ID A0A1X9YKD5_9SPHN Unreviewed; 313 AA.
AC A0A1X9YKD5;
DT 30-AUG-2017, integrated into UniProtKB/TrEMBL.
DT 30-AUG-2017, sequence version 1.
DT 27-MAR-2024, entry version 23.
DE RecName: Full=Methylenetetrahydrofolate reductase {ECO:0000256|RuleBase:RU003862};
DE EC=1.5.1.54 {ECO:0000256|RuleBase:RU003862};
GN ORFNames=KC8_18540 {ECO:0000313|EMBL:ARS29275.1};
OS Sphingomonas sp. KC8.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingomonas.
OX NCBI_TaxID=1030157 {ECO:0000313|EMBL:ARS29275.1, ECO:0000313|Proteomes:UP000194475};
RN [1] {ECO:0000313|EMBL:ARS29275.1, ECO:0000313|Proteomes:UP000194475}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KC8 {ECO:0000313|EMBL:ARS29275.1};
RA Chen Y.-L., Yu C.-P., Hu A., Lee T.-H., Yang F.-C., Ismail W., Wang P.-H.,
RA Wang C.-H., Goh K.-S., Shih C.-J., Chiang Y.-R.;
RT "Bacteria use an extradiol dioxygenase-mediated pathway to degrade natural
RT estrogens in aquatic ecosystems.";
RL Submitted (JUN-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; CP016306; ARS29275.1; -; Genomic_DNA.
DR RefSeq; WP_029624708.1; NZ_CP016306.1.
DR AlphaFoldDB; A0A1X9YKD5; -.
DR STRING; 1030157.GCA_000214335_01115; -.
DR KEGG; spkc:KC8_18540; -.
DR eggNOG; COG0685; Bacteria.
DR OrthoDB; 9812555at2; -.
DR UniPathway; UPA00193; -.
DR Proteomes; UP000194475; Chromosome.
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:UP000194475}.
SQ SEQUENCE 313 AA; 33916 MW; 0230520113DCB79A CRC64;
MSVSIAQMEE ARRALDAPLF ADLAGDCQVS FEFFPPKTAK MEETLWSAIE TLAPLGPRFV
SVTYGAGGST RERTHATVAR IARETSIPAA AHLTCVDASR DEILDVAREY WAAGVRHIVA
LRGDPPREGE AFQPHPDGFE NAAALVAGLK SVAPFEISVA AYPECHPDSV DVAADLDNLK
RKIDAGANRA ISQFFFSPEA FFRFRDAVAA AGIDAEIVPG ILPVSNVAQT RKFAAMCGAA
IPPWMDRLFE GLDDRPAARQ LVAATIAAEM CRKLYAGGVR HFHFYTLNRA ELSYAICHLL
GLRPTSQSRE KAA
//
