##gff-version 3 P27158 UniProtKB Initiator methionine 1 1 . . . Note=Removed;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P04183 P27158 UniProtKB Chain 2 121 . . . ID=PRO_0000174950;Note=Thymidine kinase%2C cytosolic P27158 UniProtKB Active site 98 98 . . . Note=Proton acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255 P27158 UniProtKB Binding site 26 33 . . . Ontology_term=ECO:0000305;evidence=ECO:0000305 P27158 UniProtKB Binding site 58 60 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P04183 P27158 UniProtKB Binding site 97 100 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P04183 P27158 UniProtKB Modified residue 2 2 . . . Note=N-acetylserine;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P04183 P27158 UniProtKB Modified residue 2 2 . . . Note=Phosphoserine;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P04183 P27158 UniProtKB Modified residue 13 13 . . . Note=Phosphoserine;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P04183 P27158 UniProtKB Non-terminal residue 121 121 . . . .