Grazyna E. Sroga, Fumiko Nemoto, Yoshiyuki Kuchino, Glenn R. Björk: Insertion (sufB) in the anticodon loop or base substitution (sufC) in the anticodon stem of tRNA(Pro)2 from Salmonella typhimurium induces suppression of frameshift mutations.Nucleic Acids Research 20(13): 3463-3469 (1992)