ID A4SWW2_POLAQ Unreviewed; 139 AA.
AC A4SWW2;
DT 15-MAY-2007, integrated into UniProtKB/TrEMBL.
DT 15-MAY-2007, sequence version 1.
DT 27-MAR-2024, entry version 86.
DE RecName: Full=Succinate dehydrogenase cytochrome b556 subunit {ECO:0000256|ARBA:ARBA00020076};
GN OrderedLocusNames=Pnuc_0758 {ECO:0000313|EMBL:ABP33976.1};
OS Polynucleobacter asymbioticus (strain DSM 18221 / CIP 109841 /
OS QLW-P1DMWA-1) (Polynucleobacter necessarius subsp. asymbioticus).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Polynucleobacter.
OX NCBI_TaxID=312153 {ECO:0000313|EMBL:ABP33976.1, ECO:0000313|Proteomes:UP000000231};
RN [1] {ECO:0000313|EMBL:ABP33976.1, ECO:0000313|Proteomes:UP000000231}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 18221 / CIP 109841 / QLW-P1DMWA-1
RC {ECO:0000313|Proteomes:UP000000231};
RX PubMed=22675600; DOI=10.4056/sigs.2395367;
RA Meincke L., Copeland A., Lapidus A., Lucas S., Berry K.W., Del Rio T.G.,
RA Hammon N., Dalin E., Tice H., Pitluck S., Richardson P., Bruce D.,
RA Goodwin L., Han C., Tapia R., Detter J.C., Schmutz J., Brettin T.,
RA Larimer F., Land M., Hauser L., Kyrpides N.C., Ivanova N., Goker M.,
RA Woyke T., Wu Q.L., Pockl M., Hahn M.W., Klenk H.P.;
RT "Complete genome sequence of Polynucleobacter necessarius subsp.
RT asymbioticus type strain (QLW-P1DMWA-1(T)).";
RL Stand. Genomic Sci. 6:74-83(2012).
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; CP000655; ABP33976.1; -; Genomic_DNA.
DR RefSeq; WP_011902601.1; NC_009379.1.
DR AlphaFoldDB; A4SWW2; -.
DR GeneID; 31481119; -.
DR KEGG; pnu:Pnuc_0758; -.
DR eggNOG; COG2009; Bacteria.
DR HOGENOM; CLU_094691_2_0_4; -.
DR Proteomes; UP000000231; 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 Oxidoreductase {ECO:0000313|EMBL:ABP33976.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000000231};
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 116..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; 15625 MW; 66334AB0D265BDEB CRC64;
MVEAQQNVKK DRPVYRNIGL AQLVKYRLPW AGKVSILHRI SGAVLFLMLP FLLYLLDQSL
ASEVSYQKFQ AITGHVLVKI VCLGLIWCFL HHFCAGIRYL LLDLEIGVEK SEANRSAIFV
FCLGVALTAV VGLKLFGLY
//
