PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 629857-2 1978 However, treatments of CEA with 2-hydroxy-5-nitrobenzyl bromide and tetranitromethane, both in the presence of guanidine HCl, caused a large reduction in binding capacity. Tetranitromethane 68-85 CEA cell adhesion molecule 3 Homo sapiens 23-26