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3.D.10.1.1
Succinate:menaquinone oxidoreductase, SdhABC (pmf consuming when starting with succinate; pmf generating when starting with fumarate (the reverse reaction)).  Transmembrane electron transfer is coupled to protolytic reactions on opposite sides of the membrane, allowing the transmembrane pmf to drive the endergonic oxidation of succinate by menaquinone by the dihaem-containing SQR (Lancaster et al. 2008).

Accession Number:Q65GF4
Protein Name:SdhA
Length:587
Molecular Weight:65271.00
Species:Bacillus licheniformis (strain DSM 13 / ATCC 14580) [279010]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate fumarate(2-), menaquinone, succinate(2-)

Cross database links:

RefSeq: YP_080138.2    YP_092553.1   
Entrez Gene ID: 3027320    3098516   
Pfam: PF00890    PF02910   
BioCyc: BLIC279010-1:BLI02993-MONOMER   
KEGG: bld:BLi02993   

Gene Ontology

GO:0009055 F:electron carrier activity
GO:0016491 F:oxidoreductase activity
GO:0055114 P:oxidation reduction

References (1)

[1] “The complete genome sequence of Bacillus licheniformis DSM13, an organism with great industrial potential.”  Veith B.et.al.   15383718

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MSNSSIIVVG GGLAGLMATI KAAEAGTNVK LFSIVPVKRS HSVCAQGGIN GAVNTKGEGD 
61:	SPWEHFDDTV YGGDFLANQP PVKAMCEAAP SIIHLLDRMG VMFNRTPEGL LDFRRFGGTQ 
121:	HHRTAYAGAT TGQQLLYALD EQVRRFEVEG LVSKYEGWEF LGAVLDDDNT CRGIVAQNLT 
181:	TMEIESFRSD AVIMATGGPG IIFGKSTNSM INTGSAASIV YQQGAYYANG EFIQIHPTAI 
241:	PGDDKLRLMS ESARGEGGRV WTYKDGKPWY FLEEKYPAYG NLVPRDIATR EIFDVCVRQK 
301:	LGINGENMVY LDLSHKDPKE LDIKLGGIIE IYEKFMGDDP RKLPMKIFPA VHYSMGGLWV 
361:	DYDQMTNIPG LFAAGECDYS MHGGNRLGAN SLLSAIYGGM VAGPKAVEYI QGLETSAEDL 
421:	SSSVFDAYVK KEEEKWADIM KMDGNENAYV LHKELGEWMT DNVTVVRYND KLLKTDEKIQ 
481:	ELAERYRNIN INDTAKWSNQ GAVFTRQLHN MLQLARVITL GAYNRNESRG AHYKPDFPER 
541:	NDEEWLKTTM AKHAGDFEAP KFHYEDVDVS LIAPRKRDYS KKKVAKS