>sp|C3N9B3|SYTC_SULIY Threonine--tRNA ligase catalytic subunit OS=Sulfolobus islandicus GN=thrS-cat MESYKPVWLKGAVILAINLIDKGYKPVAVGLGERDFYIDVKSDTSITLDEVKKAINENVL ANVSIENNQIVYKGNKVSIIEDKVSISTNLNPKYFEILNISTHHPNPNEQYVRIRGVAFE TEEQLKDYLSWLEKAEETDHRLIGEKLDLFSFHEEAGSGLVLFHPKGQTIRNELIAFMRE INDSMGYQEVYTSHVFKTDIWKISGHYTLYRDKLIVFNMEGDEYGVKPMNCPAHILIYKS KPRTYRDLPIRFSEFGHVYRWEKKGELYGLLRVRGFVQDDGHIFLREDQLREEIKMLISK TVEVWHKFGFKDDDIKPYLSTRPDESIGSDELWEKATNALISALQESGLKFGIKEKEGAF YGPKIDFEIRDSLGRWWQLSTIQVDFNLPERFKLEYIDKDGIKKRPVMVHRAIYGSIDRF VAILLEHFKGKLPTWLSSVQVRVLPITDEVNEYAEKVLNDMRKRRIRAEIDYAGETLSKR IKNAYDQGVPYILIVGKKEASEGTVTVRARGNIEVRNVKFEKFLELLITEIAQRDVEQTT VKALK