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主营:研究并生产荧光和发光探针,信号转导研究的试剂
℡ 4000-520-616
℡ 4000-520-616
AAT Bioquest/Amplite™ Fluorimetric Lysyl Oxidase Assay Kit *Red Fluorescence*/15255/500 Tests
产品编号:15255
市  场 价:¥85560.00
场      地:美国(厂家直采)
联系QQ:1570468124
电话号码:4000-520-616
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美  元  价:$4278.00
品      牌: AAT Bioquest
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AAT Bioquest/Amplite™ Fluorimetric Lysyl Oxidase Assay Kit *Red Fluorescence*/15255/500 Tests
商品介绍
Overview
PrinterFriendlyVersion

Ex/Em(nm)571/585
MWN/A
CAS#N/A
SolventN/A
StorageF/D/L
CategoryEnzymeDetection
RedoxEnzymes
RelatedMicroplateReaders
BiochemicalAssays
Lysyloxidase(LOX)isanextracellularenzymethatcatalyzesformationofaldehydesfromlysineresiduesincollagenandelastinprecursors.Thesealdehydesarehighlyreactive,andundergospontaneouschemicalreactionswithotherlysyloxidase-derivedaldehyderesidues,orwithunmodifiedlysineresidues.Thisresultsincross-linkingcollagenandelastinwhichisessentialforstABIlizationofcollagenfibrilsandfortheintegrityandelasticityofmatureelastin.LysyloxidasehasbeenidentifiedasapossIBLetumorsuppressor.LysyloxidaseactivityinBIOLOGicalsamplesistrADItionallyandmostreliablyassessedbytritiumreleaseend-pointassaysusingradiolabeledcollagenorelastinsubstratesinvolvinglaboriousvacuumdistillationofthereleasedtritiatedwater.ThiskitoffersasensitivefluorescentassaytomeasureLOXactivityusingourproprietaryLOXsubstratethatreleaseshydrogenperoxideuponLOXoxidation.TheamountofhydrogenperoxidereleasedbytheLOXoxidationisdetectedusingourAmplite™HRPsubstrateintheHRP-coupledreactions.Thismethodallowsthedetectionofsubng/mLlysyloxidaseandismuchmoresensitivethanthecurrentlyavailablefluorimetricassayforthisenzymeactivity.Thismethodeliminatestheinterferencethatoccursinsomebiologicalsamplesandcanbereadilyusedtodetectlysyloxidaseactivityincellcultureexperiments.Pleasenotethatthekitdoesnotincludethelysyloxidaseenzyme.
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Thisprotocolonlyprovidesaguideline,andshouldbemodifiedaccordingtoyourspecificneeds.

1.Preparestocksolutions:

1.1    250XAmplite™HRPSubstratestocksolution:Add100µLofDMSO(ComponentD)intothevialofAmplite™HRPSubstrate(ComponentA).Thestocksolutionshouldbeusedpromptly;anyunusedsolutionshouldbealiquotedandrefrozenat-20oC.Avoidrepeatedfreeze-thawcycles.

Note1:Amplite™HRPSubstrateisunstableinthepresenceofthiolssuchasDTT,glutathione(reducedform:GSH)andβ-mercaptoethanol.Thepresenceofthiolsatconcentrationhigherthan10μMwouldsignificantlydecreasetheassaydynamicrange.

Note2:Somedetergents(suchasBrij-35,Tween-20andNP40),NADHandNADPHalsointerferewiththeassay.

1.2   50U/mLHorseradishPeroxidasestocksolution:Add1mLofAssayBuffer(ComponentB)intothevialofHorseradishPeroxidase(ComponentC).Note:TheunusedHRPsolutionshouldbedividedintosingleusealiquotsandstoredat-20oC.

2.Prepareassayreactionmixture:

Prepareassayreactionmixtureaccordingtothefollowingtablesandkeepfromlight.

 

Table1.2XAssayreactionmixtureforone96-wellplate

Components

Volume

Amplite™HRPSubstratestocksolution(250X,fromStep1.1)

20μL

50U/mLHorseradishPeroxidase(fromStep1.2)

20μL

AssayBuffer(ComponentB)

5mL

Totalvolume

5mL

Table2.LayoutofLysylOxidasestandardsandtestsamplesinasolidblack96-wellmicroplate

BL

BL

TS

TS

….

….

 

 

 

 

 

 

LS1

LS1

….

….

….

….

 

 

 

 

 

 

LS2

LS2

 

 

 

 

 

 

 

 

 

 

LS3

LS3

 

 

 

 

 

 

 

 

 

 

LS4

LS4

 

 

 

 

 

 

 

 

 

 

LS5

LS5

 

 

 

 

 

 

 

 

 

 

LS6

LS6

 

 

 

 

 

 

 

 

 

 

LS7

LS7

 

 

 

 

 

 

 

 

 

 

   Note:LS=LysylOxidaseStandards,BL=BlankControl,TS=TestSamples.

 

Table3.Reagentcompositionforeachwell

LysylOxidaseStandards

BlankControl

TestSample

SerialDilutions*:50μL

AssayBuffer(ComponentB):50μL

50μL

*Note1:AddtheseriallydilutedLysylOxidasestandardsfrom0.04to4μg/mLintowellsfromLS1toLS7induplicate.

Note2:HighconcentrationofLysylOxidasemaycausereducedfluorescencesignalduetotheoveroxidationofAmplite™HRPSubstrate(toanon-fluorescentproduct).

Note3:LysylOxidasestandardsareforpositivecontrolonly,andshouldnotbereliedonasaquantitationstandardforenzymeactivity.

3.Runlysyloxidaseassayinsupernatants:

3.1   Add50μLofassayreactionmixture(fromStep2)intoeachwelloflysyloxidasestandard,blankcontrol,andtestsamples(seeStep2,Table3)tomakethetotallysyloxidaseassayvolumeof100µL/well.

Note:Fora384-wellplate,add25μLofsampleand25μLofassayreactionmixtureintoeachwell.

3.2   Incubatethereactionat37oCfor10to30minutes,protectedfromlight.

3.3   MonitorthefluorescenceincreasewithafluorescenceplatereaderatEx/Em=540/590nm.

Note:Thecontentsoftheplatecanalsobetransferredtoawhiteclearbottomplateandreadbyanabsorbancemicroplatereaderatthewavelengthof576±5nm.Theabsorptiondetectionhaslowersensitivitycomparedtofluorescencereading.

4.Runlysyloxidaseassayforcells:

TheAmplite™FluorimetricLysylOxidaseAssayKitcanbeusedtomeasurethereleaseofactivelysyloxidasefromcells.Thefollowingisasuggestedprotocolthatcanbemodifiedaccordingtoyourspecificresearchneeds.

4.1   Preparecellsina96-wellplate(50-100μL/well),andactivatethecellsasdesired.Harvestthecellmedia.

Note:Thenegativecontrols(mediaaloneandnon-activatedcells)areincludedformeasuringbackgroundfluorescence.

4.2   Add50μLofassayreactionmixture(fromStep2)intoeachwellofthecellmedia(fromStep4.1),andthoseoflysyloxydasestandards(fromStep2).

Note:Fora384-wellplate,add25μLofcellmediaand25μLofassayreactionmixtureintoeachwell.

4.3   Incubatethereactionat37oCfor10to30minutes,protectedfromlight.

4.4   MonitorthefluorescenceincreasewithafluorescenceplatereaderatEx/Em=530to570/590to600nm(maximumEx/Em=540/590nm,cutoff570nm).

References&Citations
CitationExplorer

Detrimentalroleoflysyloxidaseincardiacremodeling
Authors:EliaCElHajj,MiladCElHajj,VanKNinh,JessicaMBradley,MarioAClaudino,JasonDGardner
Journal:JournalofMolecularandCellularCardiology(2017)

EndothelialAntioxidant-1:aKeyMediatorofCopper-dependentWoundHealinginvivo
Authors:ArchitaDas,VaradarajanSudhahar,Gin-FuChen,HaWonKim,Seock-WonYoun,LydiaFinney,StefanVogt,JayYang,JunghunKweon,BayasgalanSurenkhuu
Journal:ScientificReports(2016)

Inhibitionoflysyloxidasebycortisolregenerationinhumanamnion:Implicationsforruptureoffetalmembranes
Authors:ChaoLiu,ChunmingGuo,WangshengWang,PingZhu,WenjiaoLi,YabingMi,LeslieMyatt,KangSun
Journal:Endocrinology(2016):4055--4065

InhibitionoflysyloxidasebyprostaglandinE2viaEP2/EP4receptorsinhumanamnionfibroblasts:Implicationsforparturition
Authors:ChaoLiu,PingZhu,WangshengWang,WenjiaoLi,QunShu,Zi-JiangChen,LeslieMyatt,KangSun
Journal:Molecularandcellularendocrinology(2016):118--127

LOXFailstoSubstituteforRANKLinOsteoclastogenesis
Authors:MasayukiTsukasaki,KokiHamada,KazuoOkamoto,KazukiNagashima,AsukaTerashima,NorikoKomatsu,StephanieJWin,TadashiOkamura,TakeshiNitta,HisatakaYasuda
Journal:JournalofBoneandMineralResearch(2016)

ReversalofVascularCalcificationandAneurysmsinaRatModelUsingDualTargetedTherapywithEDTA-andPGG-LoadedNanoparticles
Authors:NasimNosoudi,AniqaChowdhury,StevenSiclari,SakethKaramched,VaideeshParasaram,JoeParrish,PatrickGerard,NarendraVyavahare
Journal:Theranostics(2016):1975

SuppressionofPhosphatidylinositol3-Kinase/AktSignalingAttenuatesHypoxia-InducedPulmonaryHypertensionThroughtheDownregulationofLysylOxidase
Authors:Xiao-DongXia,JasmineLee,SajidKhan,LepingYe,YuanLi,LiangDong
Journal:DNAandCellBiology(2016):599--606

Attenuationoflipopolysaccharide-inducedlungvascularstiffeningbylipoxinreduceslunginflammation
Authors:FanyongMeng,IsaMambetsariev,YufengTian,YvonneBeckham,AngeloMeliton,AlanLeff,MargaretLGardel,MichaelJAllen,KonstantinGBirukov,AnnaABirukova
Journal:Americanjournalofrespiratorycellandmolecularbiology(2015):152--161

Attenuationoflysyloxidaseandcollagengeneexpressioninkeratoconuspatientcornealepitheliumcorrespondstodiseaseseverity
Authors:RohitShetty,ArunapriyaSathyanarayanamoorthy,ReshmaAirodyRamachandra,VishalArora,AnupritaGhosh,PurnimaRamanSrivatsa,NatashaPahuja,RudyMMANuijts,AbhijitSinha-Roy,RajivRMohan
Journal:(2015)

Coppertransportproteinantioxidant-1promotesinflammatoryneovascularizationviachaperoneandtranscriptionfactorfunction
Authors:Gin-FuChen,VaradarajanSudhahar,Seock-WonYoun,ArchitaDas,JaehyungCho,TetsuroKamiya,NorifumiUrao,RonaldDMcKinney,BayasgalanSurenkhuu,TakaoHamakubo
Journal:Scientificreports(2015)


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