
Cataloguenumber
CYT-1034
Synonyms
Cysteine-richsecretedproteinFIZZ3,ADIposetissue-specificsecretoryfactor,ADSF,C/EBP-epsilon-regulatedmyeloid-specificsecretedcysteine-richprotein,Cysteine-richsecretedproteinA12-alpha-like2,RSTN,XCP1,RETN1,MGC126603,MGC126609.
Introduction
Resistin,aproductoftheRSTNgene,isapeptidehormonebelongingtotheclassofcysteine-richsecretedproteinswhichistermedtheRELMfamily,andisalsodescribedasADSF(AdiposeTissue-SpecificSecretoryFactor)andFIZZ3(FoundinInflammatoryZone).Humanresistincontains108aminoacidsasaprepeptide,anditshydrofobicsignalpeptideiscleavedbeforeitssecretion.Resistincirculatesinhumanbloodasadimericproteinconsistingoftwo92aminoacidpolypeptides,whicharedisulfide-linkedviaCys26.Resistinmaybeanimportantlinkbetweenobesityandinsulinresistance.Mouseresistin,specificallyproducedandsecretedbyadipocyte,actsonskeletalmusclemyocytes,hepatocytesandadipocytesthemselvessothatitreducestheirsensitivitytoinsulin.Steppanetal.havesuggestedthatresistinsuppressestheABIlityofinsulintostimulateglucoseuptake.Theyhavealsosuggestedthatresistinispresentatelevatedlevelsinbloodofobesemice,andisdownregulatedbyfastingandantidiabeticdrugs.Wayetal.,ontheotherhand,havefoundthatresistinexpressionisseverlysuppressedinobesityandisstimulatedbyseveralantidiabeticdrugs.Otherstudieshaveshownthatmouseresistinincreasesduringthedifferentiationofadipocytes,butitalsoseemstoinhibitAdipogenesis.Incontrast,thehumanadipogenicdifferentiationislikelytobeassociatedwithadownregulationofresistingeneexpression.
Description
ResistinMouseRecombinantproducedinE.Coliisanonglycosylated,homodimericpolypeptidechaincontaining2x95aminoacidsandhavingatotalmolecularmassof20.6kDa.
TheResistinispurifiedbyproprietarychromatographictechniques.
Source
EscherichiaColi.
PhysicalAppearance
Formulation
Lyophilizedfromasterilefilteredsolutioncontaining0.1%trifluoroaceticacid(TFA).
Solubility
ItisrecommendedtoreconstitutethelyophilizedResistininsterile18MΩ-cmH2Oataconcentrationof100µg/ml,whichcanthenbefurtherdilutedtootheraqueoussolutions.
Stability
LyophilizedResistinalthoughstableatroomtemperaturefor3weeks,shouldbestoreddesiccatedbelow-18°C.UponreconstitutionResistinMouseshouldbestoredat4°Cbetween2-7daysandforfutureusebelow-18°C.
Forlongtermstorageitisrecommendedtoaddacarrierprotein(0.1%HSAorBSA).
Pleasepreventfreeze-thawcycles.
Purity
Aminoacidsequence
MSSMPLCPIDEAIDKKIKQDFNSLFPNAIKNIGLNCWTVSSRGKLASCPEGTAVLSCSCGSACGSWDIREEKVCHCQCARIDWTAARCCKLQVAS.
SafetyDataSheet
SDS