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Reviewed, UniProtKB/Swiss-Prot Q8ZQU2 (DHSB_SALTY)

Last modified June 16, 2009. Version 55. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Succinate dehydrogenase iron-sulfur subunit
    EC=1.3.99.1
Gene names
Name: sdhB
Ordered Locus Names: STM0735
OrganismSalmonella typhimurium [Complete proteome] [HAMAP]
Taxonomic identifier90371 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeSalmonella

Protein attributes

Sequence length238 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is not processed.
Protein existenceInferred from homology.

General annotation (Comments)

Function

Two distinct, membrane-bound, FAD-containing enzymes are responsible for the catalysis of fumarate and succinate interconversion; the fumarate reductase is used in anaerobic growth, and the succinate dehydrogenase is used in aerobic growth By similarity.

Catalytic activity

Succinate + acceptor = fumarate + reduced acceptor.

Cofactor

Binds 1 2Fe-2S cluster.

Binds 1 3Fe-4S cluster.

Binds 1 4Fe-4S cluster.

Pathway

Carbohydrate metabolism; tricarboxylic acid cycle.

Subunit structure

Part of an enzyme complex containing four subunits: a flavoprotein, an iron-sulfur, cytochrome b-556, and an hydrophobic anchor protein By similarity.

Sequence similarities

Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family.

Contains 1 2Fe-2S ferredoxin-type domain.

Contains 1 4Fe-4S ferredoxin-type domain.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 238238Succinate dehydrogenase iron-sulfur subunit
PRO_0000158692

Regions

Domain1 – 97972Fe-2S ferredoxin-type
Domain139 – 169314Fe-4S ferredoxin-type

Sites

Metal binding551Iron-sulfur 1 (2Fe-2S) By similarity
Metal binding601Iron-sulfur 1 (2Fe-2S) By similarity
Metal binding631Iron-sulfur 1 (2Fe-2S) Potential
Metal binding751Iron-sulfur 1 (2Fe-2S) By similarity
Metal binding1491Iron-sulfur 2 (4Fe-4S) By similarity
Metal binding1521Iron-sulfur 2 (4Fe-4S) By similarity
Metal binding1551Iron-sulfur 2 (4Fe-4S) By similarity
Metal binding1591Iron-sulfur 3 (3Fe-4S) By similarity
Metal binding2061Iron-sulfur 3 (3Fe-4S) By similarity
Metal binding2121Iron-sulfur 3 (3Fe-4S) By similarity
Metal binding2161Iron-sulfur 2 (4Fe-4S) By similarity

Sequences

Sequence LengthMass (Da)Tools
Q8ZQU2-1 [UniParc].

Last modified June 6, 2002. Version 2.
Checksum: 7628F9F9F95611F3

FASTA23826,733
        10         20         30         40         50         60 
MKLEFSIYRY NPDVDNAPRM QDYTLEGEEG RDMMLLDALI QLKEKDPSLS FRRSCREGVC 

        70         80         90        100        110        120 
GSDGLNMNGK NGLACITPIS ALTQPGKKIV IRPLPGLPVI RDLVVDMGQF YAQYEKIKPY 

       130        140        150        160        170        180 
LLNNGQNPPA REHLQMPEQR EKLDGLYECI LCACCSTSCP SFWWNPDKFI GPAGLLAAYR 

       190        200        210        220        230 
FLIDSRDTET DSRLEGMSDA FSVFRCHSIM NCVSVCPKGL NPTRAIGHIK SMLLQRSA 

« Hide

Cross-references

Sequence databases

AE008730 Genomic DNA. Translation: AAL19679.1. Different initiation.
RefSeqNP_459720.1.

3D structure databases

HSSPHSSP built from PDB template 1NEK based on UniProtKB P07014.
SMRQ8ZQU2. Positions 1-238.
ModBaseSearch...

Genome annotation databases

GeneID1252255.
GenomeReviewsGene locus STM0735 in contig AE006468_GR.
KEGGstm:STM0735.

Organism-specific databases

CMRSearch...

Phylogenomic databases

HOGENOMQ8ZQU2.
OMAQ8ZQU2. LIVDMEP.

Enzyme and pathway databases

BioCycSTYP99287:STM0735-MON.
BRENDA1.3.99.1. 2.

Family and domain databases

InterProIPR006058. 2Fe2S_fd_BS.
IPR017896. 4Fe4S_Fe-S-bd.
IPR017900. 4Fe4S_Fe_S_CS.
IPR012675. b-grasp_ferredoxin-like.
IPR001041. Ferredoxin.
IPR012285. Fum_reductase_C.
IPR004489. Succ_DH/fum_Rdtase_Fe-S.
[Graphical view]
Gene3DG3DSA:3.10.20.30. Ferredoxin_fold. 1 hit.
G3DSA:1.10.1060.10. Fum_reductase_C. 1 hit.
TIGRFAMsTIGR00384. dhsB. 1 hit.
PROSITEPS00197. 2FE2S_FER_1. False negative.
PS51085. 2FE2S_FER_2. 1 hit.
PS00198. 4FE4S_FER_1. 1 hit.
PS51379. 4FE4S_FER_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameDHSB_SALTY
AccessionPrimary (citable) accession number: Q8ZQU2
Entry history
Integrated into UniProtKB/Swiss-Prot: June 6, 2002
Last sequence update: June 6, 2002
Last modified: June 16, 2009
This is version 55 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)

Relevant documents

PATHWAY comments

Index of metabolic and biosynthesis pathways

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents