Specifications
TandemUbiquitinBindingEntities(TUBEs)capitalizeonthelinkageofmultipleubiquitininteractingmotifs(UIMs)togeneratereagentswithhighaffinityforpolyubiquitin.BiotinK63-TUBEbindsK63-linkedpolyubiquitinwith a1000 to 10,000-fold preferenceforK63overotherlinkagetypesandprovidesasensitiveandcost-effectivetoolfordeterminingtheabundanceofK63-linkedpolyubiquitininthe cell, oridentifyingthelinkage-typeassociatedwithaparticularproteinofinterest.BasedonanengineeredpeptidedevelopedbySimsetal.,BiotinK63-TUBE consistsofmultiple ubiquitininteracting motifsseparatedbyrigidlinkers,presumablyincreasingitsaffinitytoextendedK63polyubiquitinchains.BiotinK63-TUBE isusefulfordetectionandcharacterizationofK63-linkedpolyubiquitylatedproteinsbyFarWesternblotting,affinitypurificationfromlysatesandBIOLOGicalfluids,andinsitudetection.
FarWesternswithBiotinK63-TUBE1requireonlyminormodificationstoexistingimmunoblotprotocols,themostnotableofwhichistoavoidsubjectingtheblottodenaturingconditions,e.g.boilingorautoclaving,whicharecommontreatmentsusedinWesternblottingprotocolsforubiquitinantibodies.BiotinK63-TUBEsubstitutesfortheanti-ubiquitinIgGastheprimarydetectionreagent.Secondarydetectionisthenaccomplishedwithanavidinor streptavidinenzyme conjugate.
Fluorescein-(UM504F)andTAMRA-(UM504T)labeledversionsofK63TUBEarealsoavailableforfarWesternapplications.Pleaseinquirefordetails.
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Info
Formulation | 0.5mg/mlinPBS,pH7.2 |
MolecularWeight | 22,024Da |
Recommendeddilution | 1:1000 |