Cytochrome b6-f complex iron-sulfur subunit - Microcystis aeruginosa (strain NIES-843)

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B0JXB7 (UCRI_MICAN) Reviewed, UniProtKB/Swiss-Prot

Last modified January 25, 2012. Version 33. History...

Clusters with 100%, 90%, 50% identity |

Documents (1) |

Third-party data

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Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·Documents Customize order

Names and origin

Protein names

Recommended name:
Cytochrome b6-f complex iron-sulfur subunit
EC=1.10.99.1

Alternative name(s):
Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein
Short name=ISP
Short name=RISP
Rieske iron-sulfur protein

Gene names

Name:	petC
Ordered Locus Names:	MAE_19220

Organism

Microcystis aeruginosa (strain NIES-843) [Complete proteome] [HAMAP]

Taxonomic identifier

449447 [NCBI]

Taxonomic lineage

Bacteria › Cyanobacteria › Chroococcales › Microcystis

Protein attributes

Sequence length	179 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (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 By similarity. HAMAP MF_01335
Catalytic activity	Plastoquinol-1 + 2 oxidized plastocyanin = plastoquinone + 2 reduced plastocyanin. HAMAP MF_01335
Cofactor	Binds 1 2Fe-2S cluster per subunit By similarity. HAMAP MF_01335
Subunit structure	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 By similarity.
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 By similarity. HAMAP MF_01335
Miscellaneous	The Rieske iron-sulfur protein is a high potential 2Fe-2S protein. HAMAP MF_01335
Sequence similarities	Contains 1 Rieske domain.

Ontologies

Keywords
Biological process	Electron transport Transport
Cellular component	Membrane Thylakoid
Domain	Transmembrane Transmembrane helix
Ligand	2Fe-2S Iron Iron-sulfur Metal-binding
Molecular function	Oxidoreductase
PTM	Disulfide bond
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW photosynthesis Inferred from electronic annotation. Source: InterPro
Cellular component	integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW thylakoid membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	2 iron, 2 sulfur cluster binding Inferred from electronic annotation. Source: UniProtKB-KW electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity Inferred from electronic annotation. Source: InterPro metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW plastoquinol-plastocyanin reductase activity Inferred from electronic annotation. Source: EC ubiquinol-cytochrome-c reductase activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

Feature key

Position(s)

Length

Description

Graphical view

Feature identifier

Molecule processing

Chain

1 – 179

179

Cytochrome b6-f complex iron-sulfur subunit HAMAP MF_01335

PRO_1000142567

Regions

Transmembrane

20 – 42

Helical; Potential

Domain

60 – 161

102

Rieske

Sites

Metal binding

107

Iron-sulfur (2Fe-2S) By similarity

Metal binding

109

Iron-sulfur (2Fe-2S); via pros nitrogen By similarity

Metal binding

125

Iron-sulfur (2Fe-2S) By similarity

Metal binding

128

Iron-sulfur (2Fe-2S); via pros nitrogen By similarity

Amino acid modifications

Disulfide bond

112 ↔ 127

By similarity

Sequences

Sequence

Length

Mass (Da)

Tools

B0JXB7 [UniParc].

Last modified March 18, 2008. Version 1.
Checksum: 73790B34B9EDBFBF
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FASTA

179

19,065

        10         20         30         40         50         60 
MSQVSGTDVP DLGRRQFMNL LTFGTITGVA AGALYPIVKY FIPPSAGGTG GGVTAKDALG 

        70         80         90        100        110        120 
NDVIVSQFLT SHNAGDRTLA QGLKGDPTYL VVQEDKTLAN YGINAVCTHL GCVVPWNASE 

       130        140        150        160        170 
EKFMCPCHGS QYNAEGKVVR GPAPLSLALA HANVTDNDKV VFSTWTETDF RTGEEPWWS

« Hide

References

[1]

"Complete genomic structure of the bloom-forming toxic cyanobacterium Microcystis aeruginosa NIES-843."
Kaneko T., Nakajima N., Okamoto S., Suzuki I., Tanabe Y., Tamaoki M., Nakamura Y., Kasai F., Watanabe A., Kawashima K., Kishida Y., Ono A., Shimizu Y., Takahashi C., Minami C., Fujishiro T., Kohara M., Katoh M.

Watanabe M.M.
DNA Res. 14:247-256(2007) [PubMed: 18192279] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: NIES-843.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AP009552 Genomic DNA. Translation: BAG01744.1.
RefSeq	YP_001656936.1. NC_010296.1.
3D structure databases
ProteinModelPortal	B0JXB7.
SMR	B0JXB7. Positions 8-178.
ModBase	Search...
Protein-protein interaction databases
STRING	B0JXB7.
Proteomic databases
PRIDE	B0JXB7.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	5862723.
GenomeReviews	Gene locus MAE_19220 in contig AP009552_GR.
KEGG	mar:MAE_19220.
PATRIC	22628857. VBIMicAer59304_1765.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG668715.
OMA	YPVANYF.
PhylomeDB	B0JXB7.
ProtClustDB	PRK13474.
Enzyme and pathway databases
BioCyc	MAER449447:MAE_19220-MONOMER.
Family and domain databases
HAMAP	MF_01335. Cytb6_f_Rieske. [Tree]
InterPro	IPR014909. Cyt_b6-f_cplx_Fe-S_su. IPR023960. Cyt_b6_f_Rieske. IPR017941. Rieske_2Fe-2S. IPR014349. Rieske_Fe-S_prot. IPR005805. Rieske_Fe-S_prot_C. [Graphical view]
Gene3D	G3DSA:2.102.10.10. Rieske_reg. 1 hit.
KO	K02636.
PANTHER	PTHR10134. Rieske. 1 hit.
Pfam	PF08802. CytB6-F_Fe-S. 1 hit. PF00355. Rieske. 1 hit. [Graphical view]
PRINTS	PR00162. RIESKE.
SUPFAM	SSF50022. Rieske_dom. 1 hit.
PROSITE	PS51296. RIESKE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

UCRI_MICAN

Accession

Primary (citable) accession number: B0JXB7

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	March 18, 2008
Last modified:	January 25, 2012
This is version 33 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·Documents

Preferred order of sections

Names and origin

Protein attributes

General annotation (Comments)

Ontologies

Sequence annotation (Features)

Molecule processing

Regions

Sites

Amino acid modifications

Sequences

References

Cross-references

Sequence databases

3D structure databases

Protein-protein interaction databases

Proteomic databases

Protocols and materials databases

Genome annotation databases

Organism-specific databases

Phylogenomic databases

Enzyme and pathway databases

Family and domain databases

Entry information

Relevant documents