124 



Ec AroD 

 En AroM 

 Sc Arol 

 clone SP3, 

 SP5, SP6 



41 dfDilEwRvDhya 53 

 1075 GsDaVBlRvDlLK 1087 

 1099 GceaVEVRvDhLa 1111 



57 GaDlVKVRlDsLK 



69 



* ** * ** 

 75 kPlLFTfRsakEGGe 89 

 1113 LPiiFTiRtqsqGGr 1127 

 1131 iPiiFTvRtmkqGGn 1145 



85 LPtLFTyRptwEGGg 99 



Fig. 7-2. Preliminary alignment of translated sequences 

 of clone SP3 with established DQT sequences. The deduced N- 

 terminal amino acid sequence of three cDNA clones, SP3, SP5, 

 and SP6 displayed two highly conserved regions with known 

 amino acid sequences from E. coli (AroD) , E. nidulans (AroM) 

 and S. cerevisiae (Arol) . All amino acids showing identity 

 with the SP3 clone in each group are in caps. Amino acids 

 conserved in all four proteins are noted with an asterisk. 



