>sp|O41156|THYX_PBCV1 Probable flavin-dependent thymidylate synthase OS=Paramecium bursaria Chlorella virus 1 GN=A674R MSAKLISVTKPVVEGVNTAEELIAYAARVSNPENQINNKTASGLLKYCIRHKHWSIFETA FMTLELKTSRGIAAQVLRHRSFHFQEFSQRYASVMETPPPHQARFQDHKNRQNSLDTVPE DDQTWWATEQEKLYAQSMELYNKALEKGIAKECARFILPLSTPTTIYMSGTIRDWIHYIE LRTSNGTQREHIDLANACKEIFIKEFPSIAKALDWV