ID Q126N7_POLSJ Unreviewed; 148 AA.
AC Q126N7;
DT 22-AUG-2006, integrated into UniProtKB/TrEMBL.
DT 22-AUG-2006, sequence version 1.
DT 27-MAR-2024, entry version 90.
DE RecName: Full=Succinate dehydrogenase cytochrome b556 subunit {ECO:0000256|ARBA:ARBA00020076};
GN OrderedLocusNames=Bpro_3600 {ECO:0000313|EMBL:ABE45505.1};
OS Polaromonas sp. (strain JS666 / ATCC BAA-500).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Comamonadaceae; Polaromonas.
OX NCBI_TaxID=296591 {ECO:0000313|EMBL:ABE45505.1, ECO:0000313|Proteomes:UP000001983};
RN [1] {ECO:0000313|Proteomes:UP000001983}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JS666 / ATCC BAA-500 {ECO:0000313|Proteomes:UP000001983};
RX PubMed=18723656; DOI=10.1128/AEM.00197-08;
RA Mattes T.E., Alexander A.K., Richardson P.M., Munk A.C., Han C.S.,
RA Stothard P., Coleman N.V.;
RT "The genome of Polaromonas sp. strain JS666: insights into the evolution of
RT a hydrocarbon- and xenobiotic-degrading bacterium, and features of
RT relevance to biotechnology.";
RL Appl. Environ. Microbiol. 74:6405-6416(2008).
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; CP000316; ABE45505.1; -; Genomic_DNA.
DR RefSeq; WP_011484499.1; NC_007948.1.
DR AlphaFoldDB; Q126N7; -.
DR STRING; 296591.Bpro_3600; -.
DR KEGG; pol:Bpro_3600; -.
DR eggNOG; COG2009; Bacteria.
DR HOGENOM; CLU_094691_2_0_4; -.
DR OrthoDB; 9799441at2; -.
DR Proteomes; UP000001983; 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 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 Oxidoreductase {ECO:0000313|EMBL:ABE45505.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000001983};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius}.
FT TRANSMEM 37..57
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 78..98
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 126..145
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT BINDING 100
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 148 AA; 16323 MW; E6EBFCF6B509C205 CRC64;
MSESATTVAK KRPEFRNINA FTDLPSYRLP LAGLVSILHR ISGAIMFLLM PFIIWMFDTS
ISSEISFSRF KSAFNAGMLG LPGFLWKLVA LALIWAYLHH FIAGLRHLWM DTSHAAVSKE
FGKSSAAVTL AVSIGLTLVL GAKLFGLY
//
