Ex parte BLOMBERG et al. - Page 4




              Appeal No. 95-1390                                                                                       
              Application 07/752,639                                                                                   

                     11.   A method of differentiating in a test sample antibodies arising from HTLV-I                 
              infection and antibodies arising from HTLV-II infection comprising analyzing the test                    
              sample in at least four immunoassays that each employ                                                    
                     (I)  at least one synthetic peptide from each of groups a) to d):                                 
                            a) a synthetic peptide comprising 17 to 68 amino acids and at least one                    
              antigenic structure, said peptide derived from the HTLV-I gag gene;                                      
                            b) a synthetic peptide comprising at least 17 amino acids and at least one                 
              antigenic structure, said peptide derived from the HTLV-II gag gene;                                     
                            c) a synthetic peptide comprising at least 17 amino acids and at least one                 
              antigenic structure, said peptide derived from the HTLV-I env gene;                                      
                            d) a synthetic peptide comprising at least 17 amino acids and at least one                 
              antigenic structure, said peptide derived from the HTLV-II env gene; and                                 
                     (ii)  at least one pair of synthetic peptides derived from HTLV-I and HTLV-II gene                
              sequences selected from each of the groups a) plus b), and c) plus d);                                   
                     wherein each of said immunoassays employs a different synthetic peptide selected                  
              from groups a) to d).                                                                                    
                     13.  An immunoassay kit for differentiating in a test sample antibodies arising from              
              HTLV-I infection and antibodies arising from HTLV-II infection comprising one or more                    
              containers holding synthetic peptides for analyzing a test sample in at least four                       
              immunoassays, said synthetic peptides comprising at least one peptide selected from                      
              each of groups a) to d):                                                                                 
                     a)  a synthetic peptide comprising at least 17 amino acids and at least one                       
              antigenic structure, said peptide derived from the HTLV-I gag gene;                                      
                     b)  a synthetic peptide comprising at least 17 amino acids and at least one                       
              antigenic structure, said peptide derived from the HTLV-II gag gene;                                     
                     c)  a synthetic peptide comprising at least 17 amino acids and at least one                       
              antigenic structure, said peptide derived from the HTLV-I env gene; and                                  


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