PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3928628-5 1985 Exposure of the double-labeled thymidylate synthetase-FdUMP-[2-14C,7,9,3",5"-3H]5,10-CH2H4folate complex to the Bratton-Marshall reaction resulted in 16% cleavage of the C-9, N-10 bond with release solely of p-aminobenzoylglutamate, whereas all of the carbon-14-labeled pterin residue remained covalently bound to the protein. Pterins 270-276 complement C9 Homo sapiens 170-173