PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34401545-7 2021 In addition, the screening results of four UNAAs, p-propargyloxy-l-phenylalanine (pPaF), p-azyl-phenylalanine (pAzF), p-acetyl-l-phenylalanine (pAcF), and p-benzoyl-l-phenylalanine (pBpF), showed that o-aaRS and o-tRNA of pPaF had good orthogonality. pacf 144-148 alanyl-tRNA synthetase 1 Homo sapiens 203-207