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The Genome Sequence of the Leaf-Cutter Ant Atta cephalotes Reveals Insights into Its Obligate Symbiotic Lifestyle

Figure 3

Predicted arginine biosynthesis pathway map in Atta cephalotes, Camponotus floridanus, Harpegnathus saltator, Apis mellifera, and Nasonia vitripennis.

This pathway in A. cephalotes was found to be missing the two enzymes agininosuccinate synthase (EC and argininosuccinate lyase (EC, which catalyzes the conversion of aspartate and citrulline into arginine. Other enzymes in this pathway include ornithine cabamoyltransferase (EC, arginase (EC and nitric oxide synthase (EC Dotted arrows indicate genes encoding proteins which were not found.

Figure 3