Type
Recombinant
Description
ICAMsaremembersoftheIgsuperfamilyofcalcium-independenttransmembraneglycoproteins.ICAM-1 isaligandforthelymphocytefunction-associatedantigen(LFA)andMac-1 integrins,aswellasthemajorhumanrhinovirusreceptor.TheprimaryfunctionofICAM-1 istoprovideadhesionbetweenendothelialcellsandleukocytesafterstressorinjury.ThehumanICAM-1 genecodesfora505 aminoacidtransmembraneglycoproteincontaininga29 aminoacidcytoplasmicdomain,a23 aminoacidtransmembranedomain,anda453 aminoacidextracellulardomain.RecombinantHumanICAM-1 isa49.5 kDaglycoproteincomprisingtheextracellulardomain(453 aminoacidresidues)ofICAM-1. MonomericglycosylatedICAM-1 migratesatanapparentmolecularweightofapproximately72.0–80.0 kDabySDS-PAGEanalysisunderreducingconditions.
AminoAcidSequence
QTSVSPSKVILPRGGSVLVTCSTSCDQPKLLGIETPLPKKELLLPGNNRKVYELSNVQEDSQPMCYSNCPDGQSTAKTFLTVYWTPERVELAPLPSWQPVGKNLTLRCQVEGGAPRANLTVVLLRGEKELKREPAVGEPAEVTTTVLVRRDHHGANFSCRTELDLRPQGLELFENTSAPYQLQTFVLPATPPQLVSPRVLEVDTQGTVVCSLDGLFPVSEAQVHLALGDQRLNPTVTYGNDSFSAKASVSVTAEDEGTQRLTCAVILGNQSQETLQTVTIYSFPAPNVILTKPEVSEGTEVTVKCEAHPRAKVTLNGVPAQPLGPRAQLLLKATPEDNGRSFSCSATLEVAGQLIHKNQTRELRVLYGPRLDERDCPGNWTWPENSQQTPMCQAWGNPLPELKCLKDGTFPLPIGESVTVTRDLEGTYLCRARSTQGEVTRKVTVNVLSPRYE
Source
ChineseHamsterOvaryCells(CHO)
Purity
98%
BIOLOGicalActivity
ICAM-1 supportedtheadhesionofmorethan50%PMA-stimulatedHSB2cellstoplatescoatedat25 µg/mlICAM-1 concentration.
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