>tr|Q1RGF0|Q1RGF0_ECOUT dihydrofolate reductase OS=Escherichia coli GN=folA
MRRVQGESVDSPAEYKIFLNIILAPVDDGLRFTYSGDNFFYREISMISLIAALAVDRVIG
MENAMPWNLPADLAWFKRNTLNKPVIMGRHTWESIGRPLPGRKNIILSSQPGTDDRVTWV
KSVDEAIAACGDVPEIMVIGGGRVYEQFLPKAQKLYLTHIDAEVEGDTHFPDYEPDDWES
VFSEFHDADAQNSHSYCFEILERR