>tr|V5RSE8|V5RSE8_ECOLX dihydrofolate reductase OS=Escherichia coli GN=dfrA15 MKLSLMAAISKNGVIGNGPDIPWSAKGEQLLFKAITYNQWLLVGRKTFESMGALPNRKYA VVTRSSFTSSDENVLVFPSIDEALNHLKTITDHVIVSGGGEIYKSLIDKVDTLHISTIDI EPEGDVYFPEIPSSFRPVFSQDFVSNINYSYQIWQKG