>tr|A0A2Z5U5A7|A0A2Z5U5A7_KLEPN Dihydrofolate reductase OS=Klebsiella pneumoniae GN=dfrB1 MERSSNEVSNPVAGNFVFPSNATFGMGDRVRKKSGAAWQGQIVGWYCTNLTPEGYAVESE AHPGSVQIYPVAALERIN