PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15039928-14 2004 Sialylation of the 180-kDa NCAM isoform begins to decrease on day 12.5 in Sp(2H) homozygotes. sp(2h) 74-80 neural cell adhesion molecule 1 Mus musculus 27-31