>sp|B1XRS6|ASSY_POLNS Argininosuccinate synthase OS=Polynucleobacter necessarius subsp. necessarius GN=argG MSDIKKAVLAYSGGLDTSVILKWLQDTYGCEIVTFTADFGQGEELEPARAKALQFGIKPE NIFIDDLCEEFVRDFVFPMFRANTIYEGEYLLGTSIARPLIAKRQIEIARLTGADSVSHG ATGKGNDQVRFELGYYALEPGIKVIVPWREWDLLSREKLMAYAEKHGIPVEMRHKQGGSP YSMDANLLHISYEGRHLENPNAEAEESMWRWTVSPEKAPDAPEIIEIEFKSGDPVAINGK AYKPHELLAELNRIGGMHGIGRLDLVENRFVGMKSRGCYETPGGTILLKAHRGIESITLD REVAHLKDDLMPRYASLIYNGLWWAPERLALQTLIDHTQQAVNGIVRLKLYKGSVSVISR DSANTLFDQNIATFDDDGGAYNQADAGGFIKLNALRMRIAETARRKRAKK