HS2領(lǐng)域,以及一個豐富的一致的結(jié)合主題。表達區(qū)間及表達系統(tǒng)重組的人HR3/ERBB3蛋白表達自于C-端的HK293細胞和AVI標記。里面有血清20-Thr643。分子量大約71.6泛素化反應(yīng)可以修飾蛋白質(zhì),調(diào)節(jié)蛋白質(zhì)降解。泛素化還影響蛋白質(zhì)體事件,如蛋白質(zhì)定位、活性和功能。
Name:AITRL,MouseSynonyms:Activation-inducedTNFRmemberLigand,TNFSF18,GITRL,TL-6Description:Activation-InducibleTNF-RelatedLigand(AITRL),alsoknownasGlucocorticoid-InducedTNF-RelatedLigand(GITRL),belongstothetumornecrosisfactorsuperfamily(TNFSF).AITRLisaTypeIIsingletransmembraneproteinandshareslowconservationwithintheextracellulardomainwithotherTNFSFmembers.AITRLisexpressedonmacrophages,immatureandmaturedendriticcellsandBcells.Itsreceptor,Activation-InducibleTNFRfamilyReceptor(AITR),isexpressedonTlymphocytes,naturalkiller(NK)cells,andantigen-presentingcells.AfterbindingbyAITRL,AITRcanbereleased.AITRactivationincreasesresistancetotumorsandviralinfectionsandisinvolvedinautoimmuneandinflammatoryprocesses.Inaddition,activatedAITRincreasesTCR-inducedTcellproliferationandcytokineproductionandrescuesTcellsandNKcellsfromapoptosis.RecombinantmouseActivation-InducibleTNF-RelatedLigand(rmAITRL)producedinE.在分子生物學、生物化學或生物工程制藥研究中也常作為工具酶用于重組融合蛋白的特異性斷裂。Recombinant Cynomolgus LILRA6/CD85b/ILT8 Protein,His Tag
腸激酶能夠特異性識別并切割含有Aspartate-Aspartate-Aspartate-Lysine (DDDK) 序列的蛋白質(zhì)。Recombinant Human RANKL/TNFSF11/CD254 Protein
RecombinantBiotinylatedHumanHLA-A*02:01&B2M&MAGE-A4orMAGE-A8(KVLEHVVRV)MonomerProtein,His-AviTag性能參數(shù)分子別名(Synonyms)MAGE-A4orMAGE-A8;MAGE-A4;MAGE-A8;表達區(qū)間及表達系統(tǒng)(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?。∕olecularWeight)TheproteinhasapredictedMWof50.50kDa.Duetoglycosylation,theproteinmigratesto52-62kDabasedonSDS-PAGEresult.(Endotoxin)Lessthan1EUperμgbytheLALmethod.純度(Purity)>95%asdeterminedbySDS-PAGEandHPLC.制劑(Formulation)Suppliedas0.22μmfilteredsolutioninPBS(pH7.4).儲存條件Theproductshouldbestoredat-85~-65℃for1yearfromdateofreceipt.Recombinant Human RANKL/TNFSF11/CD254 Protein