. "Raben N"^^ . "Fraser D"^^ . "Amin J"^^ . "Borriello F"^^ . "Horwitz R"^^ . "Plotz P"^^ . "PubMed"^^ . "1549469"^^ . "Nucleic Acids Res 20(5);1075-81"^^ . "Human histidyl-tRNA synthetase: recognition of amino acid signature regions in class 2a aminoacyl-tRNA synthetases."^^ . "1992"^^ . . .