ID A0A1H9CAV0_9FLAO Unreviewed; 318 AA.
AC A0A1H9CAV0;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 19.
DE RecName: Full=Methylenetetrahydrofolate reductase {ECO:0000256|RuleBase:RU003862};
DE EC=1.5.1.54 {ECO:0000256|RuleBase:RU003862};
GN ORFNames=SAMN05444005_104130 {ECO:0000313|EMBL:SEP98121.1};
OS Flavobacterium urocaniciphilum.
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC Flavobacteriaceae; Flavobacterium.
OX NCBI_TaxID=1299341 {ECO:0000313|EMBL:SEP98121.1, ECO:0000313|Proteomes:UP000198648};
RN [1] {ECO:0000313|EMBL:SEP98121.1, ECO:0000313|Proteomes:UP000198648}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 27078 {ECO:0000313|EMBL:SEP98121.1,
RC ECO:0000313|Proteomes:UP000198648};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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}.
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DR EMBL; FOEI01000004; SEP98121.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1H9CAV0; -.
DR STRING; 1299341.SAMN05444005_104130; -.
DR OrthoDB; 9812555at2; -.
DR UniPathway; UPA00193; -.
DR Proteomes; UP000198648; 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};
KW Reference proteome {ECO:0000313|Proteomes:UP000198648}.
SQ SEQUENCE 318 AA; 35754 MW; 6BCFBE8CD59394D7 CRC64;
MKVTEHIEKA NGKPLFSFEI LPPLKGQHIQ SIFDSIDPLM EFNPPFIDVT YHREEYEFKE
LENGLLQKKI VKKRPGTVGI CAGIQNKYNV DAIPHILCGG FTKEDTENLL IDLDFLGINN
VVALRGDAVK SEIYFKPEKE GHAFASELVS QINDLNNGIY LDSDLQNTNK TNFCIGVAGY
PEKHMEAPSL DSDIHFLKQK IKNGADYIIT QMFFDNQKFF DFVAKCRAAG ITVPIIPGLK
PIATKKQLNL IPHRFSLELP DDLIMAVVKA KDNEAVKQIG IEWCTQQSKE LIAKGIPVLH
YYSMGKAENI KAIASEVF
//
