UniProtSummary | FUNCTION:SwissProt:Q6UVK1#Proteoglycanplayingaroleincellproliferationandmigrationwhichstimulatesendothelialcellsmotilityduringmicrovascularmorphogenesis.Mayalsoinhibitneuriteoutgrowthandgrowthconecollapseduringaxonregeneration.Cellsurfacereceptorforcollagenalpha2(VI)whichmayconfercellsabilitytomigrateonthatsubstrate.BindsthroughitsextracellularN-terminusgrowthfactors,extracellularmatrixproteasesmodulatingtheiractivity.MayregulateMPP16-dependentdegradationandinvasionoftypeIcollagenparticipatinginmelanomacellsinvasionproperties.Maymodulatetheplasminogensystembyenhancingplasminogenactivationandinhibitingangiostatin.FunctionsalsoasasignaltransducingproteinbybindingthroughitscytoplasmicC-terminusscaffoldingandsignalingproteins.MaypromoteretractionfiberformationandcellpolarizationthroughRhoGTPaseactivation.Maystimulatealpha-4,beta-1integrin-mediatedadhesionandspreadingbyrecruitingandactivatingasignalingcascadethroughCDC42,ACK1andBCAR1.MayactivateFAKandERK1/ERK2signalingcascades.
SIZE:2322aminoacids;250497Da
SUBUNIT:InteractswiththefirstPDZdomainofMPDZ.InteractswithPRKCA.BindsTNC,laminin-1,COL5A1andCOL6A2.InteractswithPLGandangiostatin.BindsFGF2andPDGFA.InteractswithGRIP1,GRIP2andGRIA2.FormsaternarycomplexwithGRIP1andGRIA2(Bysimilarity).InteractswithLGALS3andtheintegrincomposedofITGB1andITGA3.InteractswithITGA4throughitschondroitinsulfateglycosaminoglycan.InteractswithBCAR1,CDC42andACK1.InteractswithMMP16.
SUBCELLULARLOCATION:Apicalcellmembrane;Single-passtypeImembraneprotein(Bysimilarity).Cellprojection,lamellipodium(Bysimilarity).Note=LocalizedattheapicalplasmamembraneitrelocalizestothelamellipodiaofastrocytomauponphosphorylationbyPRKCA.Localizestotheretractionfibers.Localizestotheplasmamembraneofoligodendrocytes(Bysimilarity).
TISSUESPECIFICITY:Detectedonlyinmalignantmelanomacells.
PTM:N-glycosylated(Bysimilarity).&O-glycosylated;containsglycosaminoglycanchondroitinsulfatewhicharerequiredforproperlocalizationandfunctioninstressfiberformation(Bysimilarity).InvolvedininteractionwithMMP16andITGA4.&PhosphorylationbyPRKCAregulatesitssubcellularlocationandfunctionincellmotility(Bysimilarity).
SIMILARITY:SwissProt:Q6UVK1##Contains15CSPG(NG2)repeats.&Contains2lamininG-likedomains.
MISCELLANEOUS:ValuableMarkerforseveralincompletelydifferentiatedprecursorcells. |