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. 2009 Mar 26;230(1):1–11. doi: 10.1007/s00425-009-0921-7

Fig. 6.

Fig. 6

Protein sequence comparison of AlCarS with A. thaliana AtTPS21. Amino acid sequences of AlCarS and AtTPS21 are 91% identical. Identical amino acids are shaded in black. Dashes indicate gaps inserted for optimal alignment. The DDXXD motif that is highly conserved among class I terpene synthases and obligatory for catalytic activity is underlined