>sp|B3DQG7|SYS_BIFLD Serine--tRNA ligase OS=Bifidobacterium longum GN=serS MLDIQFIREHTDIVKESQRKRGESVELVDEVLSSDTARREALKAFEEARAQQKEIGKKVA SAPADEKAKLIAETKELSQKVSEYKSKADSAAEEYTTAMWKLSNIVEPEAPEGGEDDYVV VKKVGQIRDFAAEGFEPKDHLTLGTGVAGIDMRRGVKVGGSRFYFLRGQVARMQIAMLTM AVDQAEEHGFTLAITPTLVRPEVMRGTGFLNSHADEIYRLREPDDQYLVGTSEVALAGMH ENEILDLGNGPLRYCGWSSCYRREAGAAGKDTSGIIRVHQFDKVEMFVYAKQEDSYKEHE HLLAMEQEMLAKVEVPYRIIDTAAGDLGSSAARKFDCEAWVPTQGRYRELTSTSNCTEYQ ARRLNIRERMEDGGTRPVSTLNGTLATTRWLVAIMENHQQKDGSIEIPQAMRAYMGGKEV IEPTKWEA