Type
Recombinant
Description
PDGFsaredisulfide-linkeddimersconsistingoftwo12.0–13.5 kDapolypeptidechains,designatedPDGF-A andPDGF-Bchains.ThethreenaturallyoccurringPDGFs,PDGF-AA,PDGF-BBandPDGF-AB,arepotentmitogensforavarietyofcelltypes,includingsmoothmusclecells,connectivetissuecells,boneandcartilagecells,andsomebloodcells.ThePDGFsarestoredinplateletα-granules,andarereleaseduponplateletactivation.ThePDGFsareinvolvedinanumberofBIOLOGicalprocesses,includinghyperplasia,chemotaxis,embryonicneurondevelopment,andrespiratorytubuleepithelialcelldevelopment.TwodistinctsignalingreceptorsusedbyPDGFshavebeenidentifiedandnamedPDGFR-αandPDGFR-β.PDGFR-αisahigh-affinityreceptorforeachofthethreePDGFforms.Ontheotherhand,PDGFR-βinteractswithonlyPDGF-BBandPDGF-AB.RecombinantHumanPDGF-BBisa24.3 kDadisulfide-linkedhomodimeroftwoβchains(218 totalaminoacids). .
AminoAcidSequence
SLGSLTIAEPAMIAECKTRTEVFEISRRLIDRTNANFLVWPPCVEVQRCSGCCNNRNVQCRPTQVQLRPVQVRKIEIVRKKPIFKKATVTLEDHLACKCETVAAARPVT
Source
E.coli
Purity
98%
BiologicalActivity
Determinedbythedose-dependentstimulationoftheproliferationofBalb/c3T3cells.TheexpectedED50forthiseffectis1.0–3.0 ng/ml.
Endotoxin
Endotoxinlevelis<0.1 ng/μgofprotein(<1EU/μg).
Reconstitution
Centrifugethevialpriortoopening.Reconstituteinwatertoaconcentrationof0.1–1.0 mg/ml.Donotvortex.Forextendedstorage,itisrecommendedtofurtherdiluteinabuffercontainingacarrierprotein(example0.1%BSA)andstoreinworkingaliquotsat –20°Cto –80°C.
Storage/Expiration
–20°C
