Synonym:Acylcholineacyl-hydrolase,Cholineesterase,butyryl,PseudocholinesteraseProperties:
RelatedCategories | 3.1.x.xActingonesters,3.x.x.xHydrolases,AnalyticalandIndustrialEnzymes,ApplicationIndex,BiochemicalsandReagents, |
QualityLevel | PREMIUM |
form | lyophilizedpowder |
composition | Protein,≥10% |
solubility | H2O:soluble10 mg/mL |
FeaturedIndustry | DiagnosticAssayManufacturing |
storagetemp. | −20°C |
Description:
AnalysisNote
Proteindeterminedbybiuret
Packaging
1000,5000unitsinglassbottle
UnitDefinition
Oneunitwillhydrolyze1.0?μmoleofbutyrylcholinetocholineandbutyrateperminatpH?8.0at37?°C.Theactivityobtainedusingbutyrylcholineassubstrateis~2.5timesthatobtainedusingacetylcholine.
Physicalform
Highlypurified;containsbuffersalts
Application
SelectiveinhibitionofBChEactivitycanbeusedinthedetectionoforganophosphates.Itsuseinthetreatmentoforganophosphatetoxicityhasbeenexplored.IthasbeenreportedthatthelevelofBChEinhumanbloodcorrelatestothedegreeofprotectionagainstpotentiallytoxicnerveagents.CholinesteraseshavealsobeeninvestigatedfortheirroleinAlzheimer’sdisease.
Biochem/physiolActions
Butyrylcholinesterase(BChE)isaserinehydrolasethatisstructurallysimilartoacetylcholinesterase(AChE),butdiffersinsubstratespecificitiesandinhibitorsensitivities.BChEcan,unlikeAChE,efficientlyhydrolyzelargerestersofcholinesuchasbutyrylcholineandbenzoylcholine.Theenzymeisatetramericglycoproteinwithfourequalsubunits(110kDaeach).TheenzymeisactivatedbyCa2+andMg2+.TheactivityisconstantoverthepHrangeof6.0-8.0.Itisinhibitedbybetaine,nicotine,organophosphates,andcarbamate.
Safety:
PersonalProtectiveEquipment
Eyeshields,Gloves,typeN95(US),typeP1(EN143)respiratorfilter
RIDADR
NONHforallmodesoftransport