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Entry version 117 (16 Oct 2019)
Sequence version 1 (01 Oct 1994)
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Protein

G2/mitotic-specific cyclin-B1

Gene

CCNB1

Organism
Cricetulus griseus (Chinese hamster) (Cricetulus barabensis griseus)
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 transcript 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

Essential for the control of the cell cycle at the G2/M (mitosis) transition.

<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 functionCyclin
Biological processCell cycle, Cell division, Mitosis

<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:
G2/mitotic-specific cyclin-B1
<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:CCNB1
<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>OrganismiCricetulus griseus (Chinese hamster) (Cricetulus barabensis griseus)
<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 identifieri10029 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaCricetidaeCricetinaeCricetulus

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Cytoskeleton, Nucleus

<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_00000803491 – 429G2/mitotic-specific cyclin-B1Add BLAST429

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei73N6-acetyllysineBy similarity1
Modified residuei122Phosphoserine; by CDK1By similarity1
Modified residuei124PhosphoserineBy similarity1
Modified residuei129Phosphoserine; by PLK1By similarity1
Modified residuei143PhosphoserineBy similarity1
Modified residuei317PhosphothreonineBy similarity1

<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

Ubiquitinated by the SCF(NIPA) complex during interphase, leading to its destruction. Not ubiquitinated during G2/M phases (By similarity).By similarity
Phosphorylated by PLK1 at Ser-129 on centrosomes during prophase: phosphorylation by PLK1 does not cause nuclear import. Phosphorylation at Ser-143 was also reported to be mediated by PLK1 but Ser-129 seems to be the primary phosphorylation site (By similarity).By similarity

Keywords - PTMi

Acetylation, Phosphoprotein, Ubl conjugation

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q08301

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Accumulates steadily during G2 and is abruptly destroyed at mitosis.

<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

Interacts with the CDC2 protein kinase to form a serine/threonine kinase holoenzyme complex also known as maturation promoting factor (MPF). The cyclin subunit imparts substrate specificity to the complex. Binds HEI10.

Interacts with catalytically active RALBP1 and CDC2 during mitosis to form an endocytotic complex during interphase.

Interacts with CCNF; interaction is required for nuclear localization.

Interacts with CDK5RAP3.

Interacts with RFPL4A and UBE2A.

Interacts with INCA1.

By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
10029.XP_007623068.1

<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

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SMRi
Q08301

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>Regioni165 – 173Interaction with CDK2By similarity9
Regioni254 – 257Interaction with CDK2By similarity4

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi51 – 86Lys-richAdd BLAST36

<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 cyclin family. Cyclin AB subfamily.Curated

Phylogenomic databases

KEGG Orthology (KO)

More...
KOi
K05868

Identification of Orthologs from Complete Genome Data

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OMAi
CAEENCQ

Database of Orthologous Groups

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OrthoDBi
993640at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00043 CYCLIN, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR039361 Cyclin
IPR013763 Cyclin-like
IPR036915 Cyclin-like_sf
IPR004367 Cyclin_C-dom
IPR006671 Cyclin_N

The PANTHER Classification System

More...
PANTHERi
PTHR10177 PTHR10177, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02984 Cyclin_C, 1 hit
PF00134 Cyclin_N, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF001771 Cyclin_A_B_D_E, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00385 CYCLIN, 2 hits
SM01332 Cyclin_C, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47954 SSF47954, 2 hits

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00292 CYCLINS, 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.

Q08301-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MALRVTRNTK LNTENKAKVS MTGAKRVPVA IAAASKPGLR PRTALGDIGN
60 70 80 90 100
KVSEQAQARV PLKKELKTSV TGKVSAKIPP PKPQEKVPVS EPEVELAEPE
110 120 130 140 150
PEPEPVMEEK LSPEPILVDN PSPSPMETSG CAPAEEYLCQ AFSDVILAVS
160 170 180 190 200
DVDADDGADP NLCSEYVKDI YAYLRQLEEE QSVRPRYLLG REVTGNMRAI
210 220 230 240 250
LIDWLIQVQM KFRLLQETMY MTVSIIDRFM QDNCVPKKML QLVGVTAMFI
260 270 280 290 300
ASKYEEMYPP EIGDFAFVTN NTYTKHQIRQ MEMKILRVLN FSLGRPLPLH
310 320 330 340 350
FLRRASKIGE VDVEQHTLAK YLMELTMLDY DMVHFAPSQI AAGAFCLALK
360 370 380 390 400
ILDNGEWTPT LQHYLSYTEE SLLPVMQHLA KNVVMVNRGL TKHMTIKNKY
410 420
ATSKHAKIST LAQLNCTLVQ NLSKAVSKA
Length:429
Mass (Da):48,062
Last modified:October 1, 1994 - 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:i6E0BAE7511A678B7
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
X64588 mRNA Translation: CAA45876.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S34224

NCBI Reference Sequences

More...
RefSeqi
XP_003506318.3, XM_003506270.3

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSCGRT00015009958; ENSCGRP00015008072; ENSCGRG00015006213

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
100770842

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
cge:100770842

<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
X64588 mRNA Translation: CAA45876.1
PIRiS34224
RefSeqiXP_003506318.3, XM_003506270.3

3D structure databases

SMRiQ08301
ModBaseiSearch...

Protein-protein interaction databases

STRINGi10029.XP_007623068.1

Proteomic databases

PRIDEiQ08301

Genome annotation databases

EnsembliENSCGRT00015009958; ENSCGRP00015008072; ENSCGRG00015006213
GeneIDi100770842
KEGGicge:100770842

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
891

Phylogenomic databases

KOiK05868
OMAiCAEENCQ
OrthoDBi993640at2759

Family and domain databases

CDDicd00043 CYCLIN, 2 hits
InterProiView protein in InterPro
IPR039361 Cyclin
IPR013763 Cyclin-like
IPR036915 Cyclin-like_sf
IPR004367 Cyclin_C-dom
IPR006671 Cyclin_N
PANTHERiPTHR10177 PTHR10177, 1 hit
PfamiView protein in Pfam
PF02984 Cyclin_C, 1 hit
PF00134 Cyclin_N, 1 hit
PIRSFiPIRSF001771 Cyclin_A_B_D_E, 1 hit
SMARTiView protein in SMART
SM00385 CYCLIN, 2 hits
SM01332 Cyclin_C, 1 hit
SUPFAMiSSF47954 SSF47954, 2 hits
PROSITEiView protein in PROSITE
PS00292 CYCLINS, 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 nameiCCNB1_CRIGR
<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: Q08301
<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 1, 1994
Last sequence update: October 1, 1994
Last modified: October 16, 2019
This is version 117 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 programChordata 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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