>4RRI_1|Chain A|Probable threonine--tRNA ligase 2|Aeropyrum pernix (272557) MRLLYLHADRFEYKTVKPALKNPPDPPGEASFGEALVVFTTVEDGDGPQTVMYAASDIASHSSRLKVTTVILYPYAHLSSRLAKPMAAHKRLIELEGALRTKFPGHVHRAPFGWYMSFSIACKGHPLAELSRSFTE