ID   FOLD3_SPHWW             Reviewed;         304 AA.
AC   A5VAA8;
DT   10-JUN-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-JUL-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=Swit_2872;
OS   Sphingomonas wittichii (strain RW1 / DSM 6014 / JCM 10273).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales;
OC   Sphingomonadaceae; Sphingomonas.
OX   NCBI_TaxID=392499;
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., Saunders E., Brettin T., Bruce D.,
RA   Detter J.C., Han C., Tapia R., Gilna P., Schmutz J., Larimer F.,
RA   Land M., Hauser L., Kyrpides N., Kim E., Halden R.U., Miller T.R.,
RA   Salzberg S.L., Eisen J.A., Richardson P.;
RT   "Complete sequence of chromosome of Sphingomonas wittichii RW1.";
RL   Submitted (MAY-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; CP000699; ABQ69224.1; -; Genomic_DNA.
DR   RefSeq; YP_001263362.1; -.
DR   GeneID; 5196730; -.
DR   GenomeReviews; CP000699_GR; Swit_2872.
DR   KEGG; swi:Swit_2872; -.
DR   NMPDR; fig|392499.4.peg.3032; -.
DR   OMA; A5VAA8; HSKTRDL.
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; 1.
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    304       Bifunctional protein folD 3.
FT                                /FTId=PRO_0000340601.
SQ   SEQUENCE   304 AA;  31569 MW;  644794AB5F564308 CRC64;
     MERVGMNGAE IIDGKAYAAG LRARVATAVP AFRVAAGRAP GLAVVLVGED AASQVYVRSK
     HKATVEAGME SFEHRLPATA SETELLALVE RLNADDRVDG ILVQLPLPPH IDEKKVIATI
     DPDKDVDGFH VVNAGRLAVG EAGYVPCTPL GCLMLLKDRR GDLSGLEAVV IGRSNIVGKP
     MAALLLAENC TVTIAHSRTR DLAEVVRRAD IVVAAVGRPE MVRGDWIRPG ATVIDVGINR
     VPGAEPGKTR LVGDVAFAEA AAVAGAITPV PGGVGPMTIA VLLRNTLVAA HRRAGVALPE
     GAIG
//