FOLD_PICTO
ID FOLD_PICTO Reviewed; 276 AA.
AC Q6L046;
DT 12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 100.
DE RecName: Full=Bifunctional protein FolD {ECO:0000255|HAMAP-Rule:MF_01576};
DE Includes:
DE RecName: Full=Methylenetetrahydrofolate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01576};
DE EC=1.5.1.5 {ECO:0000255|HAMAP-Rule:MF_01576};
DE Includes:
DE RecName: Full=Methenyltetrahydrofolate cyclohydrolase {ECO:0000255|HAMAP-Rule:MF_01576};
DE EC=3.5.4.9 {ECO:0000255|HAMAP-Rule:MF_01576};
GN Name=folD {ECO:0000255|HAMAP-Rule:MF_01576}; OrderedLocusNames=PTO1071;
OS Picrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC
OS 100828).
OC Archaea; Candidatus Thermoplasmatota; Thermoplasmata; Thermoplasmatales;
OC Picrophilaceae; Picrophilus.
OX NCBI_TaxID=263820;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828;
RX PubMed=15184674; DOI=10.1073/pnas.0401356101;
RA Fuetterer O., Angelov A., Liesegang H., Gottschalk G., Schleper C.,
RA Schepers B., Dock C., Antranikian G., Liebl W.;
RT "Genome sequence of Picrophilus torridus and its implications for life
RT around pH 0.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:9091-9096(2004).
CC -!- FUNCTION: Catalyzes the oxidation of 5,10-methylenetetrahydrofolate to
CC 5,10-methenyltetrahydrofolate and then the hydrolysis of 5,10-
CC methenyltetrahydrofolate to 10-formyltetrahydrofolate.
CC {ECO:0000255|HAMAP-Rule:MF_01576}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + NADP(+) = 5,10-
CC methenyltetrahydrofolate + NADPH; Xref=Rhea:RHEA:22812,
CC ChEBI:CHEBI:15636, ChEBI:CHEBI:57455, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349; EC=1.5.1.5; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01576};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5,10-methenyltetrahydrofolate + H2O = (6S)-10-
CC formyltetrahydrofolate + H(+); Xref=Rhea:RHEA:23700,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:57454,
CC ChEBI:CHEBI:57455; EC=3.5.4.9; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01576};
CC -!- PATHWAY: One-carbon metabolism; tetrahydrofolate interconversion.
CC {ECO:0000255|HAMAP-Rule:MF_01576}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01576}.
CC -!- SIMILARITY: Belongs to the tetrahydrofolate
CC dehydrogenase/cyclohydrolase family. {ECO:0000255|HAMAP-Rule:MF_01576}.
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DR EMBL; AE017261; AAT43656.1; -; Genomic_DNA.
DR RefSeq; WP_011177872.1; NC_005877.1.
DR AlphaFoldDB; Q6L046; -.
DR SMR; Q6L046; -.
DR STRING; 263820.PTO1071; -.
DR EnsemblBacteria; AAT43656; AAT43656; PTO1071.
DR GeneID; 2845254; -.
DR KEGG; pto:PTO1071; -.
DR PATRIC; fig|263820.9.peg.1111; -.
DR eggNOG; arCOG04538; Archaea.
DR HOGENOM; CLU_034045_2_1_2; -.
DR OMA; KACSKEI; -.
DR OrthoDB; 48572at2157; -.
DR UniPathway; UPA00193; -.
DR Proteomes; UP000000438; Chromosome.
DR GO; GO:0004477; F:methenyltetrahydrofolate cyclohydrolase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004488; F:methylenetetrahydrofolate dehydrogenase (NADP+) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0009086; P:methionine biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0006164; P:purine nucleotide biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0035999; P:tetrahydrofolate interconversion; IEA:UniProtKB-UniPathway.
DR CDD; cd01080; NAD_bind_m-THF_DH_Cyclohyd; 1.
DR HAMAP; MF_01576; THF_DHG_CYH; 1.
DR InterPro; IPR046346; Aminiacid_DH-like_N_sf.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR000672; THF_DH/CycHdrlase.
DR InterPro; IPR020630; THF_DH/CycHdrlase_cat_dom.
DR InterPro; IPR020631; THF_DH/CycHdrlase_NAD-bd_dom.
DR Pfam; PF00763; THF_DHG_CYH; 1.
DR Pfam; PF02882; THF_DHG_CYH_C; 1.
DR PRINTS; PR00085; THFDHDRGNASE.
DR SUPFAM; SSF51735; SSF51735; 1.
DR SUPFAM; SSF53223; SSF53223; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Histidine biosynthesis; Hydrolase;
KW Methionine biosynthesis; Multifunctional enzyme; NADP;
KW One-carbon metabolism; Oxidoreductase; Purine biosynthesis;
KW Reference proteome.
FT CHAIN 1..276
FT /note="Bifunctional protein FolD"
FT /id="PRO_0000268588"
FT BINDING 158..160
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
FT BINDING 183
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
FT BINDING 224
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
SQ SEQUENCE 276 AA; 30782 MW; 8E1CFADEB64D01BB CRC64;
MIIDGVKISE TKMERLKNEI EKIKNTGINP KMKIILIGND YGSVVYSKAK MRRGSKLGID
VDLDRYDSIS REDLIKLLKR YSQSDDIHGI MIETPVPGIN YYDVVNEIPF YKDVDGMTSY
NLGNLYLKNE FIAPATARAV VDILDYINIK SGNVAIINRS PVVGRPLSMM LLNRDFTVTV
CHSRTVNINE ITRSSDIVVV AVGKPNFLDR SYVSDKNIII DVGINYLNGK TCGDADYENI
KDYVNAITPV PGGVGPVTAT DIFENFINGL KYQIKG
