Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
The new UniProt website is here! Take me to UniProt BETA

UniProtKB - Q9NYY3 (PLK2_HUMAN)

Entry version 189 (25 May 2022)
Sequence version 3 (02 Aug 2002)
Previous versions | rss
Add a publicationFeedback
Protein

Serine/threonine-protein kinase PLK2

Gene

PLK2

Organism
Homo sapiens (Human)
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

Tumor suppressor serine/threonine-protein kinase involved in synaptic plasticity, centriole duplication and G1/S phase transition. Polo-like kinases act by binding and phosphorylating proteins are that already phosphorylated on a specific motif recognized by the POLO box domains. Phosphorylates CENPJ, NPM1, RAPGEF2, RASGRF1, SNCA, SIPA1L1 and SYNGAP1. Plays a key role in synaptic plasticity and memory by regulating the Ras and Rap protein signaling: required for overactivity-dependent spine remodeling by phosphorylating the Ras activator RASGRF1 and the Rap inhibitor SIPA1L1 leading to their degradation by the proteasome. Conversely, phosphorylates the Rap activator RAPGEF2 and the Ras inhibitor SYNGAP1, promoting their activity. Also regulates synaptic plasticity independently of kinase activity, via its interaction with NSF that disrupts the interaction between NSF and the GRIA2 subunit of AMPARs, leading to a rapid rundown of AMPAR-mediated current that occludes long term depression. Required for procentriole formation and centriole duplication by phosphorylating CENPJ and NPM1, respectively. Its induction by p53/TP53 suggests that it may participate in the mitotic checkpoint following stress.

4 Publications

Miscellaneous

There are indications that PLK2 might act as a tumor suppressor: PLK2 is significantly down-regulated in a wide range of acute myeloid leukemias (AMLs) and B-cell lymphomas due to aberrant cytosine methylation in the CpG island located at the 5' of the PLK2 gene (PubMed:16160013, PubMed:21340720). Moreover, miR-126, a microRNA that negatively regulates PLK2 is up-regulated in AMLs, suggesting that PLK2 down-regulation by miR-126 could also contribute to leukemogenesis (PubMed:18832181).3 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Activated by phosphorylation of Thr-239. Once activated, activity is stimulated by binding target proteins (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 sitei111ATPPROSITE-ProRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 sitei205Proton acceptorPROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi88 – 96ATPPROSITE-ProRule annotation9

<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

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<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 functionKinase, Serine/threonine-protein kinase, Transferase
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		2.7.11.21, 2681

Pathway Commons web resource for biological pathway data

More...PathwayCommonsi		Q9NYY3

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-6804115, TP53 regulates transcription of additional cell cycle genes whose exact role in the p53 pathway remain uncertain
R-HSA-9662834, CD163 mediating an anti-inflammatory response

SignaLink: a signaling pathway resource with multi-layered regulatory networks

More...SignaLinki		Q9NYY3

SIGNOR Signaling Network Open Resource

More...SIGNORi		Q9NYY3

<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%5Fand%5Ftaxonomy%5Fsection">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:
Serine/threonine-protein kinase PLK2 (EC:2.7.11.21)
Alternative name(s):
Polo-like kinase 2
Short name:
PLK-2
Short name:
hPlk2
Serine/threonine-protein kinase SNK
Short name:
hSNK
Serum-inducible kinase
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:PLK2
Synonyms:SNK
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiHomo sapiens (Human)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000005640 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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 5

Organism-specific databases

Human Gene Nomenclature Database

More...HGNCi		HGNC:19699, PLK2

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		607023, gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_Q9NYY3

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000145632

<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

Keywords - Cellular componenti

Cell projection, Cytoplasm, Cytoskeleton

<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%5Fand%5Fbiotech%5Fsection">'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>Mutagenesisi210N → A: Loss of kinase activity. 1 Publication1
Mutagenesisi503W → F: Impairs localization to the centrosome and centriole duplication; when associated with A-629 and M-631. 1 Publication1
Mutagenesisi629H → A: Impairs localization to the centrosome and centriole duplication; when associated with F-503 and M-631. 1 Publication1
Mutagenesisi631K → M: Impairs localization to the centrosome and centriole duplication; when associated with F-503 and A-631. 1 Publication1

Keywords - Diseasei

Tumor suppressor

Organism-specific databases

DisGeNET

More...DisGeNETi		10769

Open Targets

More...OpenTargetsi		ENSG00000145632

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA134940798

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		Q9NYY3, Tchem

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...ChEMBLi		CHEMBL5938

Drug and drug target database

More...DrugBanki		DB12010, Fostamatinib

DrugCentral

More...DrugCentrali		Q9NYY3

IUPHAR/BPS Guide to PHARMACOLOGY

More...GuidetoPHARMACOLOGYi		2169

Genetic variation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		PLK2

Domain mapping of disease mutations (DMDM)

More...DMDMi		22096374

<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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000865611 – 685Serine/threonine-protein kinase PLK2Add BLAST685

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 residuei239PhosphothreonineBy similarity1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">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

Catalytic activity is enhanced by phosphorylation of Thr-239.By similarity

Keywords - PTMi

Phosphoprotein

Proteomic databases

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		Q9NYY3

MaxQB - The MaxQuant DataBase

More...MaxQBi		Q9NYY3

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

More...PaxDbi		Q9NYY3

PeptideAtlas

More...PeptideAtlasi		Q9NYY3

PRoteomics IDEntifications database

More...PRIDEi		Q9NYY3

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		83299

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		Q9NYY3

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...PhosphoSitePlusi		Q9NYY3

<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 a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Expressed at higher level in the fetal lung, kidney, spleen and heart.1 Publication

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Directly regulated by p53/TP53. Negatively regulated by miR-126.2 Publications

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000145632, Expressed in frontal cortex and 239 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...ExpressionAtlasi		Q9NYY3, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		Q9NYY3, HS

Organism-specific databases

Human Protein Atlas

More...HPAi		ENSG00000145632, Low tissue specificity

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Interacts with NSF; causing NSF dissociation from GRIA2.

Interacts with CIB1 (By similarity).

By similarity

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Hide details

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		115988, 54 interactors

Database of interacting proteins

More...DIPi		DIP-48943N

Protein interaction database and analysis system

More...IntActi		Q9NYY3, 48 interactors

Molecular INTeraction database

More...MINTi		Q9NYY3

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000274289

Chemistry databases

BindingDB database of measured binding affinities

More...BindingDBi		Q9NYY3

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		Q9NYY3, protein

<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

1685
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

AlphaFold Protein Structure Database

More...AlphaFoldDBi		Q9NYY3

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

More...SMRi		Q9NYY3

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini82 – 334Protein kinasePROSITE-ProRule annotationAdd BLAST253
Domaini510 – 573POLO box 1PROSITE-ProRule annotationAdd BLAST64
Domaini606 – 677POLO box 2PROSITE-ProRule annotationAdd BLAST72

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>Regioni21 – 70DisorderedSequence analysisAdd BLAST50
Regioni406 – 433DisorderedSequence analysisAdd BLAST28

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 type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi406 – 420Basic and acidic residuesSequence analysisAdd BLAST15

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The POLO box domains act as phosphopeptide-binding module that recognize and bind serine-[phosphothreonine/phosphoserine]-(proline/X) motifs. PLK2 recognizes and binds docking proteins that are already phosphorylated on these motifs, and then phosphorylates them (By similarity).By similarity

<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 protein kinase superfamily. Ser/Thr protein kinase family. CDC5/Polo subfamily.PROSITE-ProRule annotation

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG0575, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT00940000158739

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q9NYY3

Identification of Orthologs from Complete Genome Data

More...OMAi		MPEADSN

Database of Orthologous Groups

More...OrthoDBi		507604at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q9NYY3

TreeFam database of animal gene trees

More...TreeFami		TF101089

Family and domain databases

Conserved Domains Database

More...CDDi		cd13118, POLO_box_1, 1 hit
cd13117, POLO_box_2, 1 hit
cd14188, STKc_PLK2, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.30.1120.30, 2 hits

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR011009, Kinase-like_dom_sf
IPR042825, PLK2_STKc
IPR033701, POLO_box_1
IPR033695, POLO_box_2
IPR000959, POLO_box_dom
IPR036947, POLO_box_dom_sf
IPR000719, Prot_kinase_dom
IPR017441, Protein_kinase_ATP_BS
IPR008271, Ser/Thr_kinase_AS

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00069, Pkinase, 1 hit
PF00659, POLO_box, 2 hits

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00220, S_TKc, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF56112, SSF56112, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS50078, POLO_BOX, 2 hits
PS00107, PROTEIN_KINASE_ATP, 1 hit
PS50011, PROTEIN_KINASE_DOM, 1 hit
PS00108, PROTEIN_KINASE_ST, 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%5Flength">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>Sequence (1+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

Q9NYY3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MELLRTITYQ PAASTKMCEQ ALGKGCGADS KKKRPPQPPE ESQPPQSQAQ 
        60         70         80         90        100
VPPAAPHHHH HHSHSGPEIS RIIVDPTTGK RYCRGKVLGK GGFAKCYEMT 
       110        120        130        140        150
DLTNNKVYAA KIIPHSRVAK PHQREKIDKE IELHRILHHK HVVQFYHYFE 
       160        170        180        190        200
DKENIYILLE YCSRRSMAHI LKARKVLTEP EVRYYLRQIV SGLKYLHEQE 
       210        220        230        240        250
ILHRDLKLGN FFINEAMELK VGDFGLAARL EPLEHRRRTI CGTPNYLSPE 
       260        270        280        290        300
VLNKQGHGCE SDIWALGCVM YTMLLGRPPF ETTNLKETYR CIREARYTMP 
       310        320        330        340        350
SSLLAPAKHL IASMLSKNPE DRPSLDDIIR HDFFLQGFTP DRLSSSCCHT 
       360        370        380        390        400
VPDFHLSSPA KNFFKKAAAA LFGGKKDKAR YIDTHNRVSK EDEDIYKLRH 
       410        420        430        440        450
DLKKTSITQQ PSKHRTDEEL QPPTTTVARS GTPAVENKQQ IGDAIRMIVR 
       460        470        480        490        500
GTLGSCSSSS ECLEDSTMGS VADTVARVLR GCLENMPEAD CIPKEQLSTS 
       510        520        530        540        550
FQWVTKWVDY SNKYGFGYQL SDHTVGVLFN NGAHMSLLPD KKTVHYYAEL 
       560        570        580        590        600
GQCSVFPATD APEQFISQVT VLKYFSHYME ENLMDGGDLP SVTDIRRPRL 
       610        620        630        640        650
YLLQWLKSDK ALMMLFNDGT FQVNFYHDHT KIIICSQNEE YLLTYINEDR 
       660        670        680 
ISTTFRLTTL LMSGCSSELK NRMEYALNML LQRCN
Length:685
Mass (Da):78,237
Last modified:August 2, 2002 - v3
<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:i6429F6EFD830B333
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A0A087WUH9A0A087WUH9_HUMAN
Serine/threonine-protein kinase PLK
PLK2
671Annotation score:

Annotation score:3 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 Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti28A → G in AAC14573 (PubMed:11696980).Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural variantiVAR_04102314S → T in an ovarian Endometrioid carcinoma sample; somatic mutation. 1 PublicationCorresponds to variant dbSNP:rs1404394734Ensembl.1
Natural variantiVAR_04102492G → S in a lung adenocarcinoma sample; somatic mutation. 1 Publication1
Natural variantiVAR_041025436E → K1 PublicationCorresponds to variant dbSNP:rs55768901Ensembl.1
Natural variantiVAR_041026487P → L1 PublicationCorresponds to variant dbSNP:rs55645589Ensembl.1

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
AF059617 mRNA Translation: AAC14573.1
AF223574 mRNA Translation: AAF62897.1
U85755 mRNA Translation: AAD00575.1
AC008814 Genomic DNA No translation available.
BC013879 mRNA Translation: AAH13879.1

The Consensus CDS (CCDS) project

More...CCDSi		CCDS3974.1

NCBI Reference Sequences

More...RefSeqi		NP_001239155.1, NM_001252226.1
NP_006613.2, NM_006622.3

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000274289.8; ENSP00000274289.3; ENSG00000145632.15

Database of genes from NCBI RefSeq genomes

More...GeneIDi		10769

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:10769

Matched Annotation from NCBI and EMBL-EBI (MANE) - Phase one

More...MANE-Selecti		ENST00000274289.8; ENSP00000274289.3; NM_006622.4; NP_006613.2

UCSC genome browser

More...UCSCi		uc003jrn.4, human

<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
AF059617 mRNA Translation: AAC14573.1
AF223574 mRNA Translation: AAF62897.1
U85755 mRNA Translation: AAD00575.1
AC008814 Genomic DNA No translation available.
BC013879 mRNA Translation: AAH13879.1
CCDSiCCDS3974.1
RefSeqiNP_001239155.1, NM_001252226.1
NP_006613.2, NM_006622.3

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
4I5MX-ray1.80A57-360[»]
4I5PX-ray1.74A57-360[»]
4I6BX-ray1.80A57-360[»]
4I6FX-ray2.90A57-360[»]
4I6HX-ray1.91A57-360[»]
4RS6X-ray2.60A/B451-685[»]
4XB0X-ray2.70A/B468-685[»]
AlphaFoldDBiQ9NYY3
SMRiQ9NYY3
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi115988, 54 interactors
DIPiDIP-48943N
IntActiQ9NYY3, 48 interactors
MINTiQ9NYY3
STRINGi9606.ENSP00000274289

Chemistry databases

BindingDBiQ9NYY3
ChEMBLiCHEMBL5938
DrugBankiDB12010, Fostamatinib
DrugCentraliQ9NYY3
GuidetoPHARMACOLOGYi2169

PTM databases

iPTMnetiQ9NYY3
PhosphoSitePlusiQ9NYY3

Genetic variation databases

BioMutaiPLK2
DMDMi22096374

Proteomic databases

MassIVEiQ9NYY3
MaxQBiQ9NYY3
PaxDbiQ9NYY3
PeptideAtlasiQ9NYY3
PRIDEiQ9NYY3
ProteomicsDBi83299

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		4042, 265 antibodies from 32 providers

The DNASU plasmid repository

More...DNASUi		10769

Genome annotation databases

EnsembliENST00000274289.8; ENSP00000274289.3; ENSG00000145632.15
GeneIDi10769
KEGGihsa:10769
MANE-SelectiENST00000274289.8; ENSP00000274289.3; NM_006622.4; NP_006613.2
UCSCiuc003jrn.4, human

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		10769
DisGeNETi10769

GeneCards: human genes, protein and diseases

More...GeneCardsi		PLK2
HGNCiHGNC:19699, PLK2
HPAiENSG00000145632, Low tissue specificity
MIMi607023, gene
neXtProtiNX_Q9NYY3
OpenTargetsiENSG00000145632
PharmGKBiPA134940798
VEuPathDBiHostDB:ENSG00000145632

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG0575, Eukaryota
GeneTreeiENSGT00940000158739
InParanoidiQ9NYY3
OMAiMPEADSN
OrthoDBi507604at2759
PhylomeDBiQ9NYY3
TreeFamiTF101089

Enzyme and pathway databases

BRENDAi2.7.11.21, 2681
PathwayCommonsiQ9NYY3
ReactomeiR-HSA-6804115, TP53 regulates transcription of additional cell cycle genes whose exact role in the p53 pathway remain uncertain
R-HSA-9662834, CD163 mediating an anti-inflammatory response
SignaLinkiQ9NYY3
SIGNORiQ9NYY3

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		10769, 11 hits in 1103 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		PLK2, human

The Gene Wiki collection of pages on human genes and proteins

More...GeneWikii		PLK2

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		10769
PharosiQ9NYY3, Tchem

Protein Ontology

More...PROi		PR:Q9NYY3
RNActiQ9NYY3, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000145632, Expressed in frontal cortex and 239 other tissues
ExpressionAtlasiQ9NYY3, baseline and differential
GenevisibleiQ9NYY3, HS

Family and domain databases

CDDicd13118, POLO_box_1, 1 hit
cd13117, POLO_box_2, 1 hit
cd14188, STKc_PLK2, 1 hit
Gene3Di3.30.1120.30, 2 hits
InterProiView protein in InterPro
IPR011009, Kinase-like_dom_sf
IPR042825, PLK2_STKc
IPR033701, POLO_box_1
IPR033695, POLO_box_2
IPR000959, POLO_box_dom
IPR036947, POLO_box_dom_sf
IPR000719, Prot_kinase_dom
IPR017441, Protein_kinase_ATP_BS
IPR008271, Ser/Thr_kinase_AS
PfamiView protein in Pfam
PF00069, Pkinase, 1 hit
PF00659, POLO_box, 2 hits
SMARTiView protein in SMART
SM00220, S_TKc, 1 hit
SUPFAMiSSF56112, SSF56112, 1 hit
PROSITEiView protein in PROSITE
PS50078, POLO_BOX, 2 hits
PS00107, PROTEIN_KINASE_ATP, 1 hit
PS50011, PROTEIN_KINASE_DOM, 1 hit
PS00108, PROTEIN_KINASE_ST, 1 hit

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 nameiPLK2_HUMAN
<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: Q9NYY3
Secondary accession number(s): O60679, Q96CV7, Q9UE61
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 11, 2001
Last sequence update: August 2, 2002
Last modified: May 25, 2022
This is version 189 of the entry and version 3 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
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

<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, Reference proteome

Documents

  1. Human and mouse protein kinases
    Human and mouse protein kinases: classification and index
  2. Human chromosome 5
    Human chromosome 5: entries, gene names and cross-references to MIM
  3. Human entries with genetic variants
    List of human entries with genetic variants
  4. Human variants curated from literature reports
    Index of human variants curated from literature reports
  5. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  6. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  7. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again