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Entry version 111 (18 Sep 2019)
Sequence version 1 (01 Mar 2003)
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Protein

Photosystem II CP47 reaction center protein

Gene

psbB

Organism
Thermosynechococcus elongatus (strain BP-1)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H2O, generating O2 and a proton gradient subsequently used for ATP formation.UniRule annotation3 Publications

<p>This subsection of the ‘Function’ section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Note: Binds multiple chlorophylls. PSII binds additional chlorophylls, carotenoids and specific lipids.UniRule annotation10 Publications

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processPhotosynthesis
LigandChlorophyll, Chromophore

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
TELO197221:G1G3I-1556-MONOMER

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Photosystem II CP47 reaction center proteinUniRule annotation
Alternative name(s):
PSII 47 kDa proteinUniRule annotation
Protein CP-47UniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:psbBUniRule annotation
Ordered Locus Names:tlr1530
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiThermosynechococcus elongatus (strain BP-1)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri197221 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesSynechococcaceaeThermosynechococcus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000000440 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini2 – 22Cytoplasmic1 PublicationAdd BLAST21
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei23 – 37Helical1 PublicationAdd BLAST15
Topological domaini38 – 95Lumenal1 PublicationAdd BLAST58
Transmembranei96 – 109Helical1 PublicationAdd BLAST14
Topological domaini110 – 141Cytoplasmic1 PublicationAdd BLAST32
Transmembranei142 – 156Helical1 PublicationAdd BLAST15
Topological domaini157 – 200Lumenal1 PublicationAdd BLAST44
Transmembranei201 – 213Helical1 PublicationAdd BLAST13
Topological domaini214 – 238Cytoplasmic1 PublicationAdd BLAST25
Transmembranei239 – 252Helical1 PublicationAdd BLAST14
Topological domaini253 – 453Lumenal1 PublicationAdd BLAST201
Transmembranei454 – 468Helical1 PublicationAdd BLAST15
Topological domaini469 – 510Cytoplasmic1 PublicationAdd BLAST42

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved1 Publication
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004308062 – 510Photosystem II CP47 reaction center proteinAdd BLAST509

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Cyanobacterial PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.

UniRule annotation10 Publications

Protein-protein interaction databases

Database of interacting proteins

More...
DIPi
DIP-48488N

Protein interaction database and analysis system

More...
IntActi
Q8DIQ1, 1 interactor

STRING: functional protein association networks

More...
STRINGi
197221.22295255

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1510
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q8DIQ1

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
Q8DIQ1

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the PsbB/PsbC family. PsbB subfamily.UniRule annotationCurated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105YVZ Bacteria
ENOG410XQ0W LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000111313

KEGG Orthology (KO)

More...
KOi
K02704

Identification of Orthologs from Complete Genome Data

More...
OMAi
IWHWTYW

Database of Orthologous Groups

More...
OrthoDBi
174499at2

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_01495 PSII_PsbB_CP47, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000932 PS_antenna-like
IPR036001 PS_II_antenna-like_sf
IPR017486 PSII_PsbB

The PANTHER Classification System

More...
PANTHERi
PTHR33180 PTHR33180, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00421 PSII, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF161077 SSF161077, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR03039 PS_II_CP47, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q8DIQ1-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGLPWYRVHT VLINDPGRLI AAHLMHTALV AGWAGSMALY ELATFDPSDP
60 70 80 90 100
VLNPMWRQGM FVLPFMARLG VTGSWSGWSI TGETGIDPGF WSFEGVALAH
110 120 130 140 150
IVLSGLLFLA ACWHWVYWDL ELFRDPRTGE PALDLPKMFG IHLFLAGLLC
160 170 180 190 200
FGFGAFHLTG LFGPGMWVSD PYGLTGSVQP VAPEWGPDGF NPYNPGGVVA
210 220 230 240 250
HHIAAGIVGI IAGLFHILVR PPQRLYKALR MGNIETVLSS SIAAVFFAAF
260 270 280 290 300
VVAGTMWYGS ATTPIELFGP TRYQWDSSYF QQEINRRVQA SLASGATLEE
310 320 330 340 350
AWSAIPEKLA FYDYIGNNPA KGGLFRTGPM NKGDGIAQAW KGHAVFRNKE
360 370 380 390 400
GEELFVRRMP AFFESFPVIL TDKNGVVKAD IPFRRAESKY SFEQQGVTVS
410 420 430 440 450
FYGGELNGQT FTDPPTVKSY ARKAIFGEIF EFDTETLNSD GIFRTSPRGW
460 470 480 490 500
FTFAHAVFAL LFFFGHIWHG ARTLFRDVFS GIDPELSPEQ VEWGFYQKVG
510
DVTTRRKEAV
Length:510
Mass (Da):56,604
Last modified:March 1, 2003 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i0AEEE3DB7124FB81
GO

<p>This subsection of the ‘Sequence’ section reports information derived from mass spectrometry experiments done on the entire protein or on biologically active derived peptide(s).<p><a href='/help/mass_spectrometry' target='_top'>More...</a></p>Mass spectrometryi

Molecular mass is 56485±108 Da from positions 2 - 510. Determined by MALDI. 1 Publication

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AB052566 Genomic DNA Translation: BAB19261.1
BA000039 Genomic DNA Translation: BAC09082.1

NCBI Reference Sequences

More...
RefSeqi
NP_682320.1, NC_004113.1
WP_011057370.1, NC_004113.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
BAC09082; BAC09082; BAC09082

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
1011081

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
tel:tlr1530

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|197221.4.peg.1607

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB052566 Genomic DNA Translation: BAB19261.1
BA000039 Genomic DNA Translation: BAC09082.1
RefSeqiNP_682320.1, NC_004113.1
WP_011057370.1, NC_004113.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1S5LX-ray3.50B/b1-510[»]
1W5CX-ray3.20B/H1-510[»]
2AXTX-ray3.00B/b1-510[»]
3KZIX-ray3.60B1-510[»]
4FBYX-ray6.56B/N1-510[»]
4IXQX-ray5.70B/b1-510[»]
4IXRX-ray5.90B/b1-510[»]
4PBUX-ray5.00B/b2-505[»]
4PJ0X-ray2.44B/b1-510[»]
4RVYX-ray5.50B/b2-505[»]
4TNHX-ray4.90B/b1-510[»]
4TNIX-ray4.60B/b1-510[»]
4TNJX-ray4.50B/b1-510[»]
4TNKX-ray5.20B/b1-510[»]
4V62X-ray2.90AB/BB1-510[»]
4V82X-ray3.20AB/BB1-510[»]
5E79X-ray3.50B/b2-505[»]
5E7CX-ray4.50B/b2-505[»]
5H2FX-ray2.20B/b2-506[»]
5KAFX-ray3.00B/b1-510[»]
5KAIX-ray2.80B/b1-510[»]
5MX2X-ray2.20B/b1-510[»]
5TISX-ray2.25B/b1-510[»]
5ZZNX-ray2.10B/b2-506[»]
6DHEX-ray2.05B/b2-506[»]
6DHFX-ray2.08B/b2-506[»]
6DHGX-ray2.50B/b2-506[»]
6DHHX-ray2.20B/b2-506[»]
6DHOX-ray2.07B/b2-506[»]
6DHPX-ray2.04B/b2-506[»]
SMRiQ8DIQ1
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

DIPiDIP-48488N
IntActiQ8DIQ1, 1 interactor
STRINGi197221.22295255

Genome annotation databases

EnsemblBacteriaiBAC09082; BAC09082; BAC09082
GeneIDi1011081
KEGGitel:tlr1530
PATRICifig|197221.4.peg.1607

Phylogenomic databases

eggNOGiENOG4105YVZ Bacteria
ENOG410XQ0W LUCA
HOGENOMiHOG000111313
KOiK02704
OMAiIWHWTYW
OrthoDBi174499at2

Enzyme and pathway databases

BioCyciTELO197221:G1G3I-1556-MONOMER

Miscellaneous databases

EvolutionaryTraceiQ8DIQ1

Family and domain databases

HAMAPiMF_01495 PSII_PsbB_CP47, 1 hit
InterProiView protein in InterPro
IPR000932 PS_antenna-like
IPR036001 PS_II_antenna-like_sf
IPR017486 PSII_PsbB
PANTHERiPTHR33180 PTHR33180, 1 hit
PfamiView protein in Pfam
PF00421 PSII, 1 hit
SUPFAMiSSF161077 SSF161077, 1 hit
TIGRFAMsiTIGR03039 PS_II_CP47, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiPSBB_THEEB
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q8DIQ1
Secondary accession number(s): Q9F1M3
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 29, 2014
Last sequence update: March 1, 2003
Last modified: September 18, 2019
This is version 111 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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