Cataloguenumber
CHM-355
Synonyms
Smallinduc
IBLecytokineA8,CCL8,Monocytechemotacticprotein2,MCP-2,Monocytechemoattractantprotein2,HC14,chemokine(C-Cmotif)ligand8,MCP2,SCYA8,SCYA10,AB023418,1810063B20Rik.
Introduction
Chemokine(C-Cmotif)ligand8(CCL8)isasmallcytokinebelongingtotheCCchemokinefamilythatwasoncecalledmonocytechemotacticprotein-2(MCP-2).TheCCL8proteinisproducedasaprecursorcontaining109aminoacids,whichiscleavedtoproducematureCCL8containing75aminoacids.ThegeneforCCL8isencodedby3exonsandislocatedwithinalargeclusterofCCchemokinesonchromosome17q11.2inhumans.MCP-2ischemotacticforandactivatesamanydifferentimmunecells,includingmastcells,eosinophilsandbasophils,(thatareimplicatedinallergicresponses),andmonocytes,Tcells,andNKcellsthatareinvolvedintheinflammatoryresponse.CCL8elicitsitseffectsbybindingtoseveraldifferentcellsurfacereceptorscalledchemokinereceptors.ThesereceptorsincludeCCR1,CCR2BandCCR5.
Description
MonocyteChemotacticProtein-2MouseRecombinantproducedinE.Coliisanon-glycosylated,Polypeptidechaincontaining74aminoacidsandhavingamolecularmassof8507Dalton.TheMCP-2ispurifiedbyproprietarychromatographictechniques.
Source
EscherichiaColi.
PhysicalAppearance
SterileFilteredWhitelyophilized(freeze-dried)powder.
Formulation
Lyophilizedfroma0.2µmfilteredconcentrated(1.0mg/ml)solutionin20mMPB,pH7.4,150mMNaCl.
Solubility
ItisrecommendedtoreconstitutethelyophilizedCCL8insterile18MΩ-cmH2Onotlessthan100µg/ml,whichcanthenbefurtherdilutedtootheraqueoussolutions.
LyophilizedMCP-2althoughstableatroomtemperaturefor3weeks,shouldbestoreddesiccatedbelow-18°C.UponreconstitutionCCL8shouldbestoredat4°Cbetween2-7daysandforfutureusebelow-18°C.Forlongtermstorageitisrecommendedtoaddacarrierprotein(0.1%HSAorBSA).Pleasepreventfreeze-thawcycles.
Purity
Greaterthan97.0%asdeterminedby:(a)AnalysisbyRP-HPLC.(b)AnalysisbySDS-PAGE.
Aminoacidsequence
GPDKAPVTCCFHVLKLKIPLRVLKSYERINNIQCPMEAVVFQTKQGMSLCVDPTQKWVSEYMEILDQKSQILQP.
Determinedbyitsabilitytochemoattracthumanperipheralbloodmonocytesusingaconcentrationrangeof10-100ng/mlcorrespondingtoaSpecificActivityof10,000-100,000IU/mg.
SafetyDataSheet
Usage
Prospec"sproductsarefurnishedforLABORATORYRESEARCHUSEONLY.Theproductmaynotbeusedasdrugs,agriculturalorpesticidalproducts,foodadditivesorhouseholdchemicals.