ID B1LQH7_ECOSM Unreviewed; 602 AA.
AC B1LQH7;
DT 29-APR-2008, integrated into UniProtKB/TrEMBL.
DT 29-APR-2008, sequence version 1.
DT 27-MAR-2024, entry version 92.
DE RecName: Full=Fumarate reductase flavoprotein subunit {ECO:0000256|ARBA:ARBA00014044, ECO:0000256|RuleBase:RU362050};
DE EC=1.3.5.1 {ECO:0000256|ARBA:ARBA00012792, ECO:0000256|RuleBase:RU362050};
GN Name=frdA {ECO:0000313|EMBL:ACB16279.1};
GN OrderedLocusNames=EcSMS35_4625 {ECO:0000313|EMBL:ACB16279.1};
OS Escherichia coli (strain SMS-3-5 / SECEC).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=439855 {ECO:0000313|EMBL:ACB16279.1, ECO:0000313|Proteomes:UP000007011};
RN [1] {ECO:0000313|EMBL:ACB16279.1, ECO:0000313|Proteomes:UP000007011}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SMS-3-5 / SECEC {ECO:0000313|Proteomes:UP000007011};
RX PubMed=18708504; DOI=10.1128/JB.00661-08;
RA Fricke W.F., Wright M.S., Lindell A.H., Harkins D.M., Baker-Austin C.,
RA Ravel J., Stepanauskas R.;
RT "Insights into the environmental resistance gene pool from the genome
RT sequence of the multidrug-resistant environmental isolate Escherichia coli
RT SMS-3-5.";
RL J. Bacteriol. 190:6779-6794(2008).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a menaquinone + succinate = a menaquinol + fumarate;
CC Xref=Rhea:RHEA:27834, Rhea:RHEA-COMP:9537, Rhea:RHEA-COMP:9539,
CC ChEBI:CHEBI:16374, ChEBI:CHEBI:18151, ChEBI:CHEBI:29806,
CC ChEBI:CHEBI:30031; EC=1.3.5.1;
CC Evidence={ECO:0000256|ARBA:ARBA00034412};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a quinone + succinate = a quinol + fumarate;
CC Xref=Rhea:RHEA:40523, ChEBI:CHEBI:24646, ChEBI:CHEBI:29806,
CC ChEBI:CHEBI:30031, ChEBI:CHEBI:132124; EC=1.3.5.1;
CC Evidence={ECO:0000256|ARBA:ARBA00000030,
CC ECO:0000256|RuleBase:RU362050};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|ARBA:ARBA00001974,
CC ECO:0000256|PIRSR:PIRSR630664-51, ECO:0000256|RuleBase:RU362050};
CC -!- SUBUNIT: Part of an enzyme complex containing four subunits: a
CC flavoprotein (FrdA), an iron-sulfur protein (FrdB), and two hydrophobic
CC anchor proteins (FrdC and FrdD). {ECO:0000256|RuleBase:RU362050}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane
CC {ECO:0000256|ARBA:ARBA00004515}; Peripheral membrane protein
CC {ECO:0000256|ARBA:ARBA00004515}; Cytoplasmic side
CC {ECO:0000256|ARBA:ARBA00004515}. Membrane
CC {ECO:0000256|ARBA:ARBA00004287}; Peripheral membrane protein
CC {ECO:0000256|ARBA:ARBA00004287}; Cytoplasmic side
CC {ECO:0000256|ARBA:ARBA00004287}.
CC -!- SIMILARITY: Belongs to the FAD-dependent oxidoreductase 2 family.
CC FRD/SDH subfamily. {ECO:0000256|ARBA:ARBA00008040,
CC ECO:0000256|RuleBase:RU362050}.
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DR EMBL; CP000970; ACB16279.1; -; Genomic_DNA.
DR RefSeq; WP_001192967.1; NC_010498.1.
DR AlphaFoldDB; B1LQH7; -.
DR KEGG; ecm:EcSMS35_4625; -.
DR HOGENOM; CLU_014312_6_2_6; -.
DR Proteomes; UP000007011; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0102040; F:fumarate reductase (menaquinone); IEA:RHEA.
DR GO; GO:0009061; P:anaerobic respiration; IEA:InterPro.
DR GO; GO:0022900; P:electron transport chain; IEA:UniProtKB-UniRule.
DR Gene3D; 3.50.50.60; FAD/NAD(P)-binding domain; 1.
DR Gene3D; 1.20.58.100; Fumarate reductase/succinate dehydrogenase flavoprotein-like, C-terminal domain; 1.
DR Gene3D; 4.10.80.40; succinate dehydrogenase protein domain; 1.
DR Gene3D; 3.90.700.10; Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain; 1.
DR InterPro; IPR003953; FAD-binding_2.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR003952; FRD_SDH_FAD_BS.
DR InterPro; IPR037099; Fum_R/Succ_DH_flav-like_C_sf.
DR InterPro; IPR015939; Fum_Rdtase/Succ_DH_flav-like_C.
DR InterPro; IPR005884; Fum_red_fp.
DR InterPro; IPR030664; SdhA/FrdA/AprA.
DR InterPro; IPR027477; Succ_DH/fumarate_Rdtase_cat_sf.
DR InterPro; IPR014006; Succ_Dhase_FrdA_Gneg.
DR NCBIfam; TIGR01176; fum_red_Fp; 1.
DR NCBIfam; TIGR01812; sdhA_frdA_Gneg; 1.
DR PANTHER; PTHR11632:SF82; FUMARATE REDUCTASE FLAVOPROTEIN SUBUNIT; 1.
DR PANTHER; PTHR11632; SUCCINATE DEHYDROGENASE 2 FLAVOPROTEIN SUBUNIT; 1.
DR Pfam; PF00890; FAD_binding_2; 1.
DR Pfam; PF02910; Succ_DH_flav_C; 1.
DR PIRSF; PIRSF000171; SDHA_APRA_LASPO; 1.
DR PRINTS; PR00368; FADPNR.
DR PRINTS; PR00411; PNDRDTASEI.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
DR SUPFAM; SSF46977; Succinate dehydrogenase/fumarate reductase flavoprotein C-terminal domain; 1.
DR SUPFAM; SSF56425; Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain; 1.
DR PROSITE; PS00504; FRD_SDH_FAD_BINDING; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475};
KW Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW ECO:0000256|RuleBase:RU362050};
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|PIRSR:PIRSR630664-51};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630, ECO:0000256|PIRSR:PIRSR630664-
KW 51}; Membrane {ECO:0000256|ARBA:ARBA00023136};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU362050};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU362050}.
FT DOMAIN 7..397
FT /note="FAD-dependent oxidoreductase 2 FAD binding"
FT /evidence="ECO:0000259|Pfam:PF00890"
FT DOMAIN 453..581
FT /note="Fumarate reductase/succinate dehydrogenase
FT flavoprotein-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02910"
FT REGION 581..602
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 583..602
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 288
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000171-1"
FT BINDING 12..17
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 37..52
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 212
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 233
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 245
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 356
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 380
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 391
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT BINDING 396..397
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
SQ SEQUENCE 602 AA; 66035 MW; 27B401DC89EC762B CRC64;
MQTFQADLAI VGAGGAGLRA AIAAAQANPN AKIALISKVY PMRSHTVAAE GGSAAVAQDH
DSFEYHFHDT VAGGDWLCEQ DVVDYFVHHC PTEMTQLELW GCPWSRRPDG SVNVRRFGGM
KIERTWFAAD KTGFHMLHTL FQTSLQFPQI QRFDEHFVLD ILVDDGHVRG LVAMNMMEGT
LVQIRANAVV MATGGAGRVY RYNTNGGIVT GDGMGMALSH GVPLRDMEFV QYHPTGLPGS
GILMTEGCRG EGGILVNKNG YRYLQDYGMG PETPLGEPKN KYMELGPRDK VSQAFWHEWR
KGNTISTPRG DVVYLDLRHL GEKKLHERLP FICELAKAYV GVDPVKEPIP VRPTAHYTMG
GIETDQNCET RIKGLFAVGE CSSVGLHGAN RLGSNSLAEL VVFGRLAGEQ AMERASTAGN
GNDAAINAQV AGVEQRLKDL VNQDGGENWA KIRDEMGMAM EEGCGIYRTP ELMQKTIDKL
AELQERFKRV RITDTSSVFN TDLLYTIELG HGLNVAECMA HSAMARKESR GAHQRLDEGC
TERDDVNFLK HTLAFRDADG TTRLEYSDVK ITTLPPAKRV YGGEADAADK AEAANKKEKA
NG
//
