ID Q3B067_SYNS9 Unreviewed; 297 AA.
AC Q3B067;
DT 22-NOV-2005, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2005, sequence version 1.
DT 27-MAR-2024, entry version 100.
DE RecName: Full=Methylenetetrahydrofolate reductase {ECO:0000256|RuleBase:RU003862};
GN OrderedLocusNames=Syncc9902_0288 {ECO:0000313|EMBL:ABB25261.1};
OS Synechococcus sp. (strain CC9902).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Synechococcaceae;
OC Synechococcus.
OX NCBI_TaxID=316279 {ECO:0000313|EMBL:ABB25261.1, ECO:0000313|Proteomes:UP000002712};
RN [1] {ECO:0000313|Proteomes:UP000002712}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CC9902 {ECO:0000313|Proteomes:UP000002712};
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Martinez M., Schmutz J., Larimer F.,
RA Land M., Kyrpides N., Ivanova N., Richardson P.;
RT "Complete sequence of Synechococcus sp. CC9902.";
RL Submitted (AUG-2005) 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: 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; CP000097; ABB25261.1; -; Genomic_DNA.
DR RefSeq; WP_011359119.1; NC_007513.1.
DR AlphaFoldDB; Q3B067; -.
DR STRING; 316279.Syncc9902_0288; -.
DR KEGG; sye:Syncc9902_0288; -.
DR eggNOG; COG0685; Bacteria.
DR HOGENOM; CLU_057297_2_0_3; -.
DR OrthoDB; 9803687at2; -.
DR UniPathway; UPA00193; -.
DR Proteomes; UP000002712; Chromosome.
DR GO; GO:0106312; F:methylenetetrahydrofolate reductase NADH activity; IEA:RHEA.
DR GO; GO:0006555; P:methionine metabolic process; IEA:InterPro.
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 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 FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|RuleBase:RU003862};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630,
KW ECO:0000256|RuleBase:RU003862};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU003862}.
SQ SEQUENCE 297 AA; 31730 MW; 4A8FDB35C642CD3B CRC64;
MKTALQCAIE AGKQALTAEV MPPRGADPAH MLAMAAHLQG RVHALNVTDG SRAVMRMSSV
AACKLLIEAG AEPVLQLACR DRNRIALQAD LLGAHALGIR NLLCLTGDPV RSGDQPSVRP
VNELESVKLL QQVEALNRGE DPVKGSLPDG ATALFPGCAA DPHSRSWSGL QRRLQRKAGA
GARFVQTQMV MDPQVLDRFQ RELAGPLQLP VLAGVFLLKS AKNALFINRV VPGACIPEHL
IERLEGASNP AMEGVSIAAE QVRQYLGIVQ GVHLMAIKAE ERIPLILDQA NISSPTT
//
