FOLD_CHLTB
ID FOLD_CHLTB Reviewed; 287 AA.
AC B0BB65;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 26-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 77.
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=CTLon_0329;
OS Chlamydia trachomatis serovar L2b (strain UCH-1/proctitis).
OC Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC Chlamydia/Chlamydophila group; Chlamydia.
OX NCBI_TaxID=471473;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UCH-1/proctitis;
RX PubMed=18032721; DOI=10.1101/gr.7020108;
RA Thomson N.R., Holden M.T.G., Carder C., Lennard N., Lockey S.J., Marsh P.,
RA Skipp P., O'Connor C.D., Goodhead I., Norbertzcak H., Harris B., Ormond D.,
RA Rance R., Quail M.A., Parkhill J., Stephens R.S., Clarke I.N.;
RT "Chlamydia trachomatis: genome sequence analysis of lymphogranuloma
RT venereum isolates.";
RL Genome Res. 18:161-171(2008).
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; AM884177; CAP06727.1; -; Genomic_DNA.
DR RefSeq; WP_009871427.1; NC_010280.2.
DR AlphaFoldDB; B0BB65; -.
DR SMR; B0BB65; -.
DR KEGG; ctl:CTLon_0329; -.
DR HOGENOM; CLU_034045_2_0_0; -.
DR OMA; HIVGRPM; -.
DR UniPathway; UPA00193; -.
DR Proteomes; UP000000794; 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; IPR020867; THF_DH/CycHdrlase_CS.
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.
DR PROSITE; PS00766; THF_DHG_CYH_1; 1.
DR PROSITE; PS00767; THF_DHG_CYH_2; 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.
FT CHAIN 1..287
FT /note="Bifunctional protein FolD"
FT /id="PRO_1000215590"
FT BINDING 160..162
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
FT BINDING 189
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
FT BINDING 230
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
SQ SEQUENCE 287 AA; 30866 MW; E1DE200A7A47DBF0 CRC64;
MLLKGAPAAD HILATIKENI RACSKAPGLA VVLIGNNPAS EIYVNMKIKR ATDLGMVSKS
YRKPSDATLS DILALIHQLN NDENIHGILV QLPLPKHLDA QAILSTITPD KDVDGLHPVN
VGKLLLGETD GFIPCTPAGI VELCKYYEIP LHGKHVVILG RSNIVGKPLA ALLMQRHADT
NASVTLLHSQ SEHLTEITRT ADILISAIGV PLFVNKEMIA EKTVIMDVGT SRIPAANPKG
YILVGDVDFN NVVPVCRAIT PVPGGVGPMT VAMLMRNTWE SFLRHTS
