>5W3Q_1|Chain A|Dihydrofolate reductase|Escherichia coli (strain K12) (83333) MISLIAALAVDRVIGMENAMPWNLPADFAWFKRNTLNKPVIMGRHTWESIGRPLPGRKNIILSSQPGTDDRVTWVKSVDEAIAACGDVPEIMVIGGGRVYEQFLPKAQKLYLTHIDAEVEGDTHFPDYEPDDWESVFSEFHDADAQNSHSYCFEILERR