Glutamin sintetase
caption: Glutamine Synthetase Catalyzed Reaction.
caption: Active site between two monomers of glutamine synthetase from Salmonella typhimurium . Cation binding sites are yellow and orange; ADP is pink; phosphinothricin is blue. [1]
caption: 12-subunit enzyme glutamine synthetase from Salmonella typhimurium . [2]