BackgroundInformation | CREBisabetaZIPtranscriptionfactorthatactivatestargetgenesthroughcAMPresponseelements.CREBisabletomediatesignalsfromnumerousphysiologicalstimuli,resultinginregulationofabroadarrayofcellularresponses.WhileCREBisexpressedinnumeroustissues,itplaysalargeregulatoryroleinthenervoussystem.CREBisbelievedtoplayakeyroleinpromotingneuronalsurvival,precursorproliferation,neuriteoutgrowthandneuronaldifferentiationincertainneuronalpopulations.CREBpromotesoutgrowthanddifferentiationasamediatorofNeurotrophinpathways.CREBisabletoselectivelyactivatenumerousdownstreamgenesthroughinteractionswithdifferentdimerizationpartners.CREBisactivatedbyphosphorylationatSer133byvarioussignalingpathwaysincludingErk,Ca2+andstresssignaling. |