SDHB_UROFA
ID SDHB_UROFA Reviewed; 283 AA.
AC Q70KF8;
DT 31-AUG-2004, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 78.
DE RecName: Full=Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial;
DE EC=1.3.5.1;
DE AltName: Full=Iron-sulfur subunit of complex II;
DE Short=Ip;
DE Flags: Precursor;
GN Name=SDH2; Synonyms=sucDH1;
OS Uromyces fabae (Rust fungus).
OC Eukaryota; Fungi; Dikarya; Basidiomycota; Pucciniomycotina;
OC Pucciniomycetes; Pucciniales; Pucciniaceae; Uromyces.
OX NCBI_TaxID=55588;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Wirsel S.G.R., Voegele R.T., Baenninger R., Hahn M., Mendgen K.W.;
RT "Prelude to transformation: characterization of the beta-tubulin and
RT succinate dehydrogenase genes from the rust fungus Uromyces fabae.";
RL Submitted (JUL-2003) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Iron-sulfur protein (IP) subunit of succinate dehydrogenase
CC (SDH) that is involved in complex II of the mitochondrial electron
CC transport chain and is responsible for transferring electrons from
CC succinate to ubiquinone (coenzyme Q). {ECO:0000250}.
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 -!- COFACTOR:
CC Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135; Evidence={ECO:0000250};
CC Note=Binds 1 [2Fe-2S] cluster. {ECO:0000250};
CC -!- COFACTOR:
CC Name=[3Fe-4S] cluster; Xref=ChEBI:CHEBI:21137; Evidence={ECO:0000250};
CC Note=Binds 1 [3Fe-4S] cluster. {ECO:0000250};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883; Evidence={ECO:0000250};
CC Note=Binds 1 [4Fe-4S] cluster. {ECO:0000250};
CC -!- PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; fumarate
CC from succinate (eukaryal route): step 1/1.
CC -!- SUBUNIT: Component of complex II composed of four subunits: a
CC flavoprotein (FP), an iron-sulfur protein (IP), and a cytochrome b
CC composed of a large and a small subunit. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane {ECO:0000250};
CC Peripheral membrane protein {ECO:0000250}; Matrix side {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the succinate dehydrogenase/fumarate reductase
CC iron-sulfur protein family. {ECO:0000305}.
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DR EMBL; AJ575686; CAE02642.1; -; Genomic_DNA.
DR AlphaFoldDB; Q70KF8; -.
DR SMR; Q70KF8; -.
DR PRIDE; Q70KF8; -.
DR UniPathway; UPA00223; UER01006.
DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0051538; F:3 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008177; F:succinate dehydrogenase (ubiquinone) activity; IEA:UniProtKB-EC.
DR GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniPathway.
DR CDD; cd00207; fer2; 1.
DR Gene3D; 1.10.1060.10; -; 1.
DR Gene3D; 3.10.20.30; -; 1.
DR InterPro; IPR036010; 2Fe-2S_ferredoxin-like_sf.
DR InterPro; IPR001041; 2Fe-2S_ferredoxin-type.
DR InterPro; IPR006058; 2Fe2S_fd_BS.
DR InterPro; IPR017896; 4Fe4S_Fe-S-bd.
DR InterPro; IPR017900; 4Fe4S_Fe_S_CS.
DR InterPro; IPR012675; Beta-grasp_dom_sf.
DR InterPro; IPR009051; Helical_ferredxn.
DR InterPro; IPR004489; Succ_DH/fum_Rdtase_Fe-S.
DR InterPro; IPR025192; Succ_DH/fum_Rdtase_N.
DR Pfam; PF13085; Fer2_3; 1.
DR SUPFAM; SSF54292; SSF54292; 1.
DR TIGRFAMs; TIGR00384; dhsB; 1.
DR PROSITE; PS00197; 2FE2S_FER_1; 1.
DR PROSITE; PS51085; 2FE2S_FER_2; 1.
DR PROSITE; PS00198; 4FE4S_FER_1; 1.
DR PROSITE; PS51379; 4FE4S_FER_2; 1.
PE 3: Inferred from homology;
KW 2Fe-2S; 3Fe-4S; 4Fe-4S; Electron transport; Iron; Iron-sulfur; Membrane;
KW Metal-binding; Mitochondrion; Mitochondrion inner membrane; Oxidoreductase;
KW Transit peptide; Transport; Tricarboxylic acid cycle.
FT TRANSIT 1..?
FT /note="Mitochondrion"
FT CHAIN ?..283
FT /note="Succinate dehydrogenase [ubiquinone] iron-sulfur
FT subunit, mitochondrial"
FT /id="PRO_0000010351"
FT DOMAIN 66..145
FT /note="2Fe-2S ferredoxin-type"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00465"
FT DOMAIN 186..216
FT /note="4Fe-4S ferredoxin-type"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00711"
FT BINDING 105
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000250"
FT BINDING 110
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000250"
FT BINDING 113
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000250"
FT BINDING 125
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000250"
FT BINDING 196
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000250"
FT BINDING 199
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000250"
FT BINDING 202
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000250"
FT BINDING 206
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000250"
FT BINDING 211
FT /ligand="a ubiquinone"
FT /ligand_id="ChEBI:CHEBI:16389"
FT /ligand_note="ligand shared with DHSD"
FT /evidence="ECO:0000250"
FT BINDING 253
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000250"
FT BINDING 259
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000250"
FT BINDING 263
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000250"
SQ SEQUENCE 283 AA; 32104 MW; 058945BABE06185F CRC64;
MINIPNSIRP FIRSANRTPC YLRSISSSSS SSFATPAEEH AGKQPSSAVP VKEFSIYRWN
PDEPSKKPTL QTYSIDLKKC GPMVLDALIK IKNELDPTLT FRRSCREGIC GSCAMNIDGV
NTLACLKRIN KETSAPVKIY PLPHMYIIKD LVPDMTHFYK QYKSIEPFLK NDNPPAQGEF
LQSPEDRKKL DGMYECILCA CCSTSCPSYW WNQDEYLGPA VLMQAYRWMA DSRDSYGEDR
KEKLQNTLSL YRCHTIFNCT KTCPKGLNPA KAISHIKREM ASA
