FOLD_HAEI8
ID FOLD_HAEI8 Reviewed; 282 AA.
AC Q4QMI7;
DT 12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT 19-JUL-2005, sequence version 1.
DT 03-AUG-2022, entry version 91.
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=NTHI0864;
OS Haemophilus influenzae (strain 86-028NP).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC Pasteurellaceae; Haemophilus.
OX NCBI_TaxID=281310;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=86-028NP;
RX PubMed=15968074; DOI=10.1128/jb.187.13.4627-4636.2005;
RA Harrison A., Dyer D.W., Gillaspy A., Ray W.C., Mungur R., Carson M.B.,
RA Zhong H., Gipson J., Gipson M., Johnson L.S., Lewis L., Bakaletz L.O.,
RA Munson R.S. Jr.;
RT "Genomic sequence of an otitis media isolate of nontypeable Haemophilus
RT influenzae: comparative study with H. influenzae serotype d, strain KW20.";
RL J. Bacteriol. 187:4627-4636(2005).
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; CP000057; AAX87760.1; -; Genomic_DNA.
DR RefSeq; WP_005654480.1; NC_007146.2.
DR AlphaFoldDB; Q4QMI7; -.
DR SMR; Q4QMI7; -.
DR EnsemblBacteria; AAX87760; AAX87760; NTHI0864.
DR KEGG; hit:NTHI0864; -.
DR HOGENOM; CLU_034045_2_1_6; -.
DR OMA; HIVGRPM; -.
DR OrthoDB; 1449514at2; -.
DR UniPathway; UPA00193; -.
DR Proteomes; UP000002525; 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..282
FT /note="Bifunctional protein FolD"
FT /id="PRO_0000268365"
FT BINDING 166..168
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
FT BINDING 232
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01576"
SQ SEQUENCE 282 AA; 30460 MW; 0C39A118DEA5B888 CRC64;
MAAKIISGTE LSKQIKANLA DKITHYIEQG KRAPGLAVIL VGADPASQIY VGNKRKSCEE
VGILSKSYDL PETTTQNELL AIIDQLNADK NIDGILVQLP LPKQINAEAI IERIDPKKDV
DGFHPYNVGR LCQRIPTLRA CTPYGVMKLL ETTGIDLHGK HAVIVGASNI VGRPMSLELL
LAGATVTVTH RFTKNLENHV RQADILVVAV GKPNLISGDW IKESAVVIDV GINRVDGKLV
GDVEFDKAAE KAAYITPVPG GVGPMTVAML MSNTLYAYEH NK
