Reviewed, UniProtKB/Swiss-Prot Q8ZQU3 (DHSA_SALTY)

Names and origin

Protein names

Recommended name:
    Succinate dehydrogenase flavoprotein subunit
    EC=1.3.99.1

Gene names

Name:	sdhA
Ordered Locus Names:	STM0734

Organism

Salmonella typhimurium [Complete proteome] [HAMAP]

Taxonomic identifier

90371 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Salmonella

Protein attributes

Sequence length	588 AA.
Sequence status	Complete.
Protein existence	Inferred 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.
Pathway	Carbohydrate metabolism; tricarboxylic acid cycle; fumarate from succinate (bacterial route): step 1/1.
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.
Subcellular location	Cell inner membrane; Peripheral membrane protein; Cytoplasmic side By similarity.
Sequence similarities	Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily.

Ontologies

Keywords
Biological process	Electron transport Transport Tricarboxylic acid cycle
Cellular component	Cell inner membrane Cell membrane Membrane
Ligand	FAD Flavoprotein
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW transport Inferred from electronic annotation. Source: UniProtKB-KW tricarboxylic acid cycle Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	extrinsic to membrane Inferred from electronic annotation. Source: UniProtKB-SubCell plasma membrane Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	FAD binding Inferred from electronic annotation. Source: InterPro electron carrier activity Inferred from electronic annotation. Source: InterPro succinate dehydrogenase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 588	588	Succinate dehydrogenase flavoprotein subunit		PRO_0000158658
Regions
	Nucleotide binding	37 – 52	16	FAD By similarity
Sites
	Active site	286	1	Proton acceptor By similarity
	Binding site	242	1	Substrate By similarity
	Binding site	254	1	Substrate By similarity
	Binding site	354	1	Substrate By similarity
	Binding site	399	1	Substrate By similarity
Amino acid modifications
	Modified residue	45	1	Tele-8alpha-FAD histidine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q8ZQU3-1 [UniParc]. Last modified March 1, 2002. Version 1. Checksum: 260774C525A0AF0B	FASTA	588	64,462
	10 20 30 40 50 60 MKLPVREFDA VVIGAGGAGM RAALQISQSG QTCALLSKVF PTRSHTVSAQ GGITVALGNT 70 80 90 100 110 120 HEDNWEWHMY DTVKGSDYIG DQDAIEYMCK TGPEAILELE HMGLPFSRLD DGRIYQRPFG 130 140 150 160 170 180 GQSKNFGGEQ AARTAAAADR TGHALLHTLY QQNLKNHTTI FSEWYALDLV KNQDGAVVGC 190 200 210 220 230 240 TALCIETGEV VYFKARATVL ATGGAGRIYQ STTNAHINTG DGVGMALRAG VPVQDMEMWQ 250 260 270 280 290 300 FHPTGIAGAG VLVTEGCRGE GGYLLNKHGE RFMERYAPNA KDLAGRDVVA RSIMIEIREG 310 320 330 340 350 360 RGCDGPWGPH AKLKLDHLGK EVLESRLPGI LELSRTFAHV DPVKEPIPVI PTCHYMMGGI 370 380 390 400 410 420 PTKVTGQALT VNEQGEDVVI PGLFAVGEIA CVSVHGANRL GGNSLLDLVV FGRAAGLHLQ 430 440 450 460 470 480 ESIAEQGVLR DASESDVEGS LERLNRWNNN RNGEDPVAIR KALQECMQHN FSVFREGDAM 490 500 510 520 530 540 AKGLEQLKVI RERLKNARLD DTSSEFNTQR VECLELDNLM ETAYATAVSA NFRTESRGAH 550 560 570 580 SRFDFPERDD ANWLCHTLYQ PQTESMTRRS VNMEPKLRPA FPPKIRTY

References

[1]

"Complete genome sequence of Salmonella enterica serovar Typhimurium LT2." McClelland M., Sanderson K.E., Spieth J., Clifton S.W., Latreille P., Courtney L., Porwollik S., Ali J., Dante M., Du F., Hou S., Layman D., Leonard S., Nguyen C., Scott K., Holmes A., Grewal N., Mulvaney E. , Ryan E., Sun H., Florea L., Miller W., Stoneking T., Nhan M., Waterston R., Wilson R.K. Nature 413:852-856(2001) [PubMed: 11677609] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: LT2 / SGSC1412 / ATCC 700720.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE006468 Genomic DNA. Translation: AAL19678.1.
RefSeq	NP_459719.1.
3D structure databases
SMR	Q8ZQU3. Positions 1-588.
ModBase	Search...
Proteomic databases
PRIDE	Q8ZQU3.
Genome annotation databases
GeneID	1252254.
GenomeReviews	Gene locus STM0734 in contig AE006468_GR.
KEGG	stm:STM0734.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG293998.
OMA	ALGNSHE.
Enzyme and pathway databases
BioCyc	STYP99287:STM0734-MONOMER.
BRENDA	1.3.99.1. 2.
Family and domain databases
InterPro	IPR003953. FAD_bind2_N. IPR013027. FAD_pyr_nucl-diS_OxRdtase. IPR003952. FRD_SDH_FAD_BS. IPR015939. Fum_Rdtase/Succ_DH_flav-like_C. IPR004112. Fum_Rdtase/Succ_DH_flav_C. IPR011281. Succ_DH_flav_su_fwd. IPR014006. Succ_Dhase_frdA_Gneg. [Graphical view]
Pfam	PF00890. FAD_binding_2. 1 hit. PF02910. Succ_DH_flav_C. 1 hit. [Graphical view]
PRINTS	PR00368. FADPNR.
TIGRFAMs	TIGR01816. sdhA_forward. 1 hit. TIGR01812. sdhA_frdA_Gneg. 1 hit.
PROSITE	PS00504. FRD_SDH_FAD_BINDING. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

DHSA_SALTY

Accession

Primary (citable) accession number: Q8ZQU3

Entry history

Integrated into UniProtKB/Swiss-Prot:	June 6, 2002
Last sequence update:	March 1, 2002
Last modified:	February 9, 2010
This is version 65 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)