PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12107476-4 2002 In comparison to mice on complete or pair-fed diets, the selenium-deficient mice produced lower concentrations of IgG(1), IgG(2b), IgG(3), and IgM. Selenium 57-65 immunoglobulin heavy constant gamma 2B Mus musculus 122-128