si_0688 tRNA_aminoacylation,_Ser Archaeal seryl-tRNA synthetase-related sequence si_0688 tRNA_aminoacylation,_Ser Seryl-tRNA synthetase (EC 6.1.1.11) si_0688 tRNA_aminoacylation,_Ser Seryl-tRNA synthetase (EC 6.1.1.11), archaeal