PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 5124778-11 1971 The carbohydrate moiety consisted of 0.4g of hexose, 0.77g of hexosamine and 0.18g of sialic acid/100g of vitellogenin. N-Acetylneuraminic Acid 86-97 a1-a Xenopus laevis 106-118