ID M4SD74_9SPHN Unreviewed; 122 AA.
AC M4SD74;
DT 29-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 29-MAY-2013, sequence version 1.
DT 27-MAR-2024, entry version 42.
DE RecName: Full=Succinate dehydrogenase cytochrome b556 subunit {ECO:0000256|ARBA:ARBA00020076};
GN ORFNames=G432_04325 {ECO:0000313|EMBL:AGH48592.1};
OS Sphingomonas sp. MM-1.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingomonas.
OX NCBI_TaxID=745310 {ECO:0000313|EMBL:AGH48592.1, ECO:0000313|Proteomes:UP000011816};
RN [1] {ECO:0000313|EMBL:AGH48592.1, ECO:0000313|Proteomes:UP000011816}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MM-1 {ECO:0000313|EMBL:AGH48592.1};
RX PubMed=23682148;
RA Tabata M., Ohtsubo Y., Ohhata S., Tsuda M., Nagata Y.;
RT "Complete Genome Sequence of the gamma-Hexachlorocyclohexane-Degrading
RT Bacterium Sphingomonas sp. Strain MM-1.";
RL Genome Announc. 1:E00247-13(2013).
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; CP004036; AGH48592.1; -; Genomic_DNA.
DR AlphaFoldDB; M4SD74; -.
DR STRING; 745310.G432_04325; -.
DR KEGG; sphm:G432_04325; -.
DR PATRIC; fig|745310.14.peg.888; -.
DR eggNOG; COG2009; Bacteria.
DR HOGENOM; CLU_094691_3_1_5; -.
DR Proteomes; UP000011816; 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 Reference proteome {ECO:0000313|Proteomes:UP000011816};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius}.
FT TRANSMEM 12..30
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 51..72
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 97..120
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT BINDING 74
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 122 AA; 13259 MW; 6830F10E55B9E104 CRC64;
MLVSILHRAT GTALAIGGGI LFAWWLAAAA SGPDYYESFR YYAVQAEAGD TLGCIVNVLA
RIVAIGLTWS FFQHLFSGLR HFVLDTGAGY ELKTNRMWSI LTIVGSITFT ALIWGCILLA
RG
//
