ID   DYR_SHIFL               Reviewed;         159 AA.
AC   P0ABQ6; P00379;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   16-JUN-2009, entry version 34.
DE   RecName: Full=Dihydrofolate reductase;
DE            EC=1.5.1.3;
GN   Name=folA; OrderedLocusNames=SF0045, S0047;
OS   Shigella flexneri.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacteriales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=301 / Serotype 2a;
RX   MEDLINE=22272406; PubMed=12384590; DOI=10.1093/nar/gkf566;
RA   Jin Q., Yuan Z., Xu J., Wang Y., Shen Y., Lu W., Wang J., Liu H.,
RA   Yang J., Yang F., Zhang X., Zhang J., Yang G., Wu H., Qu D., Dong J.,
RA   Sun L., Xue Y., Zhao A., Gao Y., Zhu J., Kan B., Ding K., Chen S.,
RA   Cheng H., Yao Z., He B., Chen R., Ma D., Qiang B., Wen Y., Hou Y.,
RA   Yu J.;
RT   "Genome sequence of Shigella flexneri 2a: insights into pathogenicity
RT   through comparison with genomes of Escherichia coli K12 and O157.";
RL   Nucleic Acids Res. 30:4432-4441(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700930 / 2457T / Serotype 2a;
RX   MEDLINE=22590274; PubMed=12704152;
RX   DOI=10.1128/IAI.71.5.2775-2786.2003;
RA   Wei J., Goldberg M.B., Burland V., Venkatesan M.M., Deng W.,
RA   Fournier G., Mayhew G.F., Plunkett G. III, Rose D.J., Darling A.,
RA   Mau B., Perna N.T., Payne S.M., Runyen-Janecky L.J., Zhou S.,
RA   Schwartz D.C., Blattner F.R.;
RT   "Complete genome sequence and comparative genomics of Shigella
RT   flexneri serotype 2a strain 2457T.";
RL   Infect. Immun. 71:2775-2786(2003).
CC   -!- CATALYTIC ACTIVITY: 5,6,7,8-tetrahydrofolate + NADP(+) = 7,8-
CC       dihydrofolate + NADPH.
CC   -!- PATHWAY: Cofactor biosynthesis; tetrahydrofolate biosynthesis;
CC       tetrahydrofolate from dihydrofolate: step 1/1.
CC   -!- MISCELLANEOUS: The reaction catalyzed by this enzyme represents an
CC       essential step for de novo glycine and purine synthesis, DNA
CC       precursor synthesis, and for the conversion of dUMP to dTMP.
CC   -!- SIMILARITY: Belongs to the dihydrofolate reductase family.
CC   -!- SIMILARITY: Contains 1 DHFR (dihydrofolate reductase) domain.
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DR   EMBL; AE005674; AAN41711.1; ALT_INIT; Genomic_DNA.
DR   EMBL; AE014073; AAP15591.1; -; Genomic_DNA.
DR   RefSeq; NP_706004.2; -.
DR   RefSeq; NP_835786.1; -.
DR   SMR; P0ABQ6; 1-159.
DR   GeneID; 1024577; -.
DR   GeneID; 1076432; -.
DR   GenomeReviews; AE005674_GR; SF0045.
DR   GenomeReviews; AE014073_GR; S0047.
DR   KEGG; sfl:SF0045; -.
DR   KEGG; sfx:S0047; -.
DR   HOGENOM; P0ABQ6; -.
DR   BioCyc; SFLE198214:AAN41711.1-MON; -.
DR   BRENDA; 1.5.1.3; 189495.
DR   BindingDB; P0ABQ6; -.
DR   GO; GO:0004146; F:dihydrofolate reductase activity; IEA:EC.
DR   GO; GO:0050661; F:NADP or NADPH binding; IEA:InterPro.
DR   GO; GO:0006545; P:glycine biosynthetic process; IEA:InterPro.
DR   GO; GO:0009165; P:nucleotide biosynthetic process; IEA:InterPro.
DR   GO; GO:0006730; P:one-carbon compound metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   InterPro; IPR012259; DHFR.
DR   InterPro; IPR001796; DHFR_reg.
DR   InterPro; IPR017925; Dihydrofolate_reductase_CS.
DR   PANTHER; PTHR11549:SF1; DHFR; 1.
DR   Pfam; PF00186; DHFR_1; 1.
DR   PRINTS; PR00070; DHFR.
DR   PROSITE; PS00075; DHFR_1; 1.
DR   PROSITE; PS51330; DHFR_2; 1.
PE   3: Inferred from homology;
KW   Complete proteome; NADP; One-carbon metabolism; Oxidoreductase.
FT   CHAIN         1    159       Dihydrofolate reductase.
FT                                /FTId=PRO_0000186404.
FT   DOMAIN        1    158       DHFR.
SQ   SEQUENCE   159 AA;  17999 MW;  6A03CDCD7F5F8562 CRC64;
     MISLIAALAV DRVIGMENAM PWNLPADLAW FKRNTLNKPV IMGRHTWESI GRPLPGRKNI
     ILSSQPGTDD RVTWVKSVDE AIAACGDVPE IMVIGGGRVY EQFLPKAQKL YLTHIDAEVE
     GDTHFPDYEP DDWESVFSEF HDADAQNSHS YCFEILERR
//