[1]	NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Yan J., Zhang H., Cramer W.A.; "Cloning and characterization of the petBD and petCA operon from the thermophilic cyanobacterium Mastigocladus laminosus."; Submitted (SEP-2003) to the EMBL/GenBank/DDBJ databases.
[2]	X-RAY CRYSTALLOGRAPHY (3.0 ANGSTROMS). DOI=10.1126/science.1090165; PubMed=14526088 [NCBI, ExPASy, EBI, Israel, Japan] Kurisu G., Zhang H., Smith J.L., Cramer W.A.; "Structure of the cytochrome b6f complex of oxygenic photosynthesis: tuning the cavity."; Science 302:1009-1014(2003).

Comments

FUNCTION: Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions.
CATALYTIC ACTIVITY: Plastoquinol-1 + 2 oxidized plastocyanin = plastoquinone + 2 reduced plastocyanin.
COFACTOR: Binds 1 2Fe-2S cluster per subunit.
SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer.
SUBCELLULAR LOCATION: Cellular thylakoid membrane; Single-pass membrane protein (By similarity). Note=The transmembrane helix obliquely spans the membrane in one monomer, and its extrinsic C-terminal domain is part of the other monomer.
MISCELLANEOUS: The Rieske iron-sulfur protein is a high potential 2Fe-2S protein.
SIMILARITY: Contains 1 Rieske domain.

Copyright

Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.

Cross-references

Sequence databases

EMBL

AY390356; AAR26240.1; -; Genomic_DNA.

[EMBL / GenBank / DDBJ] [CoDingSequence]

3D structure databases

PDB

1VF5; X-ray; 3.00 A; D/Q=1-179.	[ExPASy / RCSB / EBI]
2D2C; X-ray; 3.80 A; D/Q=1-179.	[ExPASy / RCSB / EBI]
2E74; X-ray; 3.00 A; D=1-179.	[ExPASy / RCSB / EBI]
2E75; X-ray; 3.55 A; D=1-179.	[ExPASy / RCSB / EBI]
2E76; X-ray; 3.41 A; D=1-179.	[ExPASy / RCSB / EBI]

Detailed list of linked structures.

PDBsum

1VF5; -.
2D2C; -.
2E74; -.
2E75; -.
2E76; -.

ModBase

P83794.

Ontologies

GO:0016021;	Cellular component: integral to membrane (inferred from electronic annotation from UniProtKB-KW).
GO:0042651;	Cellular component: thylakoid membrane (inferred from electronic annotation from UniProtKB-SubCell).
GO:0051537;	Molecular function: 2 iron, 2 sulfur cluster binding (inferred from electronic annotation from InterPro).
GO:0045158;	Molecular function: electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity (inferred from electronic annotation from HAMAP).
GO:0005506;	Molecular function: iron ion binding (inferred from electronic annotation from UniProtKB-KW).
GO:0009496;	Molecular function: plastoquinol-plastocyanin reductase activity (inferred from electronic annotation from HAMAP).
GO:0008121;	Molecular function: ubiquinol-cytochrome-c reductase activity (inferred from electronic annotation from InterPro).
GO:0022900;	Biological process: electron transport chain (inferred from electronic annotation from UniProtKB-KW).
GO:0015979;	Biological process: photosynthesis (inferred from electronic annotation from HAMAP).
GO:0006810;	Biological process: transport (inferred from electronic annotation from UniProtKB-KW).
QuickGo view.

Family and domain databases

HAMAP

MF_01335; -; 1.
PBIL [Tree]

InterPro

IPR014909; Cyt_b6-F_Fe-S_su.
IPR014349; Rieske.
IPR005805; Rieske_C.
IPR005806; Rieske_reg.
Graphical view of domain structure.

Gene3D

G3DSA:2.102.10.10; Rieske_reg; 1.

PANTHER

PTHR10134; Rieske; 1.

Pfam

PF08802; CytB6-F_Fe-S; 1.
PF00355; Rieske; 1.
Pfam graphical view of domain structure.

PRINTS

PR00162; RIESKE.

PROSITE

PS51296; RIESKE; 1.
PROSITE graphical view of domain structure (profiles).

ProtoNet

P83794.

Other

UniRef

View cluster of proteins with at least 50% / 90% / 100% identity.

Keywords

2Fe-2S; 3D-structure; Electron transport; Iron; Iron-sulfur; Membrane; Metal-binding; Oxidoreductase; Thylakoid; Transmembrane; Transport.

Features

Feature table viewer

Feature aligner

`Key`	`From To`	`Length`	`Description`	`FTId`
`CHAIN`	`1 179`	`179`	`Cytochrome b6-f complex iron-sulfur subunit.`	`PRO_0000127775`
`TRANSMEM`	`21 43`	`23`
`DOMAIN`	`61 162`	`102`	`Rieske.`
`METAL`	`108 108`		`Iron-sulfur (2Fe-2S).`
`METAL`	`110 110`		`Iron-sulfur (2Fe-2S); via pros nitrogen.`
`METAL`	`126 126`		`Iron-sulfur (2Fe-2S).`
`METAL`	`129 129`		`Iron-sulfur (2Fe-2S); via pros nitrogen.`
`DISULFID`	`113 128`
`CONFLICT`	`138 138`		`K -> R (in Ref. 2).`
`HELIX`	`23 42`	`20`
`HELIX`	`66 71`	`6`
`STRAND`	`80 82`	`3`
`STRAND`	`84 87`	`4`
`TURN`	`109 111`	`3`
`STRAND`	`119 125`	`7`
`TURN`	`127 129`	`3`
`STRAND`	`135 137`	`3`
`STRAND`	`141 143`	`3`
`STRAND`	`156 159`	`4`
`TURN`	`170 172`	`3`

Sequence information

Length: 179 AA [This is the length of the unprocessed precursor]

Molecular weight: 19401 Da [This is the MW of the unprocessed precursor]

CRC64: 3797DC66C5AFAD6C [This is a checksum on the sequence]

        10         20         30         40         50         60 
MAQFTESMDV PDMGRRQFMN LLAFGTVTGV ALGALYPLVK YFIPPSGGAV GGGTTAKDKL 

        70         80         90        100        110        120 
GNNVKVSKFL ESHNAGDRVL VQGLKGDPTY IVVESKEAIR DYGINAVCTH LGCVVPWNAA 

       130        140        150        160        170 
ENKFKCPCHG SQYDETGKVI RGPAPLSLAL CHATVQDDNI VLTPWTETDF RTGEKPWWV

P83794 in FASTA format

View entry in original UniProtKB/Swiss-Prot format
View entry in raw text format (no links)
Report form for errors/updates in this UniProtKB/Swiss-Prot entry

	BLAST submission on ExPASy/SIB or at NCBI (USA)		Sequence analysis tools: ProtParam, ProtScale, Compute pI/Mw, PeptideMass, PeptideCutter, Dotlet (Java)
	ScanProsite, MotifScan		Submit a homology modeling request to SWISS-MODEL
	NPSA Sequence analysis tools