MouseIgG(H+L)HighlyCross-AdsorbedSecondaryAntibody(A-21202)inIF
ImmunofluorescenceanalysisofDonkeyanti-MouseIgG(H+L)SecondaryAntibody,AlexaFluor488conjugate(Product#A-21202)wasperformedusingMCF-7cellsstainedwithCytokeratin19MouseMonoclonalAntibody(Product#MA5-12613).Thecellswerefixedwith4%paraformaldehydefor10minutes,permeABIlizedwith0.1%Triton?X-100for10minutes,blockedwith1%BSAfor1hourandlabeledwithmouseprimaryantibody(1:250dilution)for3hoursatroomtemperature.Donkeyanti-MouseIgG(H+L)SecondaryAntibody,AlexaFluor488conjugatewasusedatconcentrationof0.2μg/mlinphosphatebufferedsalinecontaining0.2%BSAfor45minutesatroomtemperature,fordetectionofcytokeratin19inthemembrane(Panela:green).Nuclei(Panelb:blue)werestainedwithDAPIinSlowFade?GoldAntifadeMountant(Product#S36938).F-actinwasstainedwithRhodaminePhalloidin(Product#R415,1:300)(Panelc:red).Paneldrepresentsthecompositeimage.Nononspecificstainingwasobservedwiththesecondaryantibodyalone(panelf),orwithanisotypecontrol(panele).Theimageswerecapturedat60X 
ProductDetails
| TESTEDAPPLICATIONS | DILUTION | 
|---|
| Immunocytochemistry(ICC) | 0.2μg/ml | 
| Immunofluorescence(IF) | 1:2000 | 
| Immunohistochemistry(IHC) | 1-10μg/ml | 
| PUBLISHEDAPPLICATIONS | 
 | 
|---|
| Immunohistochemistry(IHC) | See6publicationsbelow | 
| Immunocytochemistry(ICC) | See17publicationsbelow | 
| Immunohistochemistry(Paraffin)(IHC(P)) | See3publicationsbelow | 
| Immunohistochemistry(Frozen)(IHC(F)) | See5publicationsbelow | 
| FlowCytometry(Flow) | See1publicationsbelow | 
| MiscellaneousPubMed(MISC) | See36publicationsbelow | 
| Speciesreactivity | Mouse | 
| Host/Isotype | Donkey/IgG | 
| Class | Polyclonal | 
| Type | SecondaryAntibody | 
| Immunogen | GammaImmunoglobinsHeavyandLightchains | 
| Conjugate | AlexaFluor?488 | 
| Excitation/EmissionProfile | Viewspectra  | 
| Form | Liquid | 
| Concentration | 2mg/ml | 
| Purification | purified | 
| Storagebuffer | PBS,pH7.5 | 
| Contains | 5mMsodiumazide | 
| Storageconditions | 4°C,storeindark | 
| RRID | AB_141607 | 
| Target | IgG | 
| AntibodyForm | WholeAntibody | 
ProductSpecificInformation
Tominimizecross-reactivity,thesedonkeyanti-mouseIgGwholeantibodieshavebeenaffinity-purifiedandshowminimumcross-reactivitytobovine,chicken,goat,guineapig,hamster,horse,human,mouse,rat,andsheepserumproteins.Cross-adsorptionorpre-adsorptionisapurificationsteptoincreasespecificityoftheantibodyresultinginhighersensitivityandlessbackgroundstaining.Thesecondaryantibodysolutionispassedthroughacolumnmatrixcontainingimmobilizedserumproteinsfrompotentiallycross-reactivespecies.Onlythenonspecific-bindingsecondaryantibodiesarecapturedinthecolumn,andthehighlyspecificsecondariesflowthrough.Thebenefitsofthisextrastepareapparentinmultiplexing/multicolor-stainingexperiments(e.g.,flowcytometry)wherethereispotentialcross-reactivitywithotherprimaryantibodiesorintissue/cellfluorescentstainingexperimentswheretheremaybethepresenceofendogenousimmunoglobulins.
AlexaFluordyesareamongthemosttrustedfluorescentdyesavailabletoday.Invitrogen?AlexaFluor488dyeisabright,green-fluorescentdyewithexcitationideallysuitedtothe488nmlaserline.Forstablesignalgenerationinimagingandflowcytometry,AlexaFluor488dyeispH-insensitiveoverawidemolarrange.Probeswithhighfluorescencequantumyieldandhighphotostabilityallowdetectionoflow-abundanceBIOLOGicalstructureswithgreatsensitivity.AlexaFluor488dyemoleculescanbeattachedtoproteinsathighmolarratioswithoutsignificantself-quenching,enablingbrighterconjugatesandmoresensitivedetection.Thedegreeoflabelingforeachconjugateistypically2-8fluorophoremoleculesperIgGmolecule;theexactdegreeoflabelingisindicatedonthecertificateofanalysisforeachproductlot.
Usingconjugatesolutions:Centrifugetheproteinconjugatesolutionbrieflyinamicrocentrifugebeforeuse;addonlythesupernatanttotheexperiment.Thisstepwillhelpeliminateanyproteinaggregatesthatmayhaveformedduringstorage,therebyreducingnonspecificbackgroundstaining.Becausestainingprotocolsvarywithapplication,theappropriatedilutionofantibodyshouldbedeterminedempirically.Forthefluorophore-labeledantibodiesafinalconcentrationof1-10μg/mLshouldbesatisfactoryformostimmunohistochemistryandflowcytometryapplications.
Background/TargetInformation
WeofferanextensivelineofInvitrogen?secondaryantibodyconjugateswithwell-characterizedspecificityandlabeledwithawideselectionofpremiumfluorescentdyes,includingInvitrogen?AlexaFluor?fluorescentdyes.Fluorescentsecondaryantibodyconjugatesareusefulinthedetection,sorting,orpurificationofitsspecifiedtargetandidealforfluorescencemicroscopyandconfocallaserscanningmicroscopy,flowcytometry,andfluorescentwesterndetection.ThebreadthoffluorescentMarkersweofferallowsourreagentstobetailoredtoalmostanyfluorescentdetectionsystem.
Secondaryantibodiesmaybeprovidedinthreeformats:wholeIgG,divalentF(ab')2fragments,andmonovalentFabfragments.Becauseofthehighdegreeofconservationinthestructureofmanyimmunoglobulindomains,mostclass-specificsecondaryantibodiesmustbeaffinity-purifiedandcross-adsorbedtoachieveminimalcross-reactionwithotherimmunoglobulins.
Oursecondaryantibodyconjugatesaremostcommonlypreparedbyimmunizingthehostanimalwithapooledpopulationofimmunoglobulinsfromthetargetspeciesandcanbefurtherpurifiedandmodified(e.g.,immunoaffinitychromatography,antibodyfragmentation,labelconjugation,etc.)togeneratehighlyspecificreagents.Inthefirstroundofpurification,wholeimmunoglobulinsbindingtotheimmunizingantibodyarerecoveredandmainlyconsistofthe~150-kDaIgGclass.Furtherpurification,forexample,withProteinAorG,removesallunwantedimmunoglobulinclassesexcepttheaffinity-purifiedantibodiesthatreactwiththetarget-specificimmunoglobulinheavyand/orlightchains.
ForResearchUseOnly.Notforuseindiagnosticprocedures.Notforresalewithoutexpressauthorization.