ID   G2REZ3_THETT            Unreviewed;       648 AA.
AC   G2REZ3;
DT   16-NOV-2011, integrated into UniProtKB/TrEMBL.
DT   16-NOV-2011, sequence version 1.
DT   27-MAR-2024, entry version 53.
DE   RecName: Full=Succinate dehydrogenase [ubiquinone] flavoprotein subunit, mitochondrial {ECO:0000256|RuleBase:RU362051};
DE            EC=1.3.5.1 {ECO:0000256|RuleBase:RU362051};
GN   ORFNames=THITE_61645 {ECO:0000313|EMBL:AEO70276.1};
OS   Thermothielavioides terrestris (strain ATCC 38088 / NRRL 8126) (Thielavia
OS   terrestris).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC   Sordariomycetidae; Sordariales; Chaetomiaceae; Thermothielavioides;
OC   Thermothielavioides terrestris.
OX   NCBI_TaxID=578455 {ECO:0000313|EMBL:AEO70276.1, ECO:0000313|Proteomes:UP000008181};
RN   [1] {ECO:0000313|EMBL:AEO70276.1, ECO:0000313|Proteomes:UP000008181}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 38088 / NRRL 8126 {ECO:0000313|Proteomes:UP000008181};
RX   PubMed=21964414; DOI=10.1038/nbt.1976;
RA   Berka R.M., Grigoriev I.V., Otillar R., Salamov A., Grimwood J., Reid I.,
RA   Ishmael N., John T., Darmond C., Moisan M.-C., Henrissat B., Coutinho P.M.,
RA   Lombard V., Natvig D.O., Lindquist E., Schmutz J., Lucas S., Harris P.,
RA   Powlowski J., Bellemare A., Taylor D., Butler G., de Vries R.P.,
RA   Allijn I.E., van den Brink J., Ushinsky S., Storms R., Powell A.J.,
RA   Paulsen I.T., Elbourne L.D.H., Baker S.E., Magnuson J., LaBoissiere S.,
RA   Clutterbuck A.J., Martinez D., Wogulis M., de Leon A.L., Rey M.W.,
RA   Tsang A.;
RT   "Comparative genomic analysis of the thermophilic biomass-degrading fungi
RT   Myceliophthora thermophila and Thielavia terrestris.";
RL   Nat. Biotechnol. 29:922-927(2011).
CC   -!- FUNCTION: Flavoprotein (FP) subunit of succinate dehydrogenase (SDH)
CC       that is involved in complex II of the mitochondrial electron transport
CC       chain and is responsible for transferring electrons from succinate to
CC       ubiquinone (coenzyme Q). {ECO:0000256|RuleBase:RU362051}.
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|RuleBase:RU362051};
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692;
CC         Evidence={ECO:0000256|ARBA:ARBA00001974,
CC         ECO:0000256|PIRSR:PIRSR630664-51, ECO:0000256|RuleBase:RU362051};
CC   -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; fumarate
CC       from succinate (eukaryal route): step 1/1.
CC       {ECO:0000256|RuleBase:RU362051}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC       {ECO:0000256|RuleBase:RU362051}; Peripheral membrane protein
CC       {ECO:0000256|RuleBase:RU362051}; Matrix side
CC       {ECO:0000256|RuleBase:RU362051}.
CC   -!- SIMILARITY: Belongs to the FAD-dependent oxidoreductase 2 family.
CC       FRD/SDH subfamily. {ECO:0000256|ARBA:ARBA00008040,
CC       ECO:0000256|RuleBase:RU362051}.
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DR   EMBL; CP003013; AEO70276.1; -; Genomic_DNA.
DR   RefSeq; XP_003656612.1; XM_003656564.1.
DR   AlphaFoldDB; G2REZ3; -.
DR   STRING; 578455.G2REZ3; -.
DR   GeneID; 11522581; -.
DR   KEGG; ttt:THITE_61645; -.
DR   eggNOG; KOG2403; Eukaryota.
DR   HOGENOM; CLU_014312_6_1_1; -.
DR   OrthoDB; 551958at2759; -.
DR   UniPathway; UPA00223; UER01006.
DR   Proteomes; UP000008181; Chromosome 5.
DR   GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR   GO; GO:0102040; F:fumarate reductase (menaquinone); IEA:UniProtKB-EC.
DR   GO; GO:0008177; F:succinate dehydrogenase (ubiquinone) activity; IEA:UniProtKB-EC.
DR   GO; GO:0022900; P:electron transport chain; IEA:InterPro.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniPathway.
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; IPR030664; SdhA/FrdA/AprA.
DR   InterPro; IPR027477; Succ_DH/fumarate_Rdtase_cat_sf.
DR   InterPro; IPR011281; Succ_DH_flav_su_fwd.
DR   InterPro; IPR014006; Succ_Dhase_FrdA_Gneg.
DR   NCBIfam; TIGR01816; sdhA_forward; 1.
DR   NCBIfam; TIGR01812; sdhA_frdA_Gneg; 1.
DR   PANTHER; PTHR11632; SUCCINATE DEHYDROGENASE 2 FLAVOPROTEIN SUBUNIT; 1.
DR   PANTHER; PTHR11632:SF51; SUCCINATE DEHYDROGENASE [UBIQUINONE] FLAVOPROTEIN SUBUNIT, MITOCHONDRIAL; 1.
DR   Pfam; PF00890; FAD_binding_2; 1.
DR   Pfam; PF02910; Succ_DH_flav_C; 1.
DR   PIRSF; PIRSF000171; SDHA_APRA_LASPO; 1.
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   Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW   ECO:0000256|RuleBase:RU362051};
KW   FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|PIRSR:PIRSR611281-4};
KW   Flavoprotein {ECO:0000256|ARBA:ARBA00022630, ECO:0000256|PIRSR:PIRSR630664-
KW   51};
KW   Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|RuleBase:RU362051};
KW   Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW   ECO:0000256|RuleBase:RU362051};
KW   Reference proteome {ECO:0000313|Proteomes:UP000008181};
KW   Transit peptide {ECO:0000256|RuleBase:RU362051};
KW   Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU362051};
KW   Tricarboxylic acid cycle {ECO:0000256|RuleBase:RU362051}.
FT   DOMAIN          63..458
FT                   /note="FAD-dependent oxidoreductase 2 FAD binding"
FT                   /evidence="ECO:0000259|Pfam:PF00890"
FT   DOMAIN          513..648
FT                   /note="Fumarate reductase/succinate dehydrogenase
FT                   flavoprotein-like C-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF02910"
FT   ACT_SITE        340
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000171-1"
FT   BINDING         68..73
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         91..106
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         275
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         296
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         308
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         407
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         441
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         452
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   BINDING         457..458
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR630664-51"
FT   MOD_RES         99
FT                   /note="Tele-8alpha-FAD histidine"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR611281-4"
SQ   SEQUENCE   648 AA;  71178 MW;  4EC1CC0CBF5F9DEE CRC64;
     MASSMAWRRL AAAPALSRAF RNPTRAFSTT RPVARVIANG PLRAKEASPF VSNKYPVIDH
     EYDAIVVGAG GAGLRAAFGL AEAGFNTACI SKLFPTRSHT VAAQGGINAA LGNMHEDDWR
     WHMYDTVKGS DWLGDQDAIH YMTREAPASI IELEHYGCPF SRTEDGKIYQ RAFGGQSQKY
     GKGGQAYRCC AAADRTGHAL LHTLYGQSLR HNTNYFIEYF AIDLIMQDGE CRGVLAYNQE
     DGTLHRFFAN NTVLATGGYG RAYFSCTSAH TCTGDGMAMV ARAGLPNQDL EFVQFHPTGI
     YGAGCLITEG ARGEGGYLLN SEGERFMERY APTAKDLASR DVVSRSMTLE IREGRGVGPE
     KDHIYLQLSH LPAEILAERL PGISETAGIF AGVDVRKQPI PVLPTVHYNM GGIPTRYTGE
     VLTVDEQGND KVVPGLFACG EAACVSVHGA NRLGANSLLD LVVFGRAVSH TIRDKFTPGA
     PLKPVEADAG AQSIETLDKI RTSNGPKSTA EIRLAMQKTM QREVSVFRTQ ESLDEGVRQI
     TEVDKMFSQV GIKDRSMIWN SDLVETLELR NLLTCATQTA VSAANRKESR GAHAREDYPE
     RDDENWMKHT LSWQKTPHGP VELKYRRVIS TTLDENECKP VPPFKRVY
//