VISSER et al v. HOFVANDER et al - Page 34




          Interference 103,579                                                        
               by restriction and cDNA probes, where the 5' and 3' end                
               of the GBSS gene has been determined more accurately                   
               (Fig. 2).  Sequence determination according to Sanger                  
               et al, 1977 of the GBSS gene has been made on subclones                
               from pSw and pSx in M13mp18 and mp19 as well as pUC19                  
               starting around the 5' end (see SEQ ID No. 5).                         
                    The promoter region has been determined as a Bg1II[sic            
               BgIII]-NsiI fragment (see SEQ ID No. 4).  Transcription and            
               translation start has been determined at an overlapping                
               Bg1II[sic BgIII]-HindIII fragment.  The terminator region              
               has in turn been determined at a SpeI-HindIII fragment.                
          The specification of Hofvander’s involved application further               
          teaches that “[t]he GBSS gene fragments according to the                    
          invention (see SEQ ID Nos 1, 2 and 3, and Fig. 2) were determined           
          in the following manner . . .” (HR 282, l. 26-28):                          
                    The restriction of pSw with NsiI and HindIII gives                
               fragment I (SEQ ID No. 1) which subcloned in pUC19 is                  
               called 19NH35.  Further restriction of 19NH35 with HpaI-               
               SstI gives a fragment containing 342 bp of the gene                    
               according to the invention.  This fragment comprises                   
               leader sequence, translation start and the first 125 bp                
               of the coding region.                                                  

                    The restriction of pSm with HpaI and NsiI gives                   
               fragment II (SEQ ID No. 2) which subcloned in pJRD184                  
               (Heusterpreute et al, 1987) is called pJRDmitt.  Further               
               restriction of pJRDmitt with HpaI-SstI gives a fragment                
               containing 2549 bp of the GBSS gene according to the                   
               invention.  This fragment comprises exons and introns                  
               from the middle of the gene.                                           
                    The restriction of pSx with SstI and SpeI gives                   
               fragment III (SEQ ID No. 3) which subcloned in                         
               pBluescript (Melton et al, 1984) is called pBlue3'.                    
               Further restriction of pBlue3' with BamHI-SstI gives a                 
               fragment containing 492 bp of the GBSS gene according                  
               to the invention.  This fragment comprises the last                    
               intron and exon, translation end and 278 bp of trailer                 
               sequence.                                                              
                                        -34-                                          





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