| 
                                    
                                        gptkbp:instanceOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:monoclonal_antibody
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:abbreviation
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:IgG
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:binds
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Fc_receptors
                                        
                                         
                                    
                                        
                                            
                                            antigens
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:canActivate
                                    
                                 | 
                                
                                    
                                        
                                            
                                            classical complement pathway
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:contains
                                    
                                 | 
                                
                                    
                                        
                                            
                                            two heavy chains
                                        
                                        
                                         
                                    
                                        
                                            
                                            two light chains
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:crosses
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:placenta
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:decreasedIn
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:nephrotic_syndrome
                                        
                                         
                                    
                                        
                                            gptkb:immunodeficiency
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:discoveredBy
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Elvin A. Kabat
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:doesNotActivate
                                    
                                 | 
                                
                                    
                                        
                                            
                                            alternative complement pathway
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:domain
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Fab region
                                        
                                        
                                         
                                    
                                        
                                            
                                            Fc region
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:elevatedIn
                                    
                                 | 
                                
                                    
                                        
                                            
                                            autoimmune diseases
                                        
                                        
                                         
                                    
                                        
                                            
                                            chronic infections
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:encodedBy
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:IGHG_gene_family
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:firstDescribed
                                    
                                 | 
                                
                                    
                                        
                                            
                                            1950s
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:foundIn
                                    
                                 | 
                                
                                    
                                        
                                            
                                            blood
                                        
                                        
                                         
                                    
                                        
                                            
                                            extracellular fluid
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:function
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:immune_response
                                        
                                         
                                    
                                        
                                            
                                            opsonization
                                        
                                        
                                         
                                    
                                        
                                            
                                            activation of complement system
                                        
                                        
                                         
                                    
                                        
                                            
                                            neutralization of pathogens
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:halfLife
                                    
                                 | 
                                
                                    
                                        
                                            
                                            about 21 days
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:hasAllotype
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Gm marker
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:measures
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:ELISA
                                        
                                         
                                    
                                        
                                            
                                            immunoturbidimetry
                                        
                                        
                                         
                                    
                                        
                                            
                                            nephelometry
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:molecularWeight
                                    
                                 | 
                                
                                    
                                        
                                            
                                            150 kDa
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:mostAbundantAntibodyIn
                                    
                                 | 
                                
                                    
                                        
                                            
                                            human serum
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:notableFor
                                    
                                 | 
                                
                                    
                                        
                                            
                                            longest half-life among immunoglobulins
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:percentageOfSerumAntibodies
                                    
                                 | 
                                
                                    
                                        
                                            
                                            ~75%
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:presentIn
                                    
                                 | 
                                
                                    
                                        
                                            
                                            all mammals
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:producedBy
                                    
                                 | 
                                
                                    
                                        
                                            
                                            plasma cells
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:provides
                                    
                                 | 
                                
                                    
                                        
                                            
                                            passive immunity to fetus
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:role
                                    
                                 | 
                                
                                    
                                        
                                            
                                            secondary immune response
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:structure
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Y-shaped
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:subclassOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:IgG2
                                        
                                         
                                    
                                        
                                            gptkb:IgG3
                                        
                                         
                                    
                                        
                                            gptkb:immune_response
                                        
                                         
                                    
                                        
                                            gptkb:IgG1
                                        
                                         
                                    
                                        
                                            gptkb:IgG4
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:target
                                    
                                 | 
                                
                                    
                                        
                                            
                                            autoimmune diseases
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:usedAs
                                    
                                 | 
                                
                                    
                                        
                                            
                                            marker for past infection
                                        
                                        
                                         
                                    
                                        
                                            
                                            therapeutic antibody
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:usedIn
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:immunotherapy
                                        
                                         
                                    
                                        
                                            
                                            diagnostic tests
                                        
                                        
                                         
                                    
                                        
                                            
                                            intravenous immunoglobulin therapy (IVIG)
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsParent
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Protein_A
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsLayer
                                    
                                 | 
                                
                                    
                                        
                                            
                                            7
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        https://www.w3.org/2000/01/rdf-schema#label
                                    
                                 | 
                                
                                    
                                        
                                            
                                            immunoglobulin G
                                        
                                        
                                         
                                    
                                 |