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Entry version 159 (16 Oct 2019)
Sequence version 1 (01 Apr 1990)
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Protein

Photosystem II protein D1 2

Gene

psbA2

more
Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
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

Photosystem II (PSII) is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H2O, generating O2 and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The D1/D2 (PsbA/PsbA) reaction center heterodimer binds P680, the primary electron donor of PSII as well as several subsequent electron acceptors.UniRule annotation

Miscellaneous

Cyanobacteria usually contain more than 2 copies of the psbA gene.UniRule annotation
2 of the reaction center chlorophylls (ChlD1 and ChlD2) are entirely coordinated by water.UniRule annotation
Herbicides such as atrazine, BNT, diuron or ioxynil bind in the Q(B) binding site and block subsequent electron transfer.UniRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<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: The D1/D2 heterodimer binds P680, chlorophylls that are the primary electron donor of PSII, and subsequent electron acceptors. It shares a non-heme iron and each subunit binds pheophytin, quinone, additional chlorophylls, carotenoids and lipids. D1 provides most of the ligands for the Mn4-Ca-O5 cluster of the oxygen-evolving complex (OEC). There is also a Cl(-1) ion associated with D1 and D2, which is required for oxygen evolution. The PSII complex binds additional chlorophylls, carotenoids and specific lipids.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi118Magnesium (chlorophyll-a ChlzD1 axial ligand); via tele nitrogenUniRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei126Pheophytin D1UniRule annotation1
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections (‘Function’, ‘PTM / Processing’, ‘Pathology and Biotech’) according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei161Tyrosine radical intermediateUniRule annotation1
Metal bindingi170Calcium-manganese-oxide [Ca-4Mn-5O]; calciumUniRule annotation1
Metal bindingi170Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 4UniRule annotation1
Metal bindingi189Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 1UniRule annotation1
Sitei190Stabilizes free radical intermediateUniRule annotation1
Metal bindingi198Magnesium (chlorophyll-a PD1 axial ligand); via tele nitrogenUniRule annotation1
Metal bindingi215Iron; shared with heterodimeric partner; via tele nitrogenUniRule annotation1
Binding sitei215Quinone (B)UniRule annotation1
Metal bindingi272Iron; shared with heterodimeric partner; via tele nitrogenUniRule annotation1
Metal bindingi332Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 1; via tele nitrogenUniRule annotation1
Metal bindingi333Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 3UniRule annotation1
Metal bindingi333Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 4UniRule annotation1
Metal bindingi342Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 1UniRule annotation1
Metal bindingi342Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 2UniRule annotation1
Metal bindingi344Calcium-manganese-oxide [Ca-4Mn-5O]; calcium; via carboxylateUniRule annotation1
Metal bindingi344Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 2; via carboxylateUniRule annotation1

<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

Molecular functionOxidoreductase
Biological processElectron transport, Herbicide resistance, Photosynthesis, Transport
LigandCalcium, Chlorophyll, Chromophore, Iron, Magnesium, Manganese, Metal-binding

Protein family/group databases

Transport Classification Database

More...
TCDBi
3.E.2.2.2 the photosynthetic reaction center (prc) family

<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 protein D1 2UniRule annotation (EC:1.10.3.9UniRule annotation)
Short name:
PSII D1 protein 2UniRule annotation
Alternative name(s):
Photosystem II Q(B) protein 2UniRule 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:psbA2UniRule annotationCurated
Synonyms:psbA-2
Ordered Locus Names:slr1311
AND
Name:psbA3UniRule annotationCurated
Synonyms:psbA-3
Ordered Locus Names:sll1867
<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>OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
<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 identifieri1111708 [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 lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystis
<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
  • UP000001425 <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 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>Transmembranei29 – 46HelicalUniRule annotationAdd BLAST18
Transmembranei118 – 133HelicalUniRule annotationAdd BLAST16
Transmembranei142 – 156HelicalUniRule annotationAdd BLAST15
Transmembranei197 – 218HelicalUniRule annotationAdd BLAST22
Transmembranei274 – 288HelicalUniRule annotationAdd BLAST15

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi221 – 222SS → LA: Strong herbicide resistance. 1 Publication2
Mutagenesisi227 – 228TT → AA: Herbicide resistance. 1 Publication2
Mutagenesisi237Y → F: Weak herbicide resistance. 1 Publication1
Mutagenesisi238K → V: Weak herbicide resistance. 1 Publication1
Mutagenesisi255F → W: Herbicide resistance. 1 Publication1
Mutagenesisi257R → V: Herbicide resistance. 1 Publication1
Mutagenesisi264S → A: Strong herbicide resistance. 1 Publication1
Mutagenesisi271L → V, M, A or S: Herbicide resistance. 1 Publication1

<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 ‘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_00000904931 – 344Photosystem II protein D1 2UniRule annotationAdd BLAST344
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section describes a propeptide, which is a part of a protein that is cleaved during maturation or activation. Once cleaved, a propeptide generally has no independent biological function.<p><a href='/help/propep' target='_top'>More...</a></p>PropeptideiPRO_0000316429345 – 360UniRule annotation1 PublicationAdd BLAST16

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

C-terminally processed by CtpA; processing is essential to allow assembly of the oxygen-evolving complex and photosynthetic growth.UniRule annotation1 Publication
Tyr-161 forms a radical intermediate that is referred to as redox-active TyrZ, YZ or Y-Z.UniRule annotation
C-terminally processed by CtpA; processing is essential to allow assembly of the oxygen-evolving complex and thus photosynthetic growth.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei344 – 345Cleavage; by CtpAUniRule annotation1 Publication2

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P16033

PRoteomics IDEntifications database

More...
PRIDEi
P16033

<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 annotation1 Publication

Protein-protein interaction databases

Protein interaction database and analysis system

More...
IntActi
P16033, 5 interactors

STRING: functional protein association networks

More...
STRINGi
1148.1653315

<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

3D structure databases

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

More...
SMRi
P16033

Database of comparative protein structure models

More...
ModBasei
Search...

<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

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni264 – 265Quinone (B)UniRule annotation2

<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 reaction center PufL/M/PsbA/D family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000246913

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P16033

KEGG Orthology (KO)

More...
KOi
K02703

Identification of Orthologs from Complete Genome Data

More...
OMAi
FLIGCAC

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P16033

Family and domain databases

Conserved Domains Database

More...
CDDi
cd09289 Photosystem-II_D1, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

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Gene3Di
1.20.85.10, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_01379 PSII_PsbA_D1, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR036854 Photo_II_D1/D2_sf
IPR000484 Photo_RC_L/M
IPR005867 PSII_D1

The PANTHER Classification System

More...
PANTHERi
PTHR33149 PTHR33149, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00124 Photo_RC, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00256 REACTNCENTRE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF81483 SSF81483, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01151 psbA, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00244 REACTION_CENTER, 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.

P16033-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTTTLQQRES ASLWEQFCQW VTSTNNRIYV GWFGTLMIPT LLTATTCFII
60 70 80 90 100
AFIAAPPVDI DGIREPVAGS LLYGNNIISG AVVPSSNAIG LHFYPIWEAA
110 120 130 140 150
SLDEWLYNGG PYQLVVFHFL IGIFCYMGRQ WELSYRLGMR PWICVAYSAP
160 170 180 190 200
VSAATAVFLI YPIGQGSFSD GMPLGISGTF NFMIVFQAEH NILMHPFHML
210 220 230 240 250
GVAGVFGGSL FSAMHGSLVT SSLVRETTEV ESQNYGYKFG QEEETYNIVA
260 270 280 290 300
AHGYFGRLIF QYASFNNSRS LHFFLGAWPV IGIWFTAMGV STMAFNLNGF
310 320 330 340 350
NFNQSILDSQ GRVIGTWADV LNRANIGFEV MHERNAHNFP LDLASGEQAP
360
VALTAPAVNG
Length:360
Mass (Da):39,721
Last modified:April 1, 1990 - 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:i2FE4088498A416C2
GO

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
X56000 Genomic DNA Translation: CAA39472.1
X13547 Genomic DNA Translation: CAA31899.1
BA000022 Genomic DNA Translation: BAA18230.1
BA000022 Genomic DNA Translation: BAA16586.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S13112 F2YB16

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
BAA16586; BAA16586; BAA16586
BAA18230; BAA18230; BAA18230

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
syn:sll1867
syn:slr1311

<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
X56000 Genomic DNA Translation: CAA39472.1
X13547 Genomic DNA Translation: CAA31899.1
BA000022 Genomic DNA Translation: BAA18230.1
BA000022 Genomic DNA Translation: BAA16586.1
PIRiS13112 F2YB16

3D structure databases

SMRiP16033
ModBaseiSearch...

Protein-protein interaction databases

IntActiP16033, 5 interactors
STRINGi1148.1653315

Protein family/group databases

TCDBi3.E.2.2.2 the photosynthetic reaction center (prc) family

Proteomic databases

PaxDbiP16033
PRIDEiP16033

Genome annotation databases

EnsemblBacteriaiBAA16586; BAA16586; BAA16586
BAA18230; BAA18230; BAA18230
KEGGisyn:sll1867
syn:slr1311

Phylogenomic databases

HOGENOMiHOG000246913
InParanoidiP16033
KOiK02703
OMAiFLIGCAC
PhylomeDBiP16033

Family and domain databases

CDDicd09289 Photosystem-II_D1, 1 hit
Gene3Di1.20.85.10, 1 hit
HAMAPiMF_01379 PSII_PsbA_D1, 1 hit
InterProiView protein in InterPro
IPR036854 Photo_II_D1/D2_sf
IPR000484 Photo_RC_L/M
IPR005867 PSII_D1
PANTHERiPTHR33149 PTHR33149, 1 hit
PfamiView protein in Pfam
PF00124 Photo_RC, 1 hit
PRINTSiPR00256 REACTNCENTRE
SUPFAMiSSF81483 SSF81483, 1 hit
TIGRFAMsiTIGR01151 psbA, 1 hit
PROSITEiView protein in PROSITE
PS00244 REACTION_CENTER, 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 nameiPSBA2_SYNY3
<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: P16033
<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: April 1, 1990
Last sequence update: April 1, 1990
Last modified: October 16, 2019
This is version 159 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

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Synechocystis PCC 6803
    Synechocystis (strain PCC 6803): entries and gene names
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