Synthetase U-turns.
D000494:Allosteric Regulation; D000604:Amino Acyl-tRNA Synthetases / Q000378:metabolism*; D004926:Escherichia coli / Q000378:metabolism; D012343:RNA, Transfer / Q000378:metabolism*
D012343:RNA, Transfer; D000604:Amino Acyl-tRNA Synthetases