| gptkbp:instanceOf | gptkb:protein 
 | 
                        
                            
                                | gptkbp:alternativeName | Negative factor 
 | 
                        
                            
                                | gptkbp:conservedIn | variable among HIV strains 
 | 
                        
                            
                                | gptkbp:discoveredIn | 1986 
 | 
                        
                            
                                | gptkbp:encodedBy | gptkb:nef_gene 
 | 
                        
                            
                                | gptkbp:foundIn | gptkb:HIV-1 gptkb:HIV-2
 
 | 
                        
                            
                                | gptkbp:function | downregulation of CD4 downregulation of MHC I
 enhancement of viral infectivity
 modulation of T cell signaling
 
 | 
                        
                            
                                | gptkbp:interactsWith | gptkb:PI3K gptkb:AP-2_complex
 gptkb:PACS-1
 gptkb:Src_family_kinases
 
 | 
                        
                            
                                | gptkbp:length | 206 amino acids (HIV-1) 
 | 
                        
                            
                                | gptkbp:locale | gptkb:cytoplasm gptkb:plasma_membrane
 
 | 
                        
                            
                                | gptkbp:locatedOnChromosome | gptkb:HIV_genome 
 | 
                        
                            
                                | gptkbp:molecularWeight | 27-35 kDa 
 | 
                        
                            
                                | gptkbp:notEssentialFor | viral replication in vitro 
 | 
                        
                            
                                | gptkbp:postTranslationalModification | myristoylation 
 | 
                        
                            
                                | gptkbp:requires | high viral load in vivo 
 | 
                        
                            
                                | gptkbp:roleInPathogenesis | immune evasion AIDS progression
 
 | 
                        
                            
                                | gptkbp:structure | contains SH3-binding domain contains acidic cluster
 contains proline-rich region
 
 | 
                        
                            
                                | gptkbp:target | host immune response 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:NEF 
 | 
                        
                            
                                | gptkbp:bfsLayer | 8 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Nef protein (HIV) 
 |