ID A0A1F3NXL2_9BACT Unreviewed; 316 AA.
AC A0A1F3NXL2;
DT 15-FEB-2017, integrated into UniProtKB/TrEMBL.
DT 15-FEB-2017, sequence version 1.
DT 27-MAR-2024, entry version 22.
DE RecName: Full=Methylenetetrahydrofolate reductase {ECO:0000256|RuleBase:RU003862};
DE EC=1.5.1.54 {ECO:0000256|RuleBase:RU003862};
GN ORFNames=A3G23_08650 {ECO:0000313|EMBL:OFY70206.1};
OS Bacteroidetes bacterium RIFCSPLOWO2_12_FULL_37_12.
OC Bacteria; Bacteroidota.
OX NCBI_TaxID=1797365 {ECO:0000313|EMBL:OFY70206.1, ECO:0000313|Proteomes:UP000176497};
RN [1] {ECO:0000313|EMBL:OFY70206.1, ECO:0000313|Proteomes:UP000176497}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=27774985; DOI=10.1038/ncomms13219;
RA Anantharaman K., Brown C.T., Hug L.A., Sharon I., Castelle C.J.,
RA Probst A.J., Thomas B.C., Singh A., Wilkins M.J., Karaoz U., Brodie E.L.,
RA Williams K.H., Hubbard S.S., Banfield J.F.;
RT "Thousands of microbial genomes shed light on interconnected biogeochemical
RT processes in an aquifer system.";
RL Nat. Commun. 7:13219-13219(2016).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6S)-5-methyl-5,6,7,8-tetrahydrofolate + NAD(+) = (6R)-5,10-
CC methylene-5,6,7,8-tetrahydrofolate + H(+) + NADH;
CC Xref=Rhea:RHEA:19821, ChEBI:CHEBI:15378, ChEBI:CHEBI:15636,
CC ChEBI:CHEBI:18608, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=1.5.1.54;
CC Evidence={ECO:0000256|ARBA:ARBA00034420};
CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:19823;
CC Evidence={ECO:0000256|ARBA:ARBA00034420};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|ARBA:ARBA00001974,
CC ECO:0000256|RuleBase:RU003862};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC pathway. {ECO:0000256|ARBA:ARBA00034478}.
CC -!- PATHWAY: One-carbon metabolism; tetrahydrofolate interconversion.
CC {ECO:0000256|ARBA:ARBA00004777, ECO:0000256|RuleBase:RU003862}.
CC -!- SIMILARITY: Belongs to the methylenetetrahydrofolate reductase family.
CC {ECO:0000256|ARBA:ARBA00006743, ECO:0000256|RuleBase:RU003862}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OFY70206.1}.
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DR EMBL; MEPC01000024; OFY70206.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1F3NXL2; -.
DR STRING; 1797365.A3G23_08650; -.
DR UniPathway; UPA00193; -.
DR Proteomes; UP000176497; Unassembled WGS sequence.
DR GO; GO:0005829; C:cytosol; IEA:InterPro.
DR GO; GO:0106312; F:methylenetetrahydrofolate reductase NADH activity; IEA:RHEA.
DR GO; GO:0009086; P:methionine biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0035999; P:tetrahydrofolate interconversion; IEA:UniProtKB-UniPathway.
DR CDD; cd00537; MTHFR; 1.
DR Gene3D; 3.20.20.220; -; 1.
DR InterPro; IPR029041; FAD-linked_oxidoreductase-like.
DR InterPro; IPR003171; Mehydrof_redctse-like.
DR InterPro; IPR004620; MTHF_reductase_bac.
DR NCBIfam; TIGR00676; fadh2; 1.
DR PANTHER; PTHR45754; METHYLENETETRAHYDROFOLATE REDUCTASE; 1.
DR PANTHER; PTHR45754:SF3; METHYLENETETRAHYDROFOLATE REDUCTASE; 1.
DR Pfam; PF02219; MTHFR; 1.
DR SUPFAM; SSF51730; FAD-linked oxidoreductase; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605};
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|RuleBase:RU003862};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630,
KW ECO:0000256|RuleBase:RU003862};
KW Methionine biosynthesis {ECO:0000256|ARBA:ARBA00023167};
KW NAD {ECO:0000256|ARBA:ARBA00023027};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU003862}.
SQ SEQUENCE 316 AA; 35881 MW; 47FA65C4CD182490 CRC64;
MKVTEHLKNA ASTLFTFEIL PPLKGHGIQE IFDAIDLLMD FNPPFIDVTY HRQDFIYVEL
PDGKIEKRPH RKRPGTVGIC AAIINRYKID PVPHIICGGF TKQDTEDALM DLDYLGIDNV
LAIQGDKRRN DKSFEPEING NNNASDLLQQ VMEMNKGNYL DPDLVVKTPL KFCVGVACYP
EKHSEAPNLE TDIHYLKLKQ DLGAEYAVTQ MFFDNKKYFN FLDKCRSAGI TLPIIPGIKP
ITGIKQLTML PRDFSIDIPE ELTREVLKAK SPDAIRQVGE EWCTAQCKEL IQHKVPCLHF
YTMGKAHPVK NIVGRL
//
