PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6754616-6 1982 TR-b was shown to be a protein; it did not bind to a series of lectins, and by gel filtration and polyacrylamide gel electrophoresis, the molecular weight was determined to be 610,000 to 630,000. polyacrylamide 98-112 T cell receptor beta locus Homo sapiens 0-4