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Prospec/FGF 21 Rat/Fibroblast Growth Factor-21 Rat Recombinant/20µg/CYT-130-20µg-20µg
Cataloguenumber
CYT-130
Synonyms
Introduction
TheFGFsareafamilyofmorethan20small(~17–26kDa)secretedpeptides.TheinitialcharacterizationoftheseproteinsfocusedontheirABIlitytostimulatefibroblastproliferation.ThismitogenicactivitywasmediatedthroughFGFreceptors(FGFRs)1,2,or3.Afourthcloselyrelatedtyrosinekinasereceptor(FGFR4)wasabletobindtheFGFsbutdidnotleadtoamitogenicresponse.FGFsmodulatecellularactivityviaatleast5distinctsubfamiliesofhigh-affinityFGFreceptors(FGFRs):FGFR-1,-2,-3,and-4,allwithintrinsictyrosinekinaseactivityand,exceptforFGFR-4,multiplespliceisoforms,andFGFR-5,whichlacksanintracellularkinasedomain.ThereisgrowingevidencethatFGFRscanbeimportantforregulationofglucoseandlipidhomeostasis.TheoverexpressionofadominantnegativeformofFGFR-1incellsleadstodiabetesinmice,whichthusimpliesthatproperFGFsignalingisrequiredfornormal?cellfunctionandglycemiamaintenance.FGFR-2appearstobeakeymoleculeduringpancreaticdevelopment.Moreover,FGFR-4hasbeenimplicatedincholesterolmetabolismandbileacidsynthesis.FGF-19,hasbeenshowntocauseresistancetodiet-inducedobesityanddesensitizationandtoimproveglucose,andlipidprofilesindiabeticrodents.Sincetheseeffects,atleastinpart,aremediatedthroughtheobservedchangesinmetabolicrates,FGF-19canbeconsideredasaregulatorofenergyexpenditure.FGF-21ispreferentiallyexpressedinliver,butanexactknowledgeofFGF-21bioactivityanditsmodeofactionhavebeenlackingtodate.FGF-21isapotentactivatorofglucoseuptakeonADIpocytes,protectsanimalsfromdiet-inducedobesitywhenoverexpressedintransgenicmice,andlowersbloodglucoseandtriglyceridelevelswhentherapeuticallyadmiNISTeredtodiabeticrodents.
Description
Source
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Formulation
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Aminoacidsequence
BIOLOGicalActivity
TheED50determinedbyacellproliferationassayusingmurineNIH/3T3cellsislessthan700ng/ml,correspondingtoaspecificactivityof>1.4×1000IU/mginthepresenceof5µg/mlofrMuKlotho-beta.
SafetyDataSheet
SDS
Usage
Prospec"sproductsarefurnishedforLABORATORYRESEARCHUSEONLY.Theproductmaynotbeusedasdrugs,agriculturalorpesticidalproducts,foodadditivesorhouseholdchemicals.