PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10485250-4 1999 However, the modified 14C-leucine assay provides a valid measure of MBP"s cytotoxicity and may be useful for analyses of "sticky" cytotoxins. 14c-leucine 22-33 myelin basic protein Homo sapiens 68-71