ID   FOLD2_PARDP             Reviewed;         302 AA.
AC   A1BBS1;
DT   10-JUN-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 1.
DT   16-JUN-2009, entry version 23.
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=Pden_4905;
OS   Paracoccus denitrificans (strain Pd 1222).
OG   Plasmid pPD1222.
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Paracoccus.
OX   NCBI_TaxID=318586;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H.,
RA   Pitluck S., Munk A.C., Brettin T., Bruce D., Han C., Tapia R.,
RA   Gilna P., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Lykidis A., Spiro S., Richardson D.J., Moir J.W.B., Ferguson S.J.,
RA   van Spanning R.J.M., Richardson P.;
RT   "Complete sequence of plasmid 1 of Paracoccus denitrificans PD1222.";
RL   Submitted (DEC-2006) 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; CP000491; ABL72965.1; -; Genomic_DNA.
DR   RefSeq; YP_918661.1; -.
DR   GeneID; 4583466; -.
DR   GenomeReviews; CP000491_GR; Pden_4905.
DR   KEGG; pde:Pden_4905; -.
DR   OMA; A1BBS1; MQIIDGK.
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; Plasmid; Purine biosynthesis.
FT   CHAIN         1    302       Bifunctional protein folD 2.
FT                                /FTId=PRO_0000340586.
SQ   SEQUENCE   302 AA;  31103 MW;  C990C4FE71559910 CRC64;
     MAARNGGTII DGKAFASGVR GRVASAVAGL EAAHGVVPGL AVVLVGEDPA SQVYVRNKGI
     QTREAGMASF EHKLPAETAQ AELMALIERL NADPAVHGIL VQLPLPRHMD AEAVINAIDP
     KKDVDGFHVL NVGLLGTGQK AMVPCTPLGC LMLLRDTLGD LSGLNAVVVG RSNIVGKPMA
     QLLLNESCTV TIAHSRTRDL AGLCRTADIL VAAVGRPRMI RGDWIKPGAT VIDVGINRIE
     EAGRSRLVGD VDFDSAAPVA GAITPVPGGV GPMTIACLLA NTLTACCRAN GLPEPDFAEA
     GG
//