| gptkbp:instanceOf | gptkb:protein 
 | 
                        
                            
                                | gptkbp:affects | gptkb:synaptic_plasticity cognitive decline
 lipid metabolism
 response to brain injury
 response to statin therapy
 inflammation
 tau pathology
 blood-brain barrier integrity
 glucose metabolism in brain
 
 | 
                        
                            
                                | gptkbp:aminoAcidChange | C112R 
 | 
                        
                            
                                | gptkbp:associatedWith | gptkb:Alzheimer's_disease 
 | 
                        
                            
                                | gptkbp:discoveredIn | 1970s 
 | 
                        
                            
                                | gptkbp:distinctFrom | gptkb:ApoE2 gptkb:ApoE3
 
 | 
                        
                            
                                | gptkbp:encodedBy | gptkb:APOE_gene 
 | 
                        
                            
                                | gptkbp:foundIn | humans 
 | 
                        
                            
                                | gptkbp:frequency | ~15% worldwide African and Northern European populations
 
 | 
                        
                            
                                | gptkbp:fullName | Apolipoprotein E4 
 | 
                        
                            
                                | gptkbp:hasAllele | ε4 
 | 
                        
                            
                                | gptkbp:hasOMIMEntry | 107741 
 | 
                        
                            
                                | gptkbp:hasPolymorphism | gptkb:rs429358 
 | 
                        
                            
                                | gptkbp:hasUniProtEntry | P02649 
 | 
                        
                            
                                | gptkbp:impact | neuronal repair amyloid-beta aggregation
 cholesterol transport
 
 | 
                        
                            
                                | gptkbp:increasesRiskBy | 3-12 fold for Alzheimer's disease 
 | 
                        
                            
                                | gptkbp:isAlleleOf | gptkb:APOE_gene 
 | 
                        
                            
                                | gptkbp:length | 299 
 | 
                        
                            
                                | gptkbp:locatedOnChromosome | gptkb:chromosome_19 
 | 
                        
                            
                                | gptkbp:lowestFrequencyIn | gptkb:East_Asian_populations 
 | 
                        
                            
                                | gptkbp:molecularWeight | 34 kDa 
 | 
                        
                            
                                | gptkbp:PDB | gptkb:1LE2 
 | 
                        
                            
                                | gptkbp:riskFactor | gptkb:cardiovascular_disease gptkb:late-onset_Alzheimer's_disease
 
 | 
                        
                            
                                | gptkbp:structureType | gptkb:protein 
 | 
                        
                            
                                | gptkbp:usedIn | genetic testing for Alzheimer's risk 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Apo-E gptkb:ApoE
 gptkb:ApoE2
 
 | 
                        
                            
                                | gptkbp:bfsLayer | 8 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | ApoE4 
 |