ID A0A0E3ZLL3_9BURK Unreviewed; 139 AA.
AC A0A0E3ZLL3;
DT 24-JUN-2015, integrated into UniProtKB/TrEMBL.
DT 24-JUN-2015, sequence version 1.
DT 27-MAR-2024, entry version 31.
DE RecName: Full=Succinate dehydrogenase cytochrome b556 subunit {ECO:0000256|ARBA:ARBA00020076};
GN ORFNames=CL55_00011240 {ECO:0000313|EMBL:AKD25457.1};
OS Polynucleobacter duraquae.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Polynucleobacter.
OX NCBI_TaxID=1835254 {ECO:0000313|EMBL:AKD25457.1, ECO:0000313|Proteomes:UP000061135};
RN [1] {ECO:0000313|EMBL:AKD25457.1, ECO:0000313|Proteomes:UP000061135}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MWH-MoK4 {ECO:0000313|EMBL:AKD25457.1,
RC ECO:0000313|Proteomes:UP000061135};
RA Hahn M.W.;
RT "Genome of Polynucleobacter strain MWH-MoK4.";
RL Submitted (MAR-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Membrane-anchoring subunit of succinate dehydrogenase (SDH).
CC {ECO:0000256|ARBA:ARBA00004050}.
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413;
CC Evidence={ECO:0000256|PIRSR:PIRSR000178-1};
CC Note=The heme is bound between the two transmembrane subunits.
CC {ECO:0000256|PIRSR:PIRSR000178-1};
CC -!- SUBUNIT: Part of an enzyme complex containing four subunits: a
CC flavoprotein, an iron-sulfur protein, plus two membrane-anchoring
CC proteins, SdhC and SdhD. The complex can form homotrimers.
CC {ECO:0000256|ARBA:ARBA00025912}.
CC -!- SIMILARITY: Belongs to the cytochrome b560 family.
CC {ECO:0000256|ARBA:ARBA00007244}.
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DR EMBL; CP007501; AKD25457.1; -; Genomic_DNA.
DR RefSeq; WP_046330238.1; NZ_CP007501.1.
DR AlphaFoldDB; A0A0E3ZLL3; -.
DR STRING; 1835254.CL55_00011240; -.
DR KEGG; pdq:CL55_00011240; -.
DR PATRIC; fig|576611.7.peg.1140; -.
DR HOGENOM; CLU_094691_2_0_4; -.
DR OrthoDB; 9799441at2; -.
DR Proteomes; UP000061135; Chromosome.
DR GO; GO:0045281; C:succinate dehydrogenase complex; IEA:InterPro.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0016627; F:oxidoreductase activity, acting on the CH-CH group of donors; IEA:InterPro.
DR GO; GO:0006099; P:tricarboxylic acid cycle; IEA:InterPro.
DR CDD; cd03499; SQR_TypeC_SdhC; 1.
DR Gene3D; 1.20.1300.10; Fumarate reductase/succinate dehydrogenase, transmembrane subunit; 1.
DR InterPro; IPR034804; SQR/QFR_C/D.
DR InterPro; IPR014314; Succ_DH_cytb556.
DR InterPro; IPR000701; SuccDH_FuR_B_TM-su.
DR NCBIfam; TIGR02970; succ_dehyd_cytB; 1.
DR PANTHER; PTHR10978; SUCCINATE DEHYDROGENASE CYTOCHROME B560 SUBUNIT; 1.
DR PANTHER; PTHR10978:SF5; SUCCINATE DEHYDROGENASE CYTOCHROME B560 SUBUNIT, MITOCHONDRIAL; 1.
DR Pfam; PF01127; Sdh_cyt; 1.
DR PIRSF; PIRSF000178; SDH_cyt_b560; 1.
DR SUPFAM; SSF81343; Fumarate reductase respiratory complex transmembrane subunits; 1.
PE 3: Inferred from homology;
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|PIRSR:PIRSR000178-1};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PIRSR:PIRSR000178-1};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|SAM:Phobius};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRSR:PIRSR000178-1};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius}.
FT TRANSMEM 36..56
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 76..101
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 113..136
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT BINDING 92
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_note="ligand shared with second transmembrane
FT subunit"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|PIRSR:PIRSR000178-1"
SQ SEQUENCE 139 AA; 15575 MW; F44AE1A22C42CCF6 CRC64;
MVDAQQDVKK DRPVYRNIGL AQLIKYRLPW AGKVSILHRI SGAALFLTLP FLLYLLDQSL
ASEMSYQTFQ AITGHVLVKI VLLGLIWSFL HHFCAGIRYL LLDLEIGVEK ADANRSAIIV
FFLGLALTAI VGLKLFGLY
//
