ID   D8PX18_SCHCM            Unreviewed;       639 AA.
AC   D8PX18;
DT   05-OCT-2010, integrated into UniProtKB/TrEMBL.
DT   05-OCT-2010, sequence version 1.
DT   27-MAR-2024, entry version 63.
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=SCHCODRAFT_74617 {ECO:0000313|EMBL:EFJ01131.1};
OS   Schizophyllum commune (strain H4-8 / FGSC 9210) (Split gill fungus).
OC   Eukaryota; Fungi; Dikarya; Basidiomycota; Agaricomycotina; Agaricomycetes;
OC   Agaricomycetidae; Agaricales; Schizophyllaceae; Schizophyllum.
OX   NCBI_TaxID=578458 {ECO:0000313|Proteomes:UP000007431};
RN   [1] {ECO:0000313|EMBL:EFJ01131.1, ECO:0000313|Proteomes:UP000007431}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=H4-8 / FGSC 9210 {ECO:0000313|Proteomes:UP000007431};
RX   PubMed=20622885; DOI=10.1038/nbt.1643;
RA   Ohm R.A., de Jong J.F., Lugones L.G., Aerts A., Kothe E., Stajich J.E.,
RA   de Vries R.P., Record E., Levasseur A., Baker S.E., Bartholomew K.A.,
RA   Coutinho P.M., Erdmann S., Fowler T.J., Gathman A.C., Lombard V.,
RA   Henrissat B., Knabe N., Kuees U., Lilly W.W., Lindquist E., Lucas S.,
RA   Magnuson J.K., Piumi F., Raudaskoski M., Salamov A., Schmutz J.,
RA   Schwarze F.W.M.R., vanKuyk P.A., Horton J.S., Grigoriev I.V.,
RA   Woesten H.A.B.;
RT   "Genome sequence of the model mushroom Schizophyllum commune.";
RL   Nat. Biotechnol. 28:957-963(2010).
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|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; GL377303; EFJ01131.1; -; Genomic_DNA.
DR   RefSeq; XP_003036033.1; XM_003035987.1.
DR   AlphaFoldDB; D8PX18; -.
DR   STRING; 578458.D8PX18; -.
DR   GeneID; 9595894; -.
DR   KEGG; scm:SCHCO_02605941; -.
DR   VEuPathDB; FungiDB:SCHCODRAFT_02605941; -.
DR   eggNOG; KOG2403; Eukaryota.
DR   HOGENOM; CLU_014312_6_1_1; -.
DR   InParanoid; D8PX18; -.
DR   OMA; FHPTGIW; -.
DR   OrthoDB; 551958at2759; -.
DR   UniPathway; UPA00223; UER01006.
DR   Proteomes; UP000007431; Unassembled WGS sequence.
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:0016705; F:oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen; IEA:UniProt.
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   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   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,
KW   ECO:0000256|RuleBase:RU362051};
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:UP000007431};
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          53..448
FT                   /note="FAD-dependent oxidoreductase 2 FAD binding"
FT                   /evidence="ECO:0000259|Pfam:PF00890"
FT   DOMAIN          503..639
FT                   /note="Fumarate reductase/succinate dehydrogenase
FT                   flavoprotein-like C-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF02910"
FT   REGION          576..595
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        578..595
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        330
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000171-1"
FT   MOD_RES         89
FT                   /note="Tele-8alpha-FAD histidine"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR611281-4"
SQ   SEQUENCE   639 AA;  70250 MW;  C23674562ADEF6C1 CRC64;
     MFRPTLRKCL LRPHRSFSTT APARKVVATN PVKAQEVPSW ASGKYPLIEH EYDAVVVGAG
     GAGLRAAFGL AEAGFNTACI TKLFPTRSHT VAAQGGINAA LGNMTEDDWR WHMYDTVKGS
     DWLGDQDAIH YMCREAPKTV IELEHFGVPF SRTKEGKIYQ RAFGGQSLKY GKGGQAYRCA
     AAADRTGHAL LHTLYGQSLR HNTNFFIEYF ALDLIMQDGE CVGVIALNLE DGTLHRFRSH
     KTVLATGGYG RAYFSCTSAH TCTGDGNAMV ARAGLPLQDL EFVQFHPTGI YGAGCLITEG
     SRGEGGYLLN SEGERFMERY APTAKDLASR DVVSRSMTIE IREGRGVGPE KDHCYLQLSH
     LPAEILHERL PGISETAAIF SGVDVTKEPI PVLPTVHYNM GGIPTKYTGE VITVDENGKD
     KVVPGLYAAG EAACVSVHGA NRLGANSLLD IVVFGRACAH HIEETLTPGK PHKKIPDEAG
     IESIEFLDQI RKADGPIPTA KIRLDLQKAM QSDAAVFRTQ ESLDEGVQKV KQIYETYKDV
     GIKDRSMIWN SDLVETLELR NLLQCAVQTI TSAAARKESR GAHAREDFPE RDDESWMKHT
     LSFQNDSTKP DVKLSYRGVI DKTLDENECK AVPPFKRVY
//