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Entry version 112 (11 Dec 2019)
Sequence version 1 (01 Feb 1997)
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Protein

Cyanophycinase

Gene

cphB

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

Exopeptidase that catalyzes the hydrolytic cleavage of multi-L-arginyl-poly-L-aspartic acid (cyanophycin; a water-insoluble reserve polymer) into aspartate-arginine dipeptides.2 Publications

<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 describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

kcat is 16.5 sec(-1) for cyanophycin.
  1. KM=2.2 µM for cyanophycin (at 30 degrees Celsius and pH 8.0)2 Publications

    pH dependencei

    Optimum pH is 7.5.2 Publications

    Temperature dependencei

    Optimum temperature is 35 degrees Celsius.2 Publications

    Sites

    Feature keyPosition(s)DescriptionActionsGraphical viewLength
    <p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei132Charge relay system1 Publication1
    Active sitei174Charge relay system1 Publication1
    Active sitei201Charge relay system1 Publication1

    <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

    • protein homodimerization activity Source: UniProtKB
    • serine-type peptidase activity Source: UniProtKB

    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 functionHydrolase, Protease, Serine protease

    Enzyme and pathway databases

    BioCyc Collection of Pathway/Genome Databases

    More...
    BioCyci
    MetaCyc:MONOMER-17422

    BRENDA Comprehensive Enzyme Information System

    More...
    BRENDAi
    3.4.15.6 382

    Protein family/group databases

    MEROPS protease database

    More...
    MEROPSi
    S51.003

    <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:
    Cyanophycinase (EC:3.4.15.6)
    <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:cphB
    Ordered Locus Names:slr2001
    <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 lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystisunclassified Synechocystis
    <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 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>Mutagenesisi17D → A: 1.7-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi100D → A: 2.5-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi101Q → A: 5000-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi132S → A: 50000-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi158D → A: 2.4-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi172D → A: 5000-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi173Q → A: 200-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi178R → A: 100-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi180R → A: 10000-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi183R → A: 10000-fold decrease in enzyme activity. 1 Publication1
    Mutagenesisi202D → A: 12.5-fold decrease in enzyme activity. 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 <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_00002099742 – 271CyanophycinaseAdd BLAST270

    Proteomic databases

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

    More...
    PaxDbi
    P73832

    PRoteomics IDEntifications database

    More...
    PRIDEi
    P73832

    <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

    Homodimer.

    1 Publication

    GO - Molecular functioni

    Protein-protein interaction databases

    Protein interaction database and analysis system

    More...
    IntActi
    P73832, 1 interactor

    STRING: functional protein association networks

    More...
    STRINGi
    1148.1652972

    <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

    1271
    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
    P73832

    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
    P73832

    <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 peptidase S51 family.Curated

    Phylogenomic databases

    The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

    More...
    HOGENOMi
    HOG000025614

    InParanoid: Eukaryotic Ortholog Groups

    More...
    InParanoidi
    P73832

    KEGG Orthology (KO)

    More...
    KOi
    K13282

    Identification of Orthologs from Complete Genome Data

    More...
    OMAi
    FMTGGDQ

    Database for complete collections of gene phylogenies

    More...
    PhylomeDBi
    P73832

    Family and domain databases

    Gene3D Structural and Functional Annotation of Protein Families

    More...
    Gene3Di
    3.40.50.880, 1 hit

    Integrated resource of protein families, domains and functional sites

    More...
    InterProi
    View protein in InterPro
    IPR029062 Class_I_gatase-like
    IPR005320 Peptidase_S51
    IPR011811 Peptidase_S51_cyanophycinase

    Pfam protein domain database

    More...
    Pfami
    View protein in Pfam
    PF03575 Peptidase_S51, 1 hit

    PIRSF; a whole-protein classification database

    More...
    PIRSFi
    PIRSF032067 Cyanophycinase, 1 hit

    Superfamily database of structural and functional annotation

    More...
    SUPFAMi
    SSF52317 SSF52317, 1 hit

    TIGRFAMs; a protein family database

    More...
    TIGRFAMsi
    TIGR02069 cyanophycinase, 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.

    P73832-1 [UniParc]FASTAAdd to basket
    « Hide
            10         20         30         40         50
    MPLSSQPAIL IIGGAEDKVH GREILQTFWS RSGGNDAIIG IIPSASREPL
    60 70 80 90 100
    LIGERYQTIF SDMGVKELKV LDIRDRAQGD DSGYRLFVEQ CTGIFMTGGD
    110 120 130 140 150
    QLRLCGLLAD TPLMDRIRQR VHNGEISLAG TSAGAAVMGH HMIAGGSSGE
    160 170 180 190 200
    WPNRALVDMA VGLGIVPEIV VDQHFHNRNR MARLLSAIST HPELLGLGID
    210 220 230 240 250
    EDTCAMFERD GSVKVIGQGT VSFVDARDMS YTNAALVGAN APLSLHNLRL
    260 270
    NILVHGEVYH QVKQRAFPRV T
    Length:271
    Mass (Da):29,390
    Last modified:February 1, 1997 - 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:i8D65A50E82E65919
    GO

    Sequence databases

    Select the link destinations:

    EMBL nucleotide sequence database

    More...
    EMBLi

    GenBank nucleotide sequence database

    More...
    GenBanki

    DNA Data Bank of Japan; a nucleotide sequence database

    More...
    DDBJi
    Links Updated
    BA000022 Genomic DNA Translation: BAA17889.1

    Protein sequence database of the Protein Information Resource

    More...
    PIRi
    S75027

    Genome annotation databases

    Ensembl bacterial and archaeal genome annotation project

    More...
    EnsemblBacteriai
    BAA17889; BAA17889; BAA17889

    KEGG: Kyoto Encyclopedia of Genes and Genomes

    More...
    KEGGi
    syn:slr2001

    <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
    BA000022 Genomic DNA Translation: BAA17889.1
    PIRiS75027

    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
    3EN0X-ray1.50A/B/C1-271[»]
    SMRiP73832
    ModBaseiSearch...
    PDBe-KBiSearch...

    Protein-protein interaction databases

    IntActiP73832, 1 interactor
    STRINGi1148.1652972

    Protein family/group databases

    MEROPSiS51.003

    Proteomic databases

    PaxDbiP73832
    PRIDEiP73832

    Genome annotation databases

    EnsemblBacteriaiBAA17889; BAA17889; BAA17889
    KEGGisyn:slr2001

    Phylogenomic databases

    HOGENOMiHOG000025614
    InParanoidiP73832
    KOiK13282
    OMAiFMTGGDQ
    PhylomeDBiP73832

    Enzyme and pathway databases

    BioCyciMetaCyc:MONOMER-17422
    BRENDAi3.4.15.6 382

    Miscellaneous databases

    EvolutionaryTraceiP73832

    Family and domain databases

    Gene3Di3.40.50.880, 1 hit
    InterProiView protein in InterPro
    IPR029062 Class_I_gatase-like
    IPR005320 Peptidase_S51
    IPR011811 Peptidase_S51_cyanophycinase
    PfamiView protein in Pfam
    PF03575 Peptidase_S51, 1 hit
    PIRSFiPIRSF032067 Cyanophycinase, 1 hit
    SUPFAMiSSF52317 SSF52317, 1 hit
    TIGRFAMsiTIGR02069 cyanophycinase, 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 nameiCPHB_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: P73832
    <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: May 30, 2000
    Last sequence update: February 1, 1997
    Last modified: December 11, 2019
    This is version 112 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, Direct protein sequencing, Reference proteome

    Documents

    1. PDB cross-references
      Index of Protein Data Bank (PDB) cross-references
    2. SIMILARITY comments
      Index of protein domains and families
    3. Peptidase families
      Classification of peptidase families and list of entries
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