Fig. 2From: Reduced free asparagine in wheat grain resulting from a natural deletion of TaASN-B2: investigating and exploiting diversity in the asparagine synthetase gene family to improve wheat qualityStructural characteristics of the TaASN2 genes and proteins from Cadenza. a. Diagrammatic representation of the exon/intron structures of the TaASN-A2, TaASN-B2 and TaASN-D2 homeologues [15]. Open arrows indicate exons and lines indicate introns. b. Diagram representing the structure and similarity of the proteins encoded by each TaASN2 homeologue, showing the glutamine amidotransferases (GATase) domain (amino acids approx. 2–185) and asparagine synthetase (ASNS) domain (amino acids approx. 210–450). Residues that differ across all three homeologues are highlighted in yellow, whereas residues that differ in a single homeologue are highlighted in redBack to article page