PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17965621-8 2006 Though the LEP CpG island is generally unmethylated in both human and mouse sperm, depletion of CG sites within the mouse promoter indicates occasional presence of methylated Lep epialleles in the germline. cysteinylglycine 96-98 leptin Mus musculus 175-178