>sp|P57558|SYC_BUCAI Cysteine--tRNA ligase OS=Buchnera aphidicola subsp. Acyrthosiphon pisum GN=cysS MLKIFNTLTSTKEIFTPIKKNRVNLYVCGVTVYDFCHIGHGRTFVVFDMIVRYLRFSGFQ VKYVRNITDIDDKIISKSTKEKKKINTFTASMIKEMHKDFDLLGISVPDEEPRVTDYIDN IIRIITTLIKKKHAYIHKNGDVIFSIDSDPNYGTLSRQSLTSLESGSRIPLNNMKKNPLD FILWKSSNKEEYSWDSPWGKGRPGWHIECSAITNVFFNNSIDIHGGGSDLLFPHHENERS QSICFNNKSMINFWMHTGMVILNNKKMSKSLGNVYFLRNILKDCDAEVLRYFFLSTHYRH PIYYCEKNLDQAYTSLKYLYTALYDTNPFFNNEEGLNFELEFYNAMNDDFNTPAVFSIFF KIARKINFLKNKDILKTNKFAFRLKYLANNLGFLFQDPKEFLQKKTTLNLLTLKEIQLLI EKRNIARQSKLWQEADNIRKKLMSLDIILEDLPDKTIWRKNKKS