>sp|Q59408|DYR13_ECOLX Dihydrofolate reductase type A13 OS=Escherichia coli GN=dfrA13 MNPESVRIYLVAAMGANRVIGNGPDIPWKIPGEQKIFRRLTESKVVVMGRKTFESIGKPL PNRHTVVLSRQAGYSAPGCAVVSTLSHVSPSTAEHGKELYVARGAEVYALALPHANGVFL SEVHQTFEGDAFFPVLNAAEFEVVSSETIQGTITYTHSVYARRNG