ID Q5M5B2_STRT2 Unreviewed; 167 AA.
AC Q5M5B2;
DT 01-FEB-2005, integrated into UniProtKB/TrEMBL.
DT 01-FEB-2005, sequence version 1.
DT 27-MAR-2024, entry version 105.
DE RecName: Full=Dihydrofolate reductase {ECO:0000256|ARBA:ARBA00012856, ECO:0000256|PIRNR:PIRNR000194};
DE EC=1.5.1.3 {ECO:0000256|ARBA:ARBA00012856, ECO:0000256|PIRNR:PIRNR000194};
GN Name=folA {ECO:0000313|EMBL:AAV60285.1};
GN OrderedLocusNames=stu0579 {ECO:0000313|EMBL:AAV60285.1};
OS Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=264199 {ECO:0000313|EMBL:AAV60285.1, ECO:0000313|Proteomes:UP000001170};
RN [1] {ECO:0000313|EMBL:AAV60285.1, ECO:0000313|Proteomes:UP000001170}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-250 / LMG 18311 {ECO:0000313|Proteomes:UP000001170};
RX PubMed=15543133; DOI=10.1038/nbt1034;
RA Bolotin A., Quinquis B., Renault P., Sorokin A., Ehrlich S.D.,
RA Kulakauskas S., Lapidus A., Goltsman E., Mazur M., Pusch G.D., Fonstein M.,
RA Overbeek R., Kyprides N., Purnelle B., Prozzi D., Ngui K., Masuy D.,
RA Hancy F., Burteau S., Boutry M., Delcour J., Goffeau A., Hols P.;
RT "Complete sequence and comparative genome analysis of the dairy bacterium
RT Streptococcus thermophilus.";
RL Nat. Biotechnol. 22:1554-1558(2004).
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. {ECO:0000256|PIRNR:PIRNR000194}.
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;
CC Evidence={ECO:0000256|PIRNR:PIRNR000194};
CC -!- PATHWAY: Cofactor biosynthesis; tetrahydrofolate biosynthesis; 5,6,7,8-
CC tetrahydrofolate from 7,8-dihydrofolate: step 1/1.
CC {ECO:0000256|ARBA:ARBA00004903, ECO:0000256|PIRNR:PIRNR000194}.
CC -!- SIMILARITY: Belongs to the dihydrofolate reductase family.
CC {ECO:0000256|ARBA:ARBA00009539, ECO:0000256|PIRNR:PIRNR000194,
CC ECO:0000256|RuleBase:RU004474}.
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DR EMBL; CP000023; AAV60285.1; -; Genomic_DNA.
DR RefSeq; WP_011225671.1; NC_006448.1.
DR AlphaFoldDB; Q5M5B2; -.
DR STRING; 264199.stu0579; -.
DR GeneID; 66898483; -.
DR KEGG; stl:stu0579; -.
DR PATRIC; fig|264199.4.peg.586; -.
DR eggNOG; COG0262; Bacteria.
DR HOGENOM; CLU_043966_5_2_9; -.
DR UniPathway; UPA00077; UER00158.
DR Proteomes; UP000001170; 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; Dihydrofolate Reductase, subunit A; 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; DIHYDROFOLATE REDUCTASE; 1.
DR PANTHER; PTHR48069:SF3; DIHYDROFOLATE REDUCTASE; 1.
DR Pfam; PF00186; DHFR_1; 1.
DR PIRSF; PIRSF000194; DHFR; 1.
DR PRINTS; PR00070; DHFR.
DR SUPFAM; SSF53597; Dihydrofolate reductase-like; 1.
DR PROSITE; PS00075; DHFR_1; 1.
DR PROSITE; PS51330; DHFR_2; 1.
PE 3: Inferred from homology;
KW NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|PIRNR:PIRNR000194};
KW One-carbon metabolism {ECO:0000256|PIRNR:PIRNR000194};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|PIRNR:PIRNR000194};
KW Reference proteome {ECO:0000313|Proteomes:UP000001170}.
FT DOMAIN 4..164
FT /note="DHFR"
FT /evidence="ECO:0000259|PROSITE:PS51330"
SQ SEQUENCE 167 AA; 19170 MW; E9F6123990C16816 CRC64;
MSKQIIAIWA EARNHVIGKN HTMPWHLPAE LAHFKKTTMG SAILMGRVTF DGMNRRCLPG
RETLILTRDK DFDCEEVTTV TSVEEALAWF EQQDKDLYIA GGASVYKAFD GHYDVLIKTT
IEADLEGDTY FPQLDTTAFK EVSRNRVPKN EKNAYDFSIS RYEKERD
//
