Figure 2From: The role of gene fusions in the evolution of metabolic pathways: the histidine biosynthesis caseHisA "quarters" alignments. Pairwise alignments of Methanocaldococcus jannaschii (mj) HisA subregions corresponding to "quarters" of barrels (named HisA1, HisA2, HisA3, HisA4). Symbols: *,: correspond to identical or similar aminoacids, respectively.Back to article page