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Innova Biosciences/PiColorLock™/303-0125/2500/6250 assays

PiColorLock™phosphatedetectionreagentchangescolourinthepresenceofinorganicphosphate(Pi).ThiscanbeexploitedtomeasureanyenzymethatgeneratesPiincludingATPases,GTPases,phosphatases,heat-shockproteinsandDNAunwindingproteins.

TheuniqueformulationofPiColorLock™affordsenhancedassaylinearity,dynamicrangeandcolourstABIlity;itisalsopossIBLewithPiColorLock™toworkwithunstablesubstrates(e.g.ATP,GTP)thatgivehighnon-enzymaticbackgroundsignalswithotheracidicdye-baseddetectionreagents.

Features&benefits:

  • Colorimetricassay–Simple,scalableandnon-rADIoactive
  • Compatiblewithalmostanyassaybuffer–Flexibilityoverawiderangeofexistingassays
  • Stablereagentformulation–Longshelflife
  • Uniqueaccelerator–Speedsupcolordevelopment
  • Uniquestabilizer–Suppressesnonenzymaticbackgroundswithacid-labilesubstrates(ATPorGTP)
  • PiColorLock™-Picomplexisverystable–Noprecipitation,resultscanbemeasuredoverseveralhours–idealforHTS
  • Widelinearrange–Noinhibitionofcolordevelopmentbyhighconcentrationsofprotein
  • TheuniquePiColorLockTMStabilizerpreventsbackgrounddriftwithtime

ThePiColorLock™reagentisoftenusedwithunstablesubstrates(e.g.ATP,GTP)thatgiverisetonon-enzymaticbackgrounddriftwithtime.Theuniquestabilizer,providedinthePiColorLock™phosphatedetectionsystem,blocksthisnon-enzymaticbreakdowngeneratingastablelowbackground.Thestablesignalcanthereforebereaduptoseveralhoursafterthereactionhasended.

Figure1.Competitorassaysarebesetwithseveralproblemsincludingreagentprecipitation.ThehighstabilityofPiColorLock™ensureshighstabilityofthecoloreddye-phosphatecomplexes(greencolor).

Figure2.ATPhasbeenincubatedinthreedetectionreagents.Asteadilyrisingbackgroundsignalisseenwithcompetitorreagents,whereasPiColorLock™givesbaselinereadings.

Figure3.PiColorLock™hasalsobeendesignedtohavealargelinearrange,thusreducingtheneedforsampledilution.Competitors’productsarelinearoveramuchnarrowerrangeofconcentrations.

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