ForquantitativedetectionofhumanAngiostatinK1-3inserum,plasmaandcellculturesupernates.
TypicalDataObtainedfromHumanAngiostatinK1-3
(TMBreactionincubateat37°Cfor25min)
Concentration(pg/ml) | 0 | 156 | 312 | 625 | 1250 | 2500 | 5000 | 10,000 |
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O.D | 0.015 | 0.132 | 0.253 | 0.423 | 0.746 | 1.355 | 1.827 | 2.310 |
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TypicalHumanAngiostatinK1-3ELISAKitStandardCurve
ThisstandardcurvewasgeneratedatEtonfordemonstrationpurposeonly.Astandardcurvemustberunwitheachassay.
Range156pg/ml-10,000pg/ml
Sensitivity<10pg/ml
SpecificityNaturalandrecombinanthumanAngiostatinK1-3
Cross-reactivityNodetectablecross-reactivitywithotherrelevantproteins
Storage
Storeat4°Cfor6months,at-20°Cfor12months.Avoidmultiplefreeze-thawcycles(Shippedwithwetice.)
Principle
Eton’shumanAngiostatinK1-3ELISAKitwasbasedonstandardsandwichenzyme-linkedimmune-sorbentassaytechnology.AmonoclonalantibodyfrommousespecificforAngiostatinK1-3hasbeenprecoatedonto96-wellplates.Standardsandtestsamplesareaddedtothewells,abiotinylateddetectionpolyclonalantibodyfromgoatspecificforAngiostatinK1-3isaddedsubsequentlyandthenfollowedbywashingwithPBSorTBSbuffer.Avidin-Biotin-PeroxidaseComplexwasaddedandunboundconjugateswerewashedawaywithPBSorTBSbuffer.HRPsubstrateTMBwasusedtovisualizeHRPenzymaticreaction.TMBwascatalyzedbyHRPtoproduceabluecolorproductthatchangedintoyellowafteraddingacidicstopsolution.ThedensityofyellowisproportionaltothehumanAngiostatinK1-3amountofsamplecapturedinplate.
KitComponents
Description |
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96-wellplateprecoatedwithanti-humanAngiostatin | K1-3 | 1 |
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antibody |
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LyophilizedrecombinanthumanAngiostatinK1-3standard |
| 10ng/tube×2 |
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Biotinylatedanti-humanAngiostatinK1-3antibody |
| 130μl(dilution1:100) |
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Avidin-Biotin-PeroxidaseComplex(ABC) |
| 130μl(dilution1:100) |
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Samplediluentbuffer |
| 30ml |
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Antibodydiluentbuffer |
| 12ml |
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ABCdiluentbuffer |
| 12ml |
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TMBcolordevelopingagent |
| 10ml |
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TMBstopsolution |
| 10ml |
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MaterialRequiredButNotProvided
1.Microplatereaderinstandardsize.
2.Automatedplatewasher.
3.AdjustablePipettesandpipettetips.Multichannelpipettesarerecommendedintheconditionoflargeamountofsamplesinthedetection.
5.Washingbuffer(neutralPBSorTBS).
Preparationof0.01MTBS:Add1.2gTris,8.5gNacl;450μlofpurifiedaceticacidor700μlofconcentratedhydrochloricacidto1000mlH2OandadjustpHto7.2-7.6.Finally,adjustthetotalvolumeto1L.
Preparationof0.01MPBS:Add8.5gsodiumchloride,1.4gNa2HPO4and0.2gNaH2PO4to1000mldistilledwaterandadjustpHto7.2-7.6.Finally,adjustthetotalvolumeto1L.
NoticeforApplicationofKit
1.Toinspectthevalidityofexperimentoperationandtheappropriatenessofsampledilutionproportion,pilotexperimentusingstandardsandasmallnumberofsamplesisrecommended.
2.TheTMBColorDevelopingagentiscolorlessandtransparentbeforeusing,contactusfreelyifitisnotthecase.
3.BeforeusingtheKit,spintubesandbringdownallcomponentstothebottomoftubes.
4.Duplicatewellassayisrecommendedforbothstandardandsampletesting.
5.Don’tlet96-wellplatedry,fordryplatewillinactivateactivecomponentsonplate.
6.Don’treusetipsandtubestoavoidcrosscontamination.
7.Toavoidtousethereagentsfromdifferentbatchestogether.
8.Inordertoavoidmarginaleffectofplateincubationduetotemperaturedifference(reactionmaybestrongerinthemarginalwells),itissuggestedthatthedilutedABCandTMBsolutionwillbepre-warmedin37for30minbeforeusing.
Preparation
1.SamplePreparationandStorage
Storesamplestobeassayedwithin24hoursat2-8°C.Forlong-termstorage,aliquotandfreezesamplesat-20°C.Avoidrepeatedfreeze-thawcycles.
Cellculturesupernates:Removeparticulatesbycentrifugation,analyzeimmediatelyoraliquotandstoreat-20°C
Serum:Allowtheserumtoclotinaserumseparatortube(about4hours)atroomtemperature.Centrifugeatapproximately1000Xgfor15min.Analyzetheserumimmediatelyoraliquotandstorefrozenat-20°C.
Plasma:Collectplasmausingheparin,EDTAorcitrateasananticoagulant.Centrifugefor15minat1000xgwithin30minofcollection.Analyzeimmediatelyoraliquotandstorefrozenat-20C.
2.SampleDilutionGuideline
Theuserneedstoestimatetheconcentrationofthetargetproteininthesampleandselectaproperdilutionfactorsothatthedilutedtargetproteinconcentrationfallsnearthemiddleofthelinearregimeinthestandardcurve.Dilutethesampleusingtheprovideddiluentbuffer.Thefollowingisaguidelineforsampledilution.Severaltrialsmaybenecessaryinpractice.Thesamplemustbewellmixedwiththediluentsbuffer.
Hightargetproteinconcentration(100-1000ng/ml).Theworkingdilutionis1:100.i.e.Add1μlsampleinto99μlsamplediluentbuffer.
Mediumtargetproteinconcentration(10-100ng/ml).
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