Immunogen sequence: DRASKADVQK RVLEKTKQFI DSNPNQPLVI LEMESGASAK ALNEALKLFK MHSPQTSAML FTVDNEAGKI TCLCQVPQNA ANRGLKASEW VQQVSGLMDG KGGGKD Highest antigen sequence identity to the following orthologs: Mouse - 98%, Rat - 98%. The human alanyl-tRNA synthetas