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UniProtKB - O75417 (DPOLQ_HUMAN)

Entry version 155 (07 Apr 2021)
Sequence version 2 (08 Mar 2011)
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Protein

DNA polymerase theta

Gene

POLQ

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

DNA polymerase that promotes microhomology-mediated end-joining (MMEJ), an alternative non-homologous end-joining (NHEJ) machinery triggered in response to double-strand breaks in DNA (PubMed:25642963, PubMed:25643323). MMEJ is an error-prone repair pathway that produces deletions of sequences from the strand being repaired and promotes genomic rearrangements, such as telomere fusions, some of them leading to cellular transformation (PubMed:25642963, PubMed:25643323). POLQ acts as an inhibitor of homology-recombination repair (HR) pathway by limiting RAD51 accumulation at resected ends (PubMed:25642963). POLQ-mediated MMEJ may be required to promote the survival of cells with a compromised HR repair pathway, thereby preventing genomic havoc by resolving unrepaired lesions (By similarity). The polymerase acts by binding directly the 2 ends of resected double-strand breaks, allowing microhomologous sequences in the overhangs to form base pairs. It then extends each strand from the base-paired region using the opposing overhang as a template. Requires partially resected DNA containing 2 to 6 base pairs of microhomology to perform MMEJ (PubMed:25643323). The polymerase activity is highly promiscuous: unlike most polymerases, promotes extension of ssDNA and partial ssDNA (pssDNA) substrates (PubMed:18503084, PubMed:21050863, PubMed:22135286). Also exhibits low-fidelity DNA synthesis, translesion synthesis and lyase activity, and it is implicated in interstrand-cross-link repair, base excision repair and DNA end-joining (PubMed:14576298, PubMed:18503084, PubMed:19188258, PubMed:24648516). Involved in somatic hypermutation of immunoglobulin genes, a process that requires the activity of DNA polymerases to ultimately introduce mutations at both A/T and C/G base pairs (By similarity).By similarity8 Publications

Caution

Was wrongly named DNA polymerase eta (POLH) somne authors (Ref. 4). This protein corresponds to DNA polymerase theta (POLQ) and should not be confused with DNA polymerase eta (POLH) (AC Q9Y253).Curated

<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 '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

  1. KM=1.095 µM for dATP:T1 Publication
  2. KM=0.622 µM for dATP: abasic site1 Publication
  3. KM=3.08 µM for dGTP: no template1 Publication

    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 bindingi115 – 122ATPPROSITE-ProRule annotation8

    <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 functionDNA-directed DNA polymerase, Nucleotidyltransferase, Transferase
    Biological processDNA damage, DNA repair
    LigandATP-binding, Nucleotide-binding

    Enzyme and pathway databases

    Pathway Commons web resource for biological pathway data

    More...    PathwayCommonsi    		O75417

    Reactome - a knowledgebase of biological pathways and processes

    More...    Reactomei    		R-HSA-5685939, HDR through MMEJ (alt-NHEJ)

    SABIO-RK: Biochemical Reaction Kinetics Database

    More...    SABIO-RKi    		O75417

    <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:
    DNA polymerase theta2 PublicationsImported (EC:2.7.7.72 Publications)
    Alternative name(s):
    DNA polymerase eta1 Publication
    <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:POLQ2 PublicationsImported
    Synonyms:POLH1 Publication
    <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 3

    Organism-specific databases

    Human Gene Nomenclature Database

    More...    HGNCi    		HGNC:9186, POLQ

    Online Mendelian Inheritance in Man (OMIM)

    More...    MIMi    		604419, gene

    neXtProt; the human protein knowledge platform

    More...    neXtProti    		NX_O75417

    Eukaryotic Pathogen, Vector and Host Database Resources

    More...    VEuPathDBi    		HostDB:ENSG00000051341.13

    <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

    Chromosome, Nucleus

    <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

    <p>This subsection of the 'Pathology and Biotech' section provides information on the disease(s) associated with genetic variations in a given protein. The information is extracted from the scientific literature and diseases that are also described in the <a href="http://www.ncbi.nlm.nih.gov/sites/entrez?db=omim">OMIM</a> database are represented with a <a href="http://www.uniprot.org/diseases">controlled vocabulary</a> in the following way:<p><a href='/help/involvement_in_disease' target='_top'>More...</a></p>Involvement in diseasei

    Breast cancer (BC)3 Publications
    The gene represented in this entry may be involved in disease pathogenesis.
    Disease descriptionA common malignancy originating from breast epithelial tissue. Breast neoplasms can be distinguished by their histologic pattern. Invasive ductal carcinoma is by far the most common type. Breast cancer is etiologically and genetically heterogeneous. Important genetic factors have been indicated by familial occurrence and bilateral involvement. Mutations at more than one locus can be involved in different families or even in the same case.
    Related information in OMIM

    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>Mutagenesisi2540 – 2541DE → AA: Abolishes DNA polymerase activity. 2 Publications2

    Organism-specific databases

    DisGeNET

    More...    DisGeNETi    		10721
    MIMi114480, phenotype

    Open Targets

    More...    OpenTargetsi    		ENSG00000051341

    The Pharmacogenetics and Pharmacogenomics Knowledge Base

    More...    PharmGKBi    		PA33506

    Miscellaneous databases

    Pharos NIH Druggable Genome Knowledgebase

    More...    Pharosi    		O75417, Tbio

    Chemistry databases

    ChEMBL database of bioactive drug-like small molecules

    More...    ChEMBLi    		CHEMBL6025

    Genetic variation databases

    BioMuta curated single-nucleotide variation and disease association database

    More...    BioMutai    		POLQ

    <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_00001012791 – 2590DNA polymerase thetaAdd BLAST2590

    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 residuei990N6-acetyllysineCombined sources1

    Keywords - PTMi

    Acetylation

    Proteomic databases

    Encyclopedia of Proteome Dynamics

    More...    EPDi    		O75417

    jPOST - Japan Proteome Standard Repository/Database

    More...    jPOSTi    		O75417

    MassIVE - Mass Spectrometry Interactive Virtual Environment

    More...    MassIVEi    		O75417

    MaxQB - The MaxQuant DataBase

    More...    MaxQBi    		O75417

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

    More...    PaxDbi    		O75417

    PeptideAtlas

    More...    PeptideAtlasi    		O75417

    PRoteomics IDEntifications database

    More...    PRIDEi    		O75417

    ProteomicsDB: a multi-organism proteome resource

    More...    ProteomicsDBi    		49988 [O75417-1]
    49989 [O75417-2]

    PTM databases

    iPTMnet integrated resource for PTMs in systems biology context

    More...    iPTMneti    		O75417

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

    More...    PhosphoSitePlusi    		O75417

    <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

    Highly expressed in testis.1 Publication

    Gene expression databases

    Bgee dataBase for Gene Expression Evolution

    More...    Bgeei    		ENSG00000051341, Expressed in secondary oocyte and 114 other tissues

    ExpressionAtlas, Differential and Baseline Expression

    More...    ExpressionAtlasi    		O75417, baseline and differential

    Genevisible search portal to normalized and curated expression data from Genevestigator

    More...    Genevisiblei    		O75417, HS

    Organism-specific databases

    Human Protein Atlas

    More...    HPAi    		ENSG00000051341, Tissue enhanced (bone marrow, lymphoid tissue)

    <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

    Homomultimer; forms dimers and multimers (PubMed:25643323).

    Interacts with RAD51 (PubMed:25642963).

    Interacts with ORC2 and ORC4 (PubMed:24989122).

    3 Publications

    <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    		115946, 6 interactors

    Database of interacting proteins

    More...    DIPi    		DIP-61500N

    Protein interaction database and analysis system

    More...    IntActi    		O75417, 3 interactors

    STRING: functional protein association networks

    More...    STRINGi    		9606.ENSP00000264233

    Miscellaneous databases

    RNAct, Protein-RNA interaction predictions for model organisms.

    More...    RNActi    		O75417, 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

    12590
    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    		O75417

    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>Domaini102 – 286Helicase ATP-bindingPROSITE-ProRule annotationAdd BLAST185
    Domaini321 – 554Helicase C-terminalPROSITE-ProRule annotationAdd BLAST234

    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>Regioni847 – 894Interaction with RAD511 PublicationAdd BLAST48
    Regioni2142 – 2177Loop 11 PublicationAdd BLAST36
    Regioni2257 – 2322Loop 22 PublicationsAdd BLAST66
    Regioni2491 – 2535Loop 31 PublicationAdd BLAST45

    Coiled coil

    Feature keyPosition(s)DescriptionActionsGraphical viewLength
    <p>This subsection of the 'Family and domains' section denotes the positions of regions of coiled coil within the protein.<p><a href='/help/coiled' target='_top'>More...</a></p>Coiled coili1655 – 1716Sequence analysisAdd BLAST62

    Motif

    Feature keyPosition(s)DescriptionActionsGraphical viewLength
    <p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi216 – 219DEAH box4

    <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 loop 2 region is involved in the binding of the 2 ends of resected double-strand breaks and homomultimerization.1 Publication

    <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 DNA polymerase type-A family.Curated

    Keywords - Domaini

    Coiled coil

    Phylogenomic databases

    evolutionary genealogy of genes: Non-supervised Orthologous Groups

    More...    eggNOGi    		KOG0950, Eukaryota

    Ensembl GeneTree

    More...    GeneTreei    		ENSGT00940000158694

    The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

    More...    HOGENOMi    		CLU_000818_0_1_1

    InParanoid: Eukaryotic Ortholog Groups

    More...    InParanoidi    		O75417

    Database of Orthologous Groups

    More...    OrthoDBi    		179246at2759

    Database for complete collections of gene phylogenies

    More...    PhylomeDBi    		O75417

    TreeFam database of animal gene trees

    More...    TreeFami    		TF105018

    Family and domain databases

    Gene3D Structural and Functional Annotation of Protein Families

    More...    Gene3Di    		3.30.420.10, 1 hit

    Integrated resource of protein families, domains and functional sites

    More...    InterProi    		View protein in InterPro
    IPR011545, DEAD/DEAH_box_helicase_dom
    IPR019760, DNA-dir_DNA_pol_A_CS
    IPR001098, DNA-dir_DNA_pol_A_palm_dom
    IPR043502, DNA/RNA_pol_sf
    IPR002298, DNA_polymerase_A
    IPR014001, Helicase_ATP-bd
    IPR001650, Helicase_C
    IPR027417, P-loop_NTPase
    IPR012337, RNaseH-like_sf
    IPR036397, RNaseH_sf

    The PANTHER Classification System

    More...    PANTHERi    		PTHR10133, PTHR10133, 1 hit

    Pfam protein domain database

    More...    Pfami    		View protein in Pfam
    PF00270, DEAD, 1 hit
    PF00476, DNA_pol_A, 1 hit
    PF00271, Helicase_C, 1 hit

    Protein Motif fingerprint database; a protein domain database

    More...    PRINTSi    		PR00868, DNAPOLI

    Simple Modular Architecture Research Tool; a protein domain database

    More...    SMARTi    		View protein in SMART
    SM00487, DEXDc, 1 hit
    SM00490, HELICc, 1 hit
    SM00482, POLAc, 1 hit

    Superfamily database of structural and functional annotation

    More...    SUPFAMi    		SSF52540, SSF52540, 1 hit
    SSF53098, SSF53098, 1 hit
    SSF56672, SSF56672, 1 hit

    PROSITE; a protein domain and family database

    More...    PROSITEi    		View protein in PROSITE
    PS00447, DNA_POLYMERASE_A, 1 hit
    PS51192, HELICASE_ATP_BIND_1, 1 hit
    PS51194, HELICASE_CTER, 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>Sequences (2+)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 describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform. This section is only present in reviewed entries, i.e. in UniProtKB/Swiss-Prot.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket

    This entry has 2 described isoforms and 1 potential isoform that is computationally mapped.Show allAlign All

    Isoform 1 (identifier: O75417-1) [UniParc]FASTAAdd to basket

    This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

    « Hide
            10         20         30         40         50
    MNLLRRSGKR RRSESGSDSF SGSGGDSSAS PQFLSGSVLS PPPGLGRCLK 
            60         70         80         90        100
    AAAAGECKPT VPDYERDKLL LANWGLPKAV LEKYHSFGVK KMFEWQAECL 
           110        120        130        140        150
    LLGQVLEGKN LVYSAPTSAG KTLVAELLIL KRVLEMRKKA LFILPFVSVA 
           160        170        180        190        200
    KEKKYYLQSL FQEVGIKVDG YMGSTSPSRH FSSLDIAVCT IERANGLINR 
           210        220        230        240        250
    LIEENKMDLL GMVVVDELHM LGDSHRGYLL ELLLTKICYI TRKSASCQAD 
           260        270        280        290        300
    LASSLSNAVQ IVGMSATLPN LELVASWLNA ELYHTDFRPV PLLESVKVGN 
           310        320        330        340        350
    SIYDSSMKLV REFEPMLQVK GDEDHVVSLC YETICDNHSV LLFCPSKKWC 
           360        370        380        390        400
    EKLADIIARE FYNLHHQAEG LVKPSECPPV ILEQKELLEV MDQLRRLPSG 
           410        420        430        440        450
    LDSVLQKTVP WGVAFHHAGL TFEERDIIEG AFRQGLIRVL AATSTLSSGV 
           460        470        480        490        500
    NLPARRVIIR TPIFGGRPLD ILTYKQMVGR AGRKGVDTVG ESILICKNSE 
           510        520        530        540        550
    KSKGIALLQG SLKPVRSCLQ RREGEEVTGS MIRAILEIIV GGVASTSQDM 
           560        570        580        590        600
    HTYAACTFLA ASMKEGKQGI QRNQESVQLG AIEACVMWLL ENEFIQSTEA 
           610        620        630        640        650
    SDGTEGKVYH PTHLGSATLS SSLSPADTLD IFADLQRAMK GFVLENDLHI 
           660        670        680        690        700
    LYLVTPMFED WTTIDWYRFF CLWEKLPTSM KRVAELVGVE EGFLARCVKG 
           710        720        730        740        750
    KVVARTERQH RQMAIHKRFF TSLVLLDLIS EVPLREINQK YGCNRGQIQS 
           760        770        780        790        800
    LQQSAAVYAG MITVFSNRLG WHNMELLLSQ FQKRLTFGIQ RELCDLVRVS 
           810        820        830        840        850
    LLNAQRARVL YASGFHTVAD LARANIVEVE VILKNAVPFK SARKAVDEEE 
           860        870        880        890        900
    EAVEERRNMR TIWVTGRKGL TEREAAALIV EEARMILQQD LVEMGVQWNP 
           910        920        930        940        950
    CALLHSSTCS LTHSESEVKE HTFISQTKSS YKKLTSKNKS NTIFSDSYIK 
           960        970        980        990       1000
    HSPNIVQDLN KSREHTSSFN CNFQNGNQEH QTCSIFRARK RASLDINKEK 
          1010       1020       1030       1040       1050
    PGASQNEGKT SDKKVVQTFS QKTKKAPLNF NSEKMSRSFR SWKRRKHLKR 
          1060       1070       1080       1090       1100
    SRDSSPLKDS GACRIHLQGQ TLSNPSLCED PFTLDEKKTE FRNSGPFAKN 
          1110       1120       1130       1140       1150
    VSLSGKEKDN KTSFPLQIKQ NCSWNITLTN DNFVEHIVTG SQSKNVTCQA 
          1160       1170       1180       1190       1200
    TSVVSEKGRG VAVEAEKINE VLIQNGSKNQ NVYMKHHDIH PINQYLRKQS 
          1210       1220       1230       1240       1250
    HEQTSTITKQ KNIIERQMPC EAVSSYINRD SNVTINCERI KLNTEENKPS 
          1260       1270       1280       1290       1300
    HFQALGDDIS RTVIPSEVLP SAGAFSKSEG QHENFLNISR LQEKTGTYTT 
          1310       1320       1330       1340       1350
    NKTKNNHVSD LGLVLCDFED SFYLDTQSEK IIQQMATENA KLGAKDTNLA 
          1360       1370       1380       1390       1400
    AGIMQKSLVQ QNSMNSFQKE CHIPFPAEQH PLGATKIDHL DLKTVGTMKQ 
          1410       1420       1430       1440       1450
    SSDSHGVDIL TPESPIFHSP ILLEENGLFL KKNEVSVTDS QLNSFLQGYQ 
          1460       1470       1480       1490       1500
    TQETVKPVIL LIPQKRTPTG VEGECLPVPE TSLNMSDSLL FDSFSDDYLV 
          1510       1520       1530       1540       1550
    KEQLPDMQMK EPLPSEVTSN HFSDSLCLQE DLIKKSNVNE NQDTHQQLTC 
          1560       1570       1580       1590       1600
    SNDESIIFSE MDSVQMVEAL DNVDIFPVQE KNHTVVSPRA LELSDPVLDE 
          1610       1620       1630       1640       1650
    HHQGDQDGGD QDERAEKSKL TGTRQNHSFI WSGASFDLSP GLQRILDKVS 
          1660       1670       1680       1690       1700
    SPLENEKLKS MTINFSSLNR KNTELNEEQE VISNLETKQV QGISFSSNNE 
          1710       1720       1730       1740       1750
    VKSKIEMLEN NANHDETSSL LPRKESNIVD DNGLIPPTPI PTSASKLTFP 
          1760       1770       1780       1790       1800
    GILETPVNPW KTNNVLQPGE SYLFGSPSDI KNHDLSPGSR NGFKDNSPIS 
          1810       1820       1830       1840       1850
    DTSFSLQLSQ DGLQLTPASS SSESLSIIDV ASDQNLFQTF IKEWRCKKRF 
          1860       1870       1880       1890       1900
    SISLACEKIR SLTSSKTATI GSRFKQASSP QEIPIRDDGF PIKGCDDTLV 
          1910       1920       1930       1940       1950
    VGLAVCWGGR DAYYFSLQKE QKHSEISASL VPPSLDPSLT LKDRMWYLQS 
          1960       1970       1980       1990       2000
    CLRKESDKEC SVVIYDFIQS YKILLLSCGI SLEQSYEDPK VACWLLDPDS 
          2010       2020       2030       2040       2050
    QEPTLHSIVT SFLPHELPLL EGMETSQGIQ SLGLNAGSEH SGRYRASVES 
          2060       2070       2080       2090       2100
    ILIFNSMNQL NSLLQKENLQ DVFRKVEMPS QYCLALLELN GIGFSTAECE 
          2110       2120       2130       2140       2150
    SQKHIMQAKL DAIETQAYQL AGHSFSFTSS DDIAEVLFLE LKLPPNREMK 
          2160       2170       2180       2190       2200
    NQGSKKTLGS TRRGIDNGRK LRLGRQFSTS KDVLNKLKAL HPLPGLILEW 
          2210       2220       2230       2240       2250
    RRITNAITKV VFPLQREKCL NPFLGMERIY PVSQSHTATG RITFTEPNIQ 
          2260       2270       2280       2290       2300
    NVPRDFEIKM PTLVGESPPS QAVGKGLLPM GRGKYKKGFS VNPRCQAQME 
          2310       2320       2330       2340       2350
    ERAADRGMPF SISMRHAFVP FPGGSILAAD YSQLELRILA HLSHDRRLIQ 
          2360       2370       2380       2390       2400
    VLNTGADVFR SIAAEWKMIE PESVGDDLRQ QAKQICYGII YGMGAKSLGE 
          2410       2420       2430       2440       2450
    QMGIKENDAA CYIDSFKSRY TGINQFMTET VKNCKRDGFV QTILGRRRYL 
          2460       2470       2480       2490       2500
    PGIKDNNPYR KAHAERQAIN TIVQGSAADI VKIATVNIQK QLETFHSTFK 
          2510       2520       2530       2540       2550
    SHGHREGMLQ SDQTGLSRKR KLQGMFCPIR GGFFILQLHD ELLYEVAEED 
          2560       2570       2580       2590
    VVQVAQIVKN EMESAVKLSV KLKVKVKIGA SWGELKDFDV
    Length:2,590
    Mass (Da):289,619
    Last modified:March 8, 2011 - v2
    <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:iF5550BED2DAD8013
    GO
    Isoform 2 (identifier: O75417-2) [UniParc]FASTAAdd to basket

    The sequence of this isoform differs from the canonical sequence as follows:
         1-828: Missing.
         829-840: VEVILKNAVPFK → MNSFLSFPISLC

    Show »
    Length:1,762
    Mass (Da):197,541
    Checksum:iACA2EA21B2B69C15
    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
    A0A087WXL3A0A087WXL3_HUMAN
    DNA-directed DNA polymerase
    POLQ
    		2,725Annotation 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>

    <p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

    The sequence AAD05272 differs from that shown. Reason: Frameshift.Curated

    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 conflicti66R → I in AAR08421 (PubMed:14576298).Curated1
    Sequence conflicti982T → R in AAR08421 (PubMed:14576298).Curated1
    Sequence conflicti2013L → F in AAD05272 (Ref. 4) Curated1
    Sequence conflicti2513Q → R in AAC33565 (PubMed:10395804).Curated1
    Sequence conflicti2513Q → R in AAR08421 (PubMed:14576298).Curated1
    Sequence conflicti2547A → V in AAC33565 (PubMed:10395804).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_0557071056P → L. Corresponds to variant dbSNP:rs34778629EnsemblClinVar.1

    Alternative sequence

    Feature keyPosition(s)DescriptionActionsGraphical viewLength
    <p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_0407471 – 828Missing in isoform 2. 1 PublicationAdd BLAST828
    Alternative sequenceiVSP_040748829 – 840VEVIL…AVPFK → MNSFLSFPISLC in isoform 2. 1 PublicationAdd BLAST12

    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
    		AF052573 mRNA Translation: AAC33565.1
    AY338826 mRNA Translation: AAR08421.2
    AC069239 Genomic DNA No translation available.
    AC079841 Genomic DNA No translation available.
    AF043628 mRNA Translation: AAD05272.1 Frameshift.

    The Consensus CDS (CCDS) project

    More...    CCDSi    		CCDS33833.1 [O75417-1]

    NCBI Reference Sequences

    More...    RefSeqi    		NP_955452.3, NM_199420.3 [O75417-1]

    Genome annotation databases

    Ensembl eukaryotic genome annotation project

    More...    Ensembli    		ENST00000264233; ENSP00000264233; ENSG00000051341 [O75417-1]

    Database of genes from NCBI RefSeq genomes

    More...    GeneIDi    		10721

    KEGG: Kyoto Encyclopedia of Genes and Genomes

    More...    KEGGi    		hsa:10721

    UCSC genome browser

    More...    UCSCi    		uc003eee.5, human [O75417-1]

    Keywords - Coding sequence diversityi

    Alternative splicing

    <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
    		AF052573 mRNA Translation: AAC33565.1
    AY338826 mRNA Translation: AAR08421.2
    AC069239 Genomic DNA No translation available.
    AC079841 Genomic DNA No translation available.
    AF043628 mRNA Translation: AAD05272.1 Frameshift.
    CCDSiCCDS33833.1 [O75417-1]
    RefSeqiNP_955452.3, NM_199420.3 [O75417-1]

    3D structure databases

    Select the link destinations:

    Protein Data Bank Europe

    More...    PDBei

    Protein Data Bank RCSB

    More...    RCSB PDBi

    Protein Data Bank Japan

    More...    PDBji
    Links Updated
    		PDB entryMethodResolution (Å)ChainPositionsPDBsum
    4X0PX-ray3.91A/B/C/D1792-2590[»]
    4X0QX-ray3.90A/B1819-2590[»]
    5A9FX-ray3.20A67-894[»]
    5A9JX-ray3.55A/B/C/D1-894[»]
    5AGAX-ray2.90A67-894[»]
    SMRiO75417
    ModBaseiSearch...
    PDBe-KBiSearch...

    Protein-protein interaction databases

    BioGRIDi115946, 6 interactors
    DIPiDIP-61500N
    IntActiO75417, 3 interactors
    STRINGi9606.ENSP00000264233

    Chemistry databases

    ChEMBLiCHEMBL6025

    PTM databases

    iPTMnetiO75417
    PhosphoSitePlusiO75417

    Genetic variation databases

    BioMutaiPOLQ

    Proteomic databases

    EPDiO75417
    jPOSTiO75417
    MassIVEiO75417
    MaxQBiO75417
    PaxDbiO75417
    PeptideAtlasiO75417
    PRIDEiO75417
    ProteomicsDBi49988 [O75417-1]
    49989 [O75417-2]

    Protocols and materials databases

    Antibodypedia a portal for validated antibodies

    More...    Antibodypediai    		32825, 74 antibodies

    The DNASU plasmid repository

    More...    DNASUi    		10721

    Genome annotation databases

    EnsembliENST00000264233; ENSP00000264233; ENSG00000051341 [O75417-1]
    GeneIDi10721
    KEGGihsa:10721
    UCSCiuc003eee.5, human [O75417-1]

    Organism-specific databases

    Comparative Toxicogenomics Database

    More...    CTDi    		10721
    DisGeNETi10721

    GeneCards: human genes, protein and diseases

    More...    GeneCardsi    		POLQ
    HGNCiHGNC:9186, POLQ
    HPAiENSG00000051341, Tissue enhanced (bone marrow, lymphoid tissue)
    MIMi114480, phenotype
    604419, gene
    neXtProtiNX_O75417
    OpenTargetsiENSG00000051341
    PharmGKBiPA33506
    VEuPathDBiHostDB:ENSG00000051341.13

    GenAtlas: human gene database

    More...    GenAtlasi    		Search...

    Phylogenomic databases

    eggNOGiKOG0950, Eukaryota
    GeneTreeiENSGT00940000158694
    HOGENOMiCLU_000818_0_1_1
    InParanoidiO75417
    OrthoDBi179246at2759
    PhylomeDBiO75417
    TreeFamiTF105018

    Enzyme and pathway databases

    PathwayCommonsiO75417
    ReactomeiR-HSA-5685939, HDR through MMEJ (alt-NHEJ)
    SABIO-RKiO75417

    Miscellaneous databases

    BioGRID ORCS database of CRISPR phenotype screens

    More...    BioGRID-ORCSi    		10721, 100 hits in 998 CRISPR screens

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

    More...    ChiTaRSi    		POLQ, human

    The Gene Wiki collection of pages on human genes and proteins

    More...    GeneWikii    		POLQ

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

    More...    GenomeRNAii    		10721
    PharosiO75417, Tbio

    Protein Ontology

    More...    PROi    		PR:O75417
    RNActiO75417, protein

    The Stanford Online Universal Resource for Clones and ESTs

    More...    SOURCEi    		Search...

    Gene expression databases

    BgeeiENSG00000051341, Expressed in secondary oocyte and 114 other tissues
    ExpressionAtlasiO75417, baseline and differential
    GenevisibleiO75417, HS

    Family and domain databases

    Gene3Di3.30.420.10, 1 hit
    InterProiView protein in InterPro
    IPR011545, DEAD/DEAH_box_helicase_dom
    IPR019760, DNA-dir_DNA_pol_A_CS
    IPR001098, DNA-dir_DNA_pol_A_palm_dom
    IPR043502, DNA/RNA_pol_sf
    IPR002298, DNA_polymerase_A
    IPR014001, Helicase_ATP-bd
    IPR001650, Helicase_C
    IPR027417, P-loop_NTPase
    IPR012337, RNaseH-like_sf
    IPR036397, RNaseH_sf
    PANTHERiPTHR10133, PTHR10133, 1 hit
    PfamiView protein in Pfam
    PF00270, DEAD, 1 hit
    PF00476, DNA_pol_A, 1 hit
    PF00271, Helicase_C, 1 hit
    PRINTSiPR00868, DNAPOLI
    SMARTiView protein in SMART
    SM00487, DEXDc, 1 hit
    SM00490, HELICc, 1 hit
    SM00482, POLAc, 1 hit
    SUPFAMiSSF52540, SSF52540, 1 hit
    SSF53098, SSF53098, 1 hit
    SSF56672, SSF56672, 1 hit
    PROSITEiView protein in PROSITE
    PS00447, DNA_POLYMERASE_A, 1 hit
    PS51192, HELICASE_ATP_BIND_1, 1 hit
    PS51194, HELICASE_CTER, 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 nameiDPOLQ_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: O75417
    Secondary accession number(s): O95160, Q6VMB5
    <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: May 30, 2000
    Last sequence update: March 8, 2011
    Last modified: April 7, 2021
    This is version 155 of the entry and version 2 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 chromosome 3
      Human chromosome 3: entries, gene names and cross-references to MIM
    2. Human entries with genetic variants
      List of human entries with genetic variants
    3. Human variants curated from literature reports
      Index of human variants curated from literature reports
    4. MIM cross-references
      Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
    5. PDB cross-references
      Index of Protein Data Bank (PDB) cross-references
    6. SIMILARITY comments
      Index of protein domains and families
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