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UniProtKB - Q58839 (FEN_METJA)

Entry version 131 (02 Jun 2021)
Sequence version 1 (01 Nov 1996)
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Protein

Flap endonuclease 1

Gene

fen

Organism
Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) (Methanococcus jannaschii)
Status
Reviewed-Annotation score:

Annotation score:4 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

Structure-specific nuclease with 5'-flap endonuclease and 5'-3' exonuclease activities involved in DNA replication and repair. During DNA replication, cleaves the 5'-overhanging flap structure that is generated by displacement synthesis when DNA polymerase encounters the 5'-end of a downstream Okazaki fragment. Binds the unpaired 3'-DNA end and kinks the DNA to facilitate 5' cleavage specificity. Cleaves one nucleotide into the double-stranded DNA from the junction in flap DNA, leaving a nick for ligation. Also involved in the base excision repair (BER) pathway. Acts as a genome stabilization factor that prevents flaps from equilibrating into structures that lead to duplications and deletions. Also possesses 5'-3' exonuclease activity on nicked or gapped double-stranded DNA.

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Mg2+UniRule annotationNote: Binds 2 magnesium ions per subunit. They probably participate in the reaction catalyzed by the enzyme. May bind an additional third magnesium ion after substrate binding.UniRule annotation

<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>pH dependencei

Optimum pH is 6-7.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi27Magnesium 1UniRule annotation1
Metal bindingi80Magnesium 1UniRule annotation1
Metal bindingi152Magnesium 1Combined sources1 Publication1
Metal bindingi154Magnesium 1Combined sources1 Publication1
Metal bindingi173Magnesium 2UniRule annotation1
Metal bindingi175Magnesium 2UniRule annotation1
Metal bindingi224Magnesium 2Combined sources1 Publication1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

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 functionEndonuclease, Exonuclease, Hydrolase, Nuclease
Biological processDNA damage, DNA repair, DNA replication
LigandMagnesium, Metal-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		MJAN243232:G1GKE-1566-MONOMER

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		3.1.99.B1, 3260

<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:
Flap endonuclease 1UniRule annotation (EC:3.1.-.-UniRule annotation)
Short name:
FEN-1UniRule annotation
Alternative name(s):
Flap structure-specific endonuclease 1UniRule annotation
<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:fenUniRule annotation
Ordered Locus Names:MJ1444
<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>OrganismiMethanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) (Methanococcus jannaschii)
<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 identifieri243232 [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 lineageiArchaea › Euryarchaeota › Methanomada group › Methanococci › Methanococcales › Methanocaldococcaceae › Methanocaldococcus ›
<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
  • UP000000805 <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

<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_00001540531 – 326Flap endonuclease 1Add BLAST326

<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 PCNA. PCNA stimulates the nuclease activity without altering cleavage specificity.

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		243232.MJ_1444

<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

1326
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		Q58839

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		Q58839

<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>Regioni1 – 98N-domainAdd BLAST98
Regioni116 – 245I-domainAdd BLAST130
Regioni317 – 325Interaction with PCNAUniRule annotation9

<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 XPG/RAD2 endonuclease family. FEN1 subfamily.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		arCOG04050, Archaea

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_032444_0_0_2

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q58839

Identification of Orthologs from Complete Genome Data

More...OMAi		CDYLDPI

Database of Orthologous Groups

More...OrthoDBi		41214at2157

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q58839

Family and domain databases

HAMAP database of protein families

More...HAMAPi		MF_00614, Fen, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR036279, 5-3_exonuclease_C_sf
IPR023426, Flap_endonuc
IPR019973, Flap_structure-sp_endonuc_arc
IPR008918, HhH2
IPR029060, PIN-like_dom_sf
IPR006086, XPG-I_dom
IPR006084, XPG/Rad2
IPR006085, XPG_DNA_repair_N

The PANTHER Classification System

More...PANTHERi		PTHR11081, PTHR11081, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00867, XPG_I, 1 hit
PF00752, XPG_N, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00853, XPGRADSUPER

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00279, HhH2, 1 hit
SM00484, XPGI, 1 hit
SM00485, XPGN, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF47807, SSF47807, 1 hit
SSF88723, SSF88723, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR03674, fen_arch, 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>Sequencei

<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.

Q58839-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGVQFGDFIP KNIISFEDLK GKKVAIDGMN ALYQFLTSIR LRDGSPLRNR 
        60         70         80         90        100
KGEITSAYNG VFYKTIHLLE NDITPIWVFD GEPPKLKEKT RKVRREMKEK 
       110        120        130        140        150
AELKMKEAIK KEDFEEAAKY AKRVSYLTPK MVENCKYLLS LMGIPYVEAP 
       160        170        180        190        200
SEGEAQASYM AKKGDVWAVV SQDYDALLYG APRVVRNLTT TKEMPELIEL 
       210        220        230        240        250
NEVLEDLRIS LDDLIDIAIF MGTDYNPGGV KGIGFKRAYE LVRSGVAKDV 
       260        270        280        290        300
LKKEVEYYDE IKRIFKEPKV TDNYSLSLKL PDKEGIIKFL VDENDFNYDR 
       310        320 
VKKHVDKLYN LIANKTKQKT LDAWFK
Length:326
Mass (Da):37,527
Last modified:November 1, 1996 - 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:i311427F2B4B67580
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
L77117 Genomic DNA Translation: AAB99454.1

Protein sequence database of the Protein Information Resource

More...PIRi		C64480

NCBI Reference Sequences

More...RefSeqi		WP_010870964.1, NC_000909.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAB99454; AAB99454; MJ_1444

Database of genes from NCBI RefSeq genomes

More...GeneIDi		1452348

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		mja:MJ_1444

<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
L77117 Genomic DNA Translation: AAB99454.1
PIRiC64480
RefSeqiWP_010870964.1, NC_000909.1

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
1A76X-ray2.00A1-326[»]
1A77X-ray2.00A1-326[»]
SMRiQ58839
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi243232.MJ_1444

Genome annotation databases

EnsemblBacteriaiAAB99454; AAB99454; MJ_1444
GeneIDi1452348
KEGGimja:MJ_1444

Phylogenomic databases

eggNOGiarCOG04050, Archaea
HOGENOMiCLU_032444_0_0_2
InParanoidiQ58839
OMAiCDYLDPI
OrthoDBi41214at2157
PhylomeDBiQ58839

Enzyme and pathway databases

BioCyciMJAN243232:G1GKE-1566-MONOMER
BRENDAi3.1.99.B1, 3260

Miscellaneous databases

EvolutionaryTraceiQ58839

Family and domain databases

HAMAPiMF_00614, Fen, 1 hit
InterProiView protein in InterPro
IPR036279, 5-3_exonuclease_C_sf
IPR023426, Flap_endonuc
IPR019973, Flap_structure-sp_endonuc_arc
IPR008918, HhH2
IPR029060, PIN-like_dom_sf
IPR006086, XPG-I_dom
IPR006084, XPG/Rad2
IPR006085, XPG_DNA_repair_N
PANTHERiPTHR11081, PTHR11081, 1 hit
PfamiView protein in Pfam
PF00867, XPG_I, 1 hit
PF00752, XPG_N, 1 hit
PRINTSiPR00853, XPGRADSUPER
SMARTiView protein in SMART
SM00279, HhH2, 1 hit
SM00484, XPGI, 1 hit
SM00485, XPGN, 1 hit
SUPFAMiSSF47807, SSF47807, 1 hit
SSF88723, SSF88723, 1 hit
TIGRFAMsiTIGR03674, fen_arch, 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 nameiFEN_METJA
<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: Q58839
<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: December 5, 2001
Last sequence update: November 1, 1996
Last modified: June 2, 2021
This is version 131 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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