ID   FOLD3_PSEMY             Reviewed;         307 AA.
AC   A4XY05;
DT   10-JUN-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   16-JUN-2009, entry version 19.
DE   RecName: Full=Bifunctional protein folD 3;
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=folD3; OrderedLocusNames=Pmen_3471;
OS   Pseudomonas mendocina (strain ymp).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=399739;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T.,
RA   Dalin E., Tice H., Pitluck S., Kiss H., Brettin T., Detter J.C.,
RA   Bruce D., Han C., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Mikhailova N., Hersman L., Dubois J., Maurice P.,
RA   Richardson P.;
RT   "Complete sequence of Pseudomonas mendocina ymp.";
RL   Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000680; ABP86221.1; -; Genomic_DNA.
DR   RefSeq; YP_001188953.1; -.
DR   GeneID; 5105941; -.
DR   GenomeReviews; CP000680_GR; Pmen_3471.
DR   KEGG; pmy:Pmen_3471; -.
DR   OMA; A4XY05; KRKACAE.
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; Purine biosynthesis.
FT   CHAIN         1    307       Bifunctional protein folD 3.
FT                                /FTId=PRO_0000340589.
SQ   SEQUENCE   307 AA;  32153 MW;  D2E0D8F6FA4E145B CRC64;
     MNTQAPIKLI DGKAAAARVL AEVAEDVRAL KAAGIVPALA VVLVGDDPAS QVYVRNKVLR
     AEECGIRSLE FKLPADTAEA RLQALIAELN ADASVHGILV QLPLPAHIDE QRVLQAVTPL
     KDVDGFHAEN VGGLSQGREV LTPCTPAGCL RLLQDSCGDL TGKHAVVIGR SNIVGKPMAA
     LLLKAHCSVT VVHSKSANLK TLCRQADIVV AAVGRPRLVD ADWLKPGAVV IDVGINRIDE
     NGRSRLVGDV DFDSALPQVS AITPVPGGVG PMTIAYLMKN TLVAARLQQT APSNLTQRAE
     AACPSIS
//