Ex Parte Johnson - Page 6


              Appeal No. 2006-0484                                                                Page 6                
              Application No. 09/657,729                                                                                

                     Appellant also argues that Higgins “describes a method for electrochemical                         
              assisted biosynthesis and has nothing to do with analytical studies or determinations.                    
              . . . [T]he claimed step of ‘analyzing the sam[pl]e using a detection scheme . . .’ is not                
              found in Higgins.”  Appeal Brief, page 7.  That is, “[t]he analyses or ‘detection means’                  
              employed by Higgins are performed only in support of verifying and studying the                           
              heterogeneous electron transfer reaction between the enzyme and the electrode. . . .                      
              [T]he application is bioelectrochemical synthesis which has nothing to do with the                        
              proposed invention.  No mention is made of poising the electrode at various potentials                    
              . . . and using an independent detection means (sensitive to the extent of interaction                    
              between target and sample) in order to study the potential or redox dependence of                         
              interactions between a sample and target species.”  Id.                                                   
                     As we understand it, Appellant’s argument is that Higgins’ method does not                         
              anticipate the claims because the redox environment of the sample is controlled in                        
              Higgins for the purpose of generating reducing equivalents to enhance the activity of the                 
              luciferase enzyme, and in the claimed method the redox environment is controlled in                       
              order to determine whether it affects the interaction of a target and a sample.  We do                    
              not agree that the difference, if any, between the purpose of Higgins' experiment and                     
              that of Appellant’s disclosed method distinguishes claims 1 and 51 from the prior art.                    
                     Luciferase-mediated light production depends on interaction between several                        
              components:  luciferase, decyl aldehyde, molecular oxygen (O2), and a source of                           
              reducing equivalents (NADH normally, free electrons in Higgins’ system).  See Higgins,                    
              col. 6, lines 39-42 and 55-56.  Thus, Higgins’ detection of the light that results from the               
              action of luciferase on its substrate (decyl aldehyde) in the presence of other reactants                 





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