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Other_recombinant_protein >
Prospec/ICOS Human/Inducible T Cell Costimulator 4 Human Recombinant/1µg/PRO-2534-1µg-1µg

Cataloguenumber
PRO-2534
Synonyms
InducIBLeTCellCostimulator,Activation-InducibleLymphocyteImmunomediatoryMolecule,InducibleT-CellCostimulator,AILIM,InducibleT-CellCo-Stimulator,InducibleCostimulator,CD278Antigen,CD278,CVID1.
Introduction
ICOS(inducibleT-cellcostimulatory)belongstotheCD28familyofimmune-assistedstimulatoryreceptors.ICOSformshomodimersandtakesasignificantpartinimmuneresponses,cell-cellsignaling,aswellasregulationofcellproliferation.TheinteractionofB7-H2/ICOStakesavitalroleinT-celldifferentiation,T-BcellinteractioninadditiontohumoralimmuneresponseisessentialfortheformationofreproductivecentersaswellastheproductionofcytokineIL-4.Moreover,ICOSismoreeffectiveininducingIL-10production,acytokinewhichisimportantfortheinhibitoryfunctionofTregulatorycells.TheICOS-B7RP-1andB7-1/B7-2-CD28/CTLA-4pathwaysofferasignificantsecondsignalwhichcanregulatetheinhibition,activationandfineregulationofT-lymphocyteresponses.ICOSstimulatestheproductionofTh1andTh2cytokines,howeveritcanalsoparticipateinthegenerationofTh2cells.
Description
ICOSproducedinSf9Baculoviruscellsisasingle,glycosylatedpolypeptidechaincontaining362aminoacids(21-140a.a.)andhavingamolecularmassof40.8kDa.(MolecularsizeonSDS-PAGEwillappearatapproximately40-57kDa).ICOSisexpressedwithan242aminoacidHistagatC-Terminusandpurifiedbyproprietarychromatographictechniques.
Source
PhysicalAppearance
Formulation
ICOSproteinsolution(0.25mg/ml)contains20mMMESbuffer(pH5.5),40%glycerol,2mMDTTand1mMEDTA0.1MNaCl.
StABIlity
Purity
Greaterthan90.0%asdeterminedbySDS-PAGE.
Aminoacidsequence
ADPEINGSANYEMFIFHNGGVQILCKYPDIVQQFKMQLLKGGQILCDLTKTKGSGNTVSIKSLKFCHSQLSNNSVSFFLYNLDHSHANYYFCNLSIFDPPPFKVTLTGGYLHIYESQLCCQLKLEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGKHHHHHH
SafetyDataSheet
SDS