
Description:
ProductName:MouseandRatLeptinELISA
#ofSamples:1X96Assays
IntendedUse:The40-055-200005MouseandRatLeptinELISAisasandwichenzymeimmunoassayforthequantitativemeasurementofmouseand/orratleptin.
Introduction:Leptinisaproteinhormonewithimportanteffectsinmetabolismandregulatingbodyweight.Itisasingle-chain16kDaproteinconsistingof146aminoacidresiduesandencodedbytheobese(ob)gene.
LeptinisexpressedpredominantlybyADIpocytes,smallamountsofleptinarealsosecretedbycellsintheepitheliumofstomachandintheplacenta.Leptin´seffectonbodyweightismediatedthrougheffectsonhypothalamiccenters,whereleptinreceptorsarehighlyexpressed.Leptinhasadualaction,itdecreasestheappetiteandincreasesenergyconsumption.
Amutationsintheobgeneofleptinorinthegeneofleptinreceptorcauseshyperphagia,reducedenergyexpenditure,andsevereobesityintheob/obmice.
Obgeneknockoutmicearealsocharacterizedbyseveralmetabolicabnormalitiesincludinghyperglucocorticoidemia,hyperglycaemia,hyperinsulinemiaandinsulinresistance.
Whenob/obmicearetreatedwithinjectionsofleptin,theylosetheirexcessfatandreturntonormalbodyweight.
Studieshaveshownthatleptinappearstobeasignificantregulatorofreproductivefunction.Inaddition,leptinisinvolvedinbonemetabolismandplaysasignificantroleasanimmunomodulator.
Areasofinvestigation:
Energymetabolismandbodyweightregulation
Principleofthetest:IntheGenWayMouseandRatLeptinELISA,Standards,QualityControlsandsamplesareincubatedinmicroplatewellspre-coatedwithanti-mouseleptinantibody.After60minutesincubationandwashing,biotin-labelledpolyclonalanti-mouseleptinantibodyisaddedtothewellsandincubatedwithimmobilizedantibody-leptincomplexfor60minutes.Afteranotherwashing,streptavidin-HRPconjugateisadded.After30minutesincubationandthelastwashingstep,theremainingconjugateisallowedtoreactwiththesubstratesolution(TMB).Thereactionisstoppedbyadditionofacidicsolutionandabsorbanceoftheresultingyellowproductismeasuredspectrophotometricallyat450nm.Theabsorbanceisproportionaltotheconcentrationofleptin.AstandardcurveisconstructedbyplottingabsorbancevaluesagainstconcentrationsofStandards,andconcentrationsofunknownsamplesaredeterminedusingthisstandardcurve.
StorageandStABIlity:250?lofeachstandardissufficienttorunthestandardcurveinduplicates.Reconstitutedstandards(4000pg/ml)canbealiquotedandstoredat-20Cuntilnextuse(upto3months).Avoidrepeatingfreezing/thawingcycles.
ProductName:MouseandRatLeptinELISA
Function:Mayfunctionaspartofasignalingpathwaythatactstoregulatethesizeofthebodyfatdepot.AnincreaseinthelevelofLEPmayactdirectlyorindirectlyontheCNStoinhibitfoodintakeand/orregulateenergyexpenditureaspartofahomeostaticmechanismtomaintainconstancyoftheadiposemass.
Subunit:InteractswithSIGLEC6.
SubcellularLocation:Secreted.
Disease:DefectsinLEPmaybeacauseofautosomalrecessiveobesity[MIM:601665].
Similarity:Belongstotheleptinfamily.
AdditionalInformation:
Name | MouseandRatLeptinELISA |
---|---|
RelatedProductNames | MouseandRatLeptinELISAKitELISAKit;Obesityfactor;ObeseproteinOB;OBSMouseandRatLeptinELISALEP |
NCBIAccNumber | NP_000221.1 |
MolecularWeight | 18641 |
SwissProtNumber | P41159 |
IntendedUse | ResearchUseOnly |