ID A4AHI2_9ACTN Unreviewed; 176 AA.
AC A4AHI2;
DT 03-APR-2007, integrated into UniProtKB/TrEMBL.
DT 03-APR-2007, sequence version 1.
DT 27-MAR-2024, entry version 73.
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 ORFNames=A20C1_01331 {ECO:0000313|EMBL:EAR25188.1};
OS marine actinobacterium PHSC20C1.
OC Bacteria; Actinomycetota; Actinomycetes.
OX NCBI_TaxID=312284 {ECO:0000313|EMBL:EAR25188.1, ECO:0000313|Proteomes:UP000003868};
RN [1] {ECO:0000313|EMBL:EAR25188.1, ECO:0000313|Proteomes:UP000003868}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PHSC20C1 {ECO:0000313|EMBL:EAR25188.1,
RC ECO:0000313|Proteomes:UP000003868};
RA Murray A., Ferriera S., Johnson J., Kravitz S., Halpern A., Remington K.,
RA Beeson K., Tran B., Rogers Y.-H., Friedman R., Venter J.C.;
RL Submitted (FEB-2006) to the EMBL/GenBank/DDBJ databases.
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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EAR25188.1}.
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DR EMBL; AAOB01000004; EAR25188.1; -; Genomic_DNA.
DR AlphaFoldDB; A4AHI2; -.
DR STRING; 312284.A20C1_01331; -.
DR eggNOG; COG0262; Bacteria.
DR HOGENOM; CLU_043966_5_0_11; -.
DR OrthoDB; 9804315at2; -.
DR UniPathway; UPA00077; UER00158.
DR Proteomes; UP000003868; Unassembled WGS sequence.
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:UP000003868}.
FT DOMAIN 4..170
FT /note="DHFR"
FT /evidence="ECO:0000259|PROSITE:PS51330"
SQ SEQUENCE 176 AA; 19401 MW; C4C4B94BCB265CAF CRC64;
MTVALGLIWA QSEGGVIGQG GTMPWQLPED LAHFKKLTLG SPVIMGRKTW KSLPPRFRPL
PGRRNIVVTR QADWNADGAE IAHSVDAARE LAATSVDDGE IVWVIGGAEI YRATIASAHR
LEITQIRENF VGDTIAPELG EQWMLAASDP AEGWHTSTAG LQYRFERYEN HASNQR
//
