Cytochrome b6-f complex iron-sulfur subunit 1 - Synechocystis sp. (strain PCC 6803)

Contribute

Send feedback

Read comments (0) or add your own

Reviewed, UniProtKB/Swiss-Prot P74714 (UCRIA_SYNY3)

Last modified June 16, 2009. Version 62. 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

Hide | Top

Names and origin

Protein names

Recommended name:
    Cytochrome b6-f complex iron-sulfur subunit 1
    EC=1.10.99.1
Alternative name(s):
    Rieske iron-sulfur protein 1
    Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein 1
      Short name=ISP 1
      Short name=RISP 1

Gene names

Name:	petC1
Ordered Locus Names:	slr1185

Organism

Synechocystis sp. (strain PCC 6803) [Complete proteome] [HAMAP]

Taxonomic identifier

1148 [NCBI]

Taxonomic lineage

Bacteria › Cyanobacteria › Chroococcales › Synechocystis

Hide | Top

Protein attributes

Sequence length	178 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

Hide | Top

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

Hide | Top

Ontologies

Keywords
Biological process	Electron transport Transport
Cellular component	Membrane Thylakoid
Domain	Transmembrane
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: HAMAP transport Inferred from electronic annotation. Source: UniProtKB-KW
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: HAMAP iron ion binding Inferred from electronic annotation. Source: UniProtKB-KW plastoquinol-plastocyanin reductase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Hide | Top

Sequence annotation (Features)

Feature key

Position(s)

Length

Description

Graphical view

Feature identifier

Molecule processing

Chain

1 – 178

178

Cytochrome b6-f complex iron-sulfur subunit 1 HAMAP MF_01335

PRO_0000127784

Regions

Transmembrane

17 – 36

Potential

Domain

61 – 161

101

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

Hide | Top

Sequences

Sequence

Length

Mass (Da)

Tools

P74714-1 [UniParc].

Last modified February 1, 1997. Version 1.
Checksum: 6AFF9F4195A61956
Show »

FASTA

178

18,685

        10         20         30         40         50         60 
MDNTQAIAPP SYSRRQLLNF LAGTTVAVTA SAGAYAMGKF FVPPAEKGGA GGGIIAKDVL 

        70         80         90        100        110        120 
GNPIPASQIL AEAPGTRALV AGLAGDPTYL IVKEDGSLDS IGIVDSCTHL GCTFPWNGND 

       130        140        150        160        170 
QEFQCPCHGS RYHPDGSVAR GPAPLPLKIV QVAVVDDQIF ISPWTDLDPR TGEKPWWV

« Hide

Hide | Top

References

[1]

"Sequence analysis of the genome of the unicellular cyanobacterium Synechocystis sp. strain PCC6803. II. Sequence determination of the entire genome and assignment of potential protein-coding regions."
Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y., Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T., Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.

Tabata S.
DNA Res. 3:109-136(1996) [PubMed: 8905231] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Hide | Top

Cross-references

Sequence databases
	BA000022 Genomic DNA. Translation: BAA18833.1.
PIR	S76921.
RefSeq	NP_443021.1.
3D structure databases
HSSP	HSSP built from PDB template 1RFS based on UniProtKB P08980.
ModBase	Search...
Protein-protein interaction databases
IntAct	P74714. 1 interaction.
Genome annotation databases
GeneID	951899.
GenomeReviews	Gene locus slr1185 in contig BA000022_GR.
KEGG	syn:slr1185.
NMPDR	fig\|1148.1.peg.3122.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	P74714.
OMA	P74714. YLIVKED.
Enzyme and pathway databases
BioCyc	SSP1148:SLR1185-MON.
Family and domain databases
HAMAP	MF_01335. [Tree]
InterPro	IPR014909. Cyt_b6-f_cplx_Fe-S_su. IPR017941. Rieske_2Fe-2S. IPR014349. Rieske_Fe-S_prot. IPR017909. Twin_arg_translocation_Tat. [Graphical view]
Gene3D	G3DSA:2.102.10.10. Rieske_reg. 1 hit.
PANTHER	PTHR10134. Rieske. 1 hit.
Pfam	PF08802. CytB6-F_Fe-S. 1 hit. PF00355. Rieske. 1 hit. [Graphical view]
PROSITE	PS51296. RIESKE. 1 hit. PS51318. TAT. 1 hit. [Graphical view]
ProtoNet	Search...

Hide | Top

Entry information

Entry name

UCRIA_SYNY3

Accession

Primary (citable) accession number: P74714

Entry history

Integrated into UniProtKB/Swiss-Prot:	June 21, 2005
Last sequence update:	February 1, 1997
Last modified:	June 16, 2009
This is version 62 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)

Hide | Top

Relevant documents

SIMILARITY comments

Index of protein domains and families

Synechocystis PCC 6803

Synechocystis (strain PCC 6803): entries and gene names

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

Genome annotation databases

Organism-specific databases

Phylogenomic databases

Enzyme and pathway databases

Family and domain databases

Entry information

Relevant documents