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Structure of rat ACS4 cDNA. (A) Deduced amino acid sequence of rat ACS4 cDNA. Amino acids are numbered on the right. (B) Schematic comparison of the amino acids in rat ACS4 with the other three known rat ACSs. The percentage amino acid identities are given between each region of adjacent proteins: rat ACS1 (6) vs. rat ACS2 (7), rat ACS2 vs. rat ACS3 (8), and rat ACS3 vs. rat ACS4. Luciferase-like regions 1 (LR1) and 2 (LR2) are indicated by solid and hatched boxes, respectively.
