| UPP2 | 
                        
                            uridine phosphorylase 2 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UPRT | 
                        
                            uracil phosphoribosyltransferase homolog | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCC1 | 
                        
                            ubiquinol-cytochrome c reductase complex assembly factor 1 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCC2 | 
                        
                            ubiquinol-cytochrome c reductase complex assembly factor 2 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCC3 | 
                        
                            ubiquinol-cytochrome c reductase complex assembly factor 3 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCC4 | 
                        
                            ubiquinol-cytochrome c reductase complex assembly factor 4 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCC5 | 
                        
                            ubiquinol-cytochrome c reductase complex assembly factor 5 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCC6 | 
                        
                            ubiquinol-cytochrome c reductase complex assembly factor 6 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCR10P1 | 
                        
                            UQCR10 pseudogene 1 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRB-AS1 | 
                        
                            UQCRB antisense RNA 1 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRBP1 | 
                        
                            ubiquinol-cytochrome c reductase binding protein pseudogene 1 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRBP2 | 
                        
                            ubiquinol-cytochrome c reductase binding protein pseudogene 2 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRBP3 | 
                        
                            ubiquinol-cytochrome c reductase binding protein pseudogene 3 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRC2 | 
                        
                            ubiquinol-cytochrome c reductase core protein 2 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRC2P1 | 
                        
                            ubiquinol-cytochrome c reductase core protein 2 pseudogene 1 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRFS1-DT | 
                        
                            UQCRFS1 divergent transcript | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRFS1P1 | 
                        
                            ubiquinol-cytochrome c reductase, Rieske iron-sulfur polypeptide 1 pseudogene 1 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRFS1P2 | 
                        
                            ubiquinol-cytochrome c reductase, Rieske iron-sulfur polypeptide 1 pseudogene 2 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRFS1P3 | 
                        
                            ubiquinol-cytochrome c reductase, Rieske iron-sulfur polypeptide 1 pseudogene 3 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRHP1 | 
                        
                            ubiquinol-cytochrome c reductase hinge protein pseudogene 1 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRHP2 | 
                        
                            ubiquinol-cytochrome c reductase hinge protein pseudogene 2 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRHP3 | 
                        
                            ubiquinol-cytochrome c reductase hinge protein pseudogene 3 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRHP4 | 
                        
                            ubiquinol-cytochrome c reductase hinge protein pseudogene 4 | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | UQCRQ | 
                        
                            ubiquinol-cytochrome c reductase complex III subunit VII | 
                        
                            0 | 
                        
                    
                    
                
                    
                    
                        
                            | URAD | 
                        
                            ureidoimidazoline (2-oxo-4-hydroxy-4-carboxy-5-) decarboxylase | 
                        
                            0 |