ID   FOLD2_RHIEC             Reviewed;         299 AA.
AC   Q2JZV0;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   16-JUN-2009, entry version 22.
DE   RecName: Full=Bifunctional protein folD 2;
DE   Includes:
DE     RecName: Full=Methylenetetrahydrofolate dehydrogenase;
DE              EC=1.5.1.5;
DE   Includes:
DE     RecName: Full=Methenyltetrahydrofolate cyclohydrolase;
DE              EC=3.5.4.9;
GN   Name=folD2; OrderedLocusNames=RHE_PE00416;
OS   Rhizobium etli (strain CFN 42 / ATCC 51251).
OG   Plasmid p42e.
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales;
OC   Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX   NCBI_TaxID=347834;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16505379; DOI=10.1073/pnas.0508502103;
RA   Gonzalez V., Santamaria R.I., Bustos P., Hernandez-Gonzalez I.,
RA   Medrano-Soto A., Moreno-Hagelsieb G., Janga S.C., Ramirez M.A.,
RA   Jimenez-Jacinto V., Collado-Vides J., Davila G.;
RT   "The partitioned Rhizobium etli genome: genetic and metabolic
RT   redundancy in seven interacting replicons.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:3834-3839(2006).
CC   -!- FUNCTION: Catalyzes the oxidation of 5,10-
CC       methylenetetrahydrofolate to 5,10-methenyltetrahydrofolate and
CC       then the hydrolysis of 5,10-methenyltetrahydrofolate to 10-
CC       formyltetrahydrofolate (By similarity).
CC   -!- CATALYTIC ACTIVITY: 5,10-methylenetetrahydrofolate + NADP(+) =
CC       5,10-methenyltetrahydrofolate + NADPH.
CC   -!- CATALYTIC ACTIVITY: 5,10-methenyltetrahydrofolate + H(2)O = 10-
CC       formyltetrahydrofolate.
CC   -!- PATHWAY: One-carbon metabolism; tetrahydrofolate pathway.
CC   -!- SUBUNIT: Homodimer (By similarity).
CC   -!- SIMILARITY: Belongs to the tetrahydrofolate
CC       dehydrogenase/cyclohydrolase family.
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DR   EMBL; CP000137; ABC93851.1; -; Genomic_DNA.
DR   RefSeq; YP_472578.1; -.
DR   GeneID; 3895624; -.
DR   GenomeReviews; CP000137_GR; RHE_PE00416.
DR   KEGG; ret:RHE_PE00416; -.
DR   HOGENOM; Q2JZV0; -.
DR   OMA; Q2JZV0; ISCTPAG.
DR   GO; GO:0005488; F:binding; IEA:InterPro.
DR   GO; GO:0004477; F:methenyltetrahydrofolate cyclohydrolase act...; IEA:HAMAP.
DR   GO; GO:0004488; F:methylenetetrahydrofolate dehydrogenase (NA...; IEA:HAMAP.
DR   GO; GO:0009396; P:folic acid and derivative biosynthetic process; IEA:InterPro.
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:0006730; P:one-carbon compound metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   GO; GO:0006164; P:purine nucleotide biosynthetic process; IEA:UniProtKB-KW.
DR   HAMAP; MF_01576; -; 1.
DR   InterPro; IPR016040; NAD(P)-bd_dom.
DR   InterPro; IPR000672; THF_DH/CycHdrlase.
DR   Gene3D; G3DSA:3.40.50.720; NAD(P)-bd; 1.
DR   Pfam; PF00763; THF_DHG_CYH; 1.
DR   Pfam; PF02882; THF_DHG_CYH_C; 1.
DR   PRINTS; PR00085; THFDHDRGNASE.
DR   ProDom; PD002300; THFDhg/Cyc_hydro; 1.
DR   PROSITE; PS00766; THF_DHG_CYH_1; FALSE_NEG.
DR   PROSITE; PS00767; THF_DHG_CYH_2; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Complete proteome; Histidine biosynthesis;
KW   Hydrolase; Methionine biosynthesis; Multifunctional enzyme; NADP;
KW   One-carbon metabolism; Oxidoreductase; Plasmid; Purine biosynthesis.
FT   CHAIN         1    299       Bifunctional protein folD 2.
FT                                /FTId=PRO_0000268460.
SQ   SEQUENCE   299 AA;  30906 MW;  0301A7CB16D684C1 CRC64;
     MVEVIDGKLI AASVIQTVKS ATAALEMVSG VTTGLAVIIV GDDPASHAYV GSKSRMAKEC
     GFKSVQHTLP AETTQEELAG LVATLNADPS IHGILVQLPL PKPLDSEPII QSILPEKDVD
     GLSVVNAGKL ATGDLKTGLV SCTPAGAMVF VRRTHGEDLS GLNAVVIGRS NLFGKPMAQL
     LLNANATVTI AHSRTKNLAE VCRNADILVA AVGRPEMVKA DWVKPGATVI DVGINRVPAP
     EKGEGKTRLV GDVAFREVSE IAGTITPVPG GVGPMTIAML MANTVIAAHR AAGQVPPKF
//