Description：Recombinant Glutamine Synthetase from E.coliForm：White lyophilized powderAlternative Names：EC 6.3.1.2; glutamate--ammonia ligase; L-glutamine synthetase CAS Number：9023-70-5Purity：>90%Application：One unit is defined as the amount of enzyme will convert 1 micromole L-glutamate to L-glutamine in 15 min at pH 7.1, 37 °C.Storage/Stability：Shipped at 4°C. Store at -20°C for 2 years.