PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9796859-2 1998 Of special interest is the finding that amino acid substitutions of the Tat(1-9) peptide (MDPVDPNIE) in position 5 with S-isoleucine and in position 6 with S-leucine led to peptides with strongly reduced inhibitory activity suggesting differences in the solution conformation of the three analogues. Leucine 156-165 solute carrier family 26 member 8 Homo sapiens 72-79