PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2018041-4 1991 This nucleotide alteration results in the substitution of proline for the highly conserved leucine residue at position 285 of the ND1 protein. Leucine 91-98 mitochondrially encoded NADH dehydrogenase 1 Homo sapiens 130-133