WholeIgGantibodiesareisolatedasintactmoleculesfromantiserabyimmunoaffinitychromatography.TheyhaveanFcportionandtwoantigenbindingFabportionsjoinedtogetherbydisulfidebondsandthereforetheyaredivalent.Theaveragemolecularweightisreportedtobeabout160kDa.ThewholeIgGformofantibodiesissuitableforthemajorityofimmunodetectionproceduresandisthemostcosteffective.
Storefreeze-driedpowderat2-8°C.Whenreadytouse,rehydratewithindicatedvolumeofd.waterandcentrifugeifnotclear.Productisstableforabout6weeksat2-8°Casanundilutedliquid.Prepareworkingdilutionfresheachday.Forextendedstorageafterrehydration,addanequalvolumeofglycerol(ACSgradeorbetter)forafinalconcentrationof50%,andstoreat-20°Casaliquid.Note:aftertheadditionofglycerol,theconcentrationofproteinandbuffersaltsisone-halfoftheoriginal.Alternatively,aliquotandfreezetheproductat-70°Corbelowintheabsenceofglycerol.Avoidrepeatedfreezingandthawing.
Expirationdate:oneyearfromdateofrehydration.However,theexpirationdatemaybeextendediftheproductisstoredaccordingtotherecommendationandthetestresultsareacceptableforitsintendeduse.
Note:Storestainedspecimensat4°Ctopreservefluorescence.
1:50-1:200formostapplications
Dilutionfactorsarepresentedintheformofarangebecausetheoptimaldilutionisafunctionofmanyfactors,suchasantigendensity,permeability,etc.Theactualdilutionusedmustbedeterminedempirically.
BDBrilliant™Violet480(BV480)hasanExcitationpeakat436nmwithmaximalemissionat478nm.BrilliantVioletpolymerchainscanbeconsideredasacollectionofopticalsegments,eachwiththeabilitytoabsorblightandemitfluorescencesignal.Thisresultsinmaterialsthathaveabrightfluorescencesignalforbetterresolutionandsensitivity.
Ifnuclearcounterstainingisdesired,4-colorantibodystainingispossibleusingBrilliantViolet™421,BrilliantViolet™480,AlexaFluor®488andRhodamineRed™-X.Ifnuclearcounterstainingisdesired,4-colorantibodystainingispossibleusingBrilliantViolet™421,BrilliantViolet™480,AlexaFluor®488andRhodamineRed™-X.SwitchingthenuclearstainfromDAPI(emissionintheblueregion)toDRAQ5™(whichhasredemission)freestheviolet-blueregionofthespectrumtoaccommodatethetwoBrilliantVioletdyes.DRAQ5’sexcitationandemissionprofilesoverlapthoseofAlexaFluor647.
