PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28460014-2 2017 These genes are nearly identical, except for 10 single-nucleotide differences and a 5-nucleotide insertion in SMN2. 5-nucleotide 84-96 survival of motor neuron 2, centromeric Homo sapiens 110-114