>sp|Q4FNX4|ASSY_PELUB Argininosuccinate synthase OS=Pelagibacter ubique GN=argG MKSKKKIVLAYSGGLDTSIILKWLQENYDAEVICYTADVGQEIDRKKIIKNAKRLGVKNI IIEDLKDTFVKDYVFPMIRGHAIYEGVYLLGTSIARPLIAKRQIAAAKKFGAYAVSHGST GKGNDQVRFELGYHYFGPKVKIIAPWRIWKLNSRTDLIKYAKKNNIPIPTDKKGAPPFSI DDNLYHTSTEGKVLENPKNSAPEFLFQRTVSPEKAPNKASFVTIGFKNGDPITVNGKKLS PGNLLEKLNNVAGKNGIGRVDLVENRFIGIKSRGVYETPGGTLLMSAHRAIESITLDKET MHKKDEIMPKYAELIYNGYWYSKARFKLQKIVDLKKNKVNGSVKLKLYKGNITIMSRQTK SNAYSMKKVSFEENKTFNKSNVERFINFHKQKLRS