PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1427096-5 1992 The instability of the strA gene was particularly enhanced when the Val51 residue in the middle of S12 protein was replaced by Leu, suggesting enhanced toxicity of the altered S12. Leucine 127-130 aminoglycoside-3''-phosphotransferase Escherichia coli 23-27