fluorinated residue halogenated tyrosine monofluorinated L-tyrosine 17.989999771118164062 17.99057769775390625 181.0539093017578125 181.1699981689453125 A protein modification that effectively converts an L-tyrosine residue into an L-fluorotyrosine. C 9 F 1 H 8 N 1 O 2 F 1 H -1 Fluoro From Unimod: the citation appears to be correct, but the PMID is not and has been corrected [JSG]. MOD:01225 PSI-MOD Unimod:127 Y artifact fluorophenylalanine replacement of phenylalanine phef