Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Entry version 55 (12 Aug 2020)
Sequence version 2 (26 Jun 2013)
Previous versions | rss
Add a publicationFeedback
Protein

DNA topoisomerase

Gene

TOP3A

Organism
Anolis carolinensis (Green anole) (American chameleon)
Status
Unreviewed-Annotation 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>
-Protein inferred from homologyi <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

Introduces a single-strand break via transesterification at a target site in duplex DNA. Releases the supercoiling and torsional tension of DNA introduced during the DNA replication and transcription by transiently cleaving and rejoining one strand of the DNA duplex. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA-(5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand.UniRule annotation

<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

  • ATP-independent breakage of single-stranded DNA, followed by passage and rejoining.UniRule annotationARBA annotation EC:5.6.2.1

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

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionDNA-bindingUniRule annotationARBA annotation, Isomerase, TopoisomeraseUniRule annotationARBA annotation
LigandMetal-binding, Zinc

<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 topoisomeraseUniRule annotation (EC:5.6.2.1UniRule 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:TOP3AImported
<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>OrganismiAnolis carolinensis (Green anole) (American chameleon)Imported
<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 identifieri28377 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiLepidosauriaSquamataBifurcataUnidentataEpisquamataToxicoferaIguaniaDactyloidaeAnolis
<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
  • UP000001646 <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: Unplaced

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

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

<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

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSACAG00000009174, Expressed in embryonic post-anal tail and 13 other tissues

<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

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
28377.ENSACAP00000009102

<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>Domaini39 – 183ToprimInterPro annotationAdd BLAST145

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>Regioni404 – 427DisorderedSequence analysisAdd BLAST24
Regioni779 – 806DisorderedSequence analysisAdd BLAST28
Regioni867 – 890DisorderedSequence analysisAdd BLAST24
Regioni941 – 997DisorderedSequence analysisAdd BLAST57

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi941 – 956PolarSequence analysisAdd BLAST16
Compositional biasi957 – 971PolyampholyteSequence analysisAdd BLAST15

<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 type IA topoisomerase family.UniRule annotationARBA annotation

Keywords - Domaini

Zinc-fingerARBA annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1956, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000156701

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_002929_1_2_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
H9GF12

Database of Orthologous Groups

More...
OrthoDBi
373433at2759

TreeFam database of animal gene trees

More...
TreeFami
TF105287

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00186, TOP1Ac, 1 hit
cd03362, TOPRIM_TopoIA_TopoIII, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.290.10, 1 hit
1.10.460.10, 1 hit
2.70.20.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000380, Topo_IA
IPR003601, Topo_IA_2
IPR023406, Topo_IA_AS
IPR013497, Topo_IA_cen
IPR013824, Topo_IA_cen_sub1
IPR013825, Topo_IA_cen_sub2
IPR013826, Topo_IA_cen_sub3
IPR023405, Topo_IA_core_domain
IPR003602, Topo_IA_DNA-bd_dom
IPR013498, Topo_IA_Znf
IPR006171, TOPRIM_domain
IPR034144, TOPRIM_TopoIII
IPR010666, Znf_GRF

The PANTHER Classification System

More...
PANTHERi
PTHR11390, PTHR11390, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01131, Topoisom_bac, 1 hit
PF01751, Toprim, 1 hit
PF01396, zf-C4_Topoisom, 1 hit
PF06839, zf-GRF, 2 hits

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00417, PRTPISMRASEI

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00437, TOP1Ac, 1 hit
SM00436, TOP1Bc, 1 hit
SM00493, TOPRIM, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF56712, SSF56712, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00396, TOPOISOMERASE_I_PROK, 1 hit
PS50880, TOPRIM, 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.

H9GF12-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MIPSSLLFVR RGVRLISRSW KRCFCQSAEG DMTFRNIQKV LCVAEKNDAA
60 70 80 90 100
RGIADILSNS RMRRREGFSK FNKIYECQYH LLGQNVTVVM TSVSGHLLAH
110 120 130 140 150
DFKLPFRKWH SCNPLVLFDA EIEKFCPENY LDIKRTLERE VQQCQALVIW
160 170 180 190 200
TDCDREGENI GFEVIDVCKA VKPSLQVFRA RFSEITPRAI KTACENLTQP
210 220 230 240 250
DQNVNDAVDV RQELDLRIGA AFTRFQTMRL QKIFPEVLAE QLISYGSCQF
260 270 280 290 300
PTLGFVVERF KAIQAFVAET FYKIKVTHDH EEGTVDFSWK RNRLFNHTAC
310 320 330 340 350
LILYQMCMED PLATVVEVGS RPKSKWRPLP LDTVELEKLA SRKLKINAKE
360 370 380 390 400
TMKIAEKLYT QGYISYPRTE TNIFPKDLNL PNLVQLQTLD PRWGAFAQRI
410 420 430 440 450
LDQGGPTPRS GTKSDQAHPP IHPTKHATNL QGNDQRLYEF IVRHFLACCS
460 470 480 490 500
QDAKGQETTV EIDVANERFV AHGLMILARN YLEVYPYEKW SDKVIPVYEK
510 520 530 540 550
GSRFQPSTVE MVEGETSPPQ LLTEADLISL MEKHGIGTDA THAEHIETIK
560 570 580 590 600
SRMYVGLTPD QRFVPGELGM GLVEGYDSMG YEMSKPDLRA ELEHDLKLIC
610 620 630 640 650
EGKKGKAVVL REQVQKYKRV FIEAVQKAKK LDEALAQYFG QGAPLTQEEE
660 670 680 690 700
IYPALPDPVR KCPQCNSDMV LKTKKSGGFY LSCLGYPSCK SAVWFPDSVL
710 720 730 740 750
EVSKDDSVCD VCRPHPVHRL KLKFKRGGLP PMMPLEFVGC IGGCDETLRE
760 770 780 790 800
VLDLRYLQGP PRPASQPANR LVSPLQANHS LNHMTGNSNN HQGVSAPPSR
810 820 830 840 850
PNRTAASEDN NAVVCNCGEE ALFLTVRKEG PNQGRQFYKC RSGGCGFFLW
860 870 880 890 900
ADQQPDSAVS NVPSGFGPFD PSQRGERGAA RSWSEGGGGG GTAVCKCGQP
910 920 930 940 950
AITRTVQREG ANKGRQFHTC AKPREQQCGF FQWTDENVVP GFPSSHFTGE
960 970 980 990
GTTRGLGTKT KRSDSDPGLR APTTKRSRTC GVCHQPGHTR KTCPQNR
Length:997
Mass (Da):112,004
Last modified:June 26, 2013 - 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:i590DFBE1FF951B3E
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
AAWZ02031062 Genomic DNA No translation available.

NCBI Reference Sequences

More...
RefSeqi
XP_008120111.1, XM_008121904.2

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSACAT00000009295; ENSACAP00000009102; ENSACAG00000009174

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
100551633

<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
AAWZ02031062 Genomic DNA No translation available.
RefSeqiXP_008120111.1, XM_008121904.2

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

STRINGi28377.ENSACAP00000009102

Genome annotation databases

EnsembliENSACAT00000009295; ENSACAP00000009102; ENSACAG00000009174
GeneIDi100551633

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
7156

Phylogenomic databases

eggNOGiKOG1956, Eukaryota
GeneTreeiENSGT00940000156701
HOGENOMiCLU_002929_1_2_1
InParanoidiH9GF12
OrthoDBi373433at2759
TreeFamiTF105287

Gene expression databases

BgeeiENSACAG00000009174, Expressed in embryonic post-anal tail and 13 other tissues

Family and domain databases

CDDicd00186, TOP1Ac, 1 hit
cd03362, TOPRIM_TopoIA_TopoIII, 1 hit
Gene3Di1.10.290.10, 1 hit
1.10.460.10, 1 hit
2.70.20.10, 1 hit
InterProiView protein in InterPro
IPR000380, Topo_IA
IPR003601, Topo_IA_2
IPR023406, Topo_IA_AS
IPR013497, Topo_IA_cen
IPR013824, Topo_IA_cen_sub1
IPR013825, Topo_IA_cen_sub2
IPR013826, Topo_IA_cen_sub3
IPR023405, Topo_IA_core_domain
IPR003602, Topo_IA_DNA-bd_dom
IPR013498, Topo_IA_Znf
IPR006171, TOPRIM_domain
IPR034144, TOPRIM_TopoIII
IPR010666, Znf_GRF
PANTHERiPTHR11390, PTHR11390, 1 hit
PfamiView protein in Pfam
PF01131, Topoisom_bac, 1 hit
PF01751, Toprim, 1 hit
PF01396, zf-C4_Topoisom, 1 hit
PF06839, zf-GRF, 2 hits
PRINTSiPR00417, PRTPISMRASEI
SMARTiView protein in SMART
SM00437, TOP1Ac, 1 hit
SM00436, TOP1Bc, 1 hit
SM00493, TOPRIM, 1 hit
SUPFAMiSSF56712, SSF56712, 1 hit
PROSITEiView protein in PROSITE
PS00396, TOPOISOMERASE_I_PROK, 1 hit
PS50880, TOPRIM, 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 nameiH9GF12_ANOCA
<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: H9GF12
<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/TrEMBL: May 16, 2012
Last sequence update: June 26, 2013
Last modified: August 12, 2020
This is version 55 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 statusiUnreviewed (UniProtKB/TrEMBL)

<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

Reference proteomeImported
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