ID   DYR_MYCTO               Reviewed;         161 AA.
AC   P9WNX0; L0TDH5; O33305; P0A546;
DT   16-APR-2014, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-2015, sequence version 2.
DT   03-AUG-2022, entry version 36.
DE   RecName: Full=Dihydrofolate reductase;
DE            EC=1.5.1.3;
GN   Name=folA; Synonyms=dfrA; OrderedLocusNames=MT2833;
OS   Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=83331;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CDC 1551 / Oshkosh;
RX   PubMed=12218036; DOI=10.1128/jb.184.19.5479-5490.2002;
RA   Fleischmann R.D., Alland D., Eisen J.A., Carpenter L., White O.,
RA   Peterson J.D., DeBoy R.T., Dodson R.J., Gwinn M.L., Haft D.H., Hickey E.K.,
RA   Kolonay J.F., Nelson W.C., Umayam L.A., Ermolaeva M.D., Salzberg S.L.,
RA   Delcher A., Utterback T.R., Weidman J.F., Khouri H.M., Gill J., Mikula A.,
RA   Bishai W., Jacobs W.R. Jr., Venter J.C., Fraser C.M.;
RT   "Whole-genome comparison of Mycobacterium tuberculosis clinical and
RT   laboratory strains.";
RL   J. Bacteriol. 184:5479-5490(2002).
CC   -!- FUNCTION: Key enzyme in folate metabolism. Catalyzes an essential
CC       reaction for de novo glycine and purine synthesis, and for DNA
CC       precursor synthesis (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(6S)-5,6,7,8-tetrahydrofolate + NADP(+) = 7,8-dihydrofolate +
CC         H(+) + NADPH; Xref=Rhea:RHEA:15009, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:57451, ChEBI:CHEBI:57453, ChEBI:CHEBI:57783,
CC         ChEBI:CHEBI:58349; EC=1.5.1.3; Evidence={ECO:0000255|PROSITE-
CC         ProRule:PRU00660};
CC   -!- PATHWAY: Cofactor biosynthesis; tetrahydrofolate biosynthesis; 5,6,7,8-
CC       tetrahydrofolate from 7,8-dihydrofolate: step 1/1.
CC   -!- SIMILARITY: Belongs to the dihydrofolate reductase family.
CC       {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAK47152.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AE000516; AAK47152.1; ALT_INIT; Genomic_DNA.
DR   PIR; B70881; B70881.
DR   AlphaFoldDB; P9WNX0; -.
DR   SMR; P9WNX0; -.
DR   EnsemblBacteria; AAK47152; AAK47152; MT2833.
DR   KEGG; mtc:MT2833; -.
DR   HOGENOM; CLU_043966_5_0_11; -.
DR   UniPathway; UPA00077; UER00158.
DR   Proteomes; UP000001020; Chromosome.
DR   GO; GO:0004146; F:dihydrofolate reductase activity; IEA:UniProtKB-EC.
DR   GO; GO:0050661; F:NADP binding; IEA:InterPro.
DR   GO; GO:0006545; P:glycine biosynthetic process; IEA:InterPro.
DR   GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0046654; P:tetrahydrofolate biosynthetic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd00209; DHFR; 1.
DR   Gene3D; 3.40.430.10; -; 1.
DR   InterPro; IPR012259; DHFR.
DR   InterPro; IPR024072; DHFR-like_dom_sf.
DR   InterPro; IPR017925; DHFR_CS.
DR   InterPro; IPR001796; DHFR_dom.
DR   PANTHER; PTHR48069; PTHR48069; 1.
DR   Pfam; PF00186; DHFR_1; 1.
DR   PIRSF; PIRSF000194; DHFR; 1.
DR   SUPFAM; SSF53597; SSF53597; 1.
DR   PROSITE; PS00075; DHFR_1; 1.
DR   PROSITE; PS51330; DHFR_2; 1.
PE   3: Inferred from homology;
KW   NADP; One-carbon metabolism; Oxidoreductase.
FT   CHAIN           1..161
FT                   /note="Dihydrofolate reductase"
FT                   /id="PRO_0000427053"
FT   DOMAIN          1..160
FT                   /note="DHFR"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00660"
FT   BINDING         7..9
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         8..9
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         16..21
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         29
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         34
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         45..48
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         62
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         67..70
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         82
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         96..101
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000250"
FT   BINDING         102
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         115
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   161 AA;  17872 MW;  B8980922D2F18C44 CRC64;
     MTMVGLIWAQ ATSGVIGRGG DIPWRLPEDQ AHFREITMGH TIVMGRRTWD SLPAKVRPLP
     GRRNVVLSRQ ADFMASGAEV VGSLEEALTS PETWVIGGGQ VYALALPYAT RCEVTEVDIG
     LPREAGDALA PVLDETWRGE TGEWRFSRSG LRYRLYSYHR S