Immunogen sequence: SKEYTLDVYR LSSVVTQHDS KKAGAEVVKQ VEHPLLSGLL YPGLQALDEE YLKVDAQFGG IDQRKIFTFA EKYLPALGYS KRVHLMNPMV PGLTGSKMSS SEEESKIDLL DRKEDVKK. Aminoacyl-tRNA synthetases catalyze the aminoacylation of tRNA by their cognate amino acid. Because of