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Entry version 80 (26 Feb 2020)
Sequence version 1 (28 Jul 2009)
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Protein

DNA gyrase subunit B

Gene

gyrB

Organism
Micrococcus luteus (strain ATCC 4698 / DSM 20030 / JCM 1464 / NBRC 3333 / NCIMB 9278 / NCTC 2665 / VKM Ac-2230) (Micrococcus lysodeikticus)
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

A type II topoisomerase that negatively supercoils DNA in an ATP-dependent manner (PubMed:276855). About 140 bp of DNA wraps around gyrase in the presence or absence of ATP, when ATP is added negative supercoils are made (PubMed:153201).2 Publications
A type II topoisomerase that negatively supercoils closed circular double-stranded (ds) DNA in an ATP-dependent manner to modulate DNA topology and maintain chromosomes in an underwound state. Negative supercoiling favors strand separation, and DNA replication, transcription, recombination and repair, all of which involve strand separation. Also able to catalyze the interconversion of other topological isomers of dsDNA rings, including catenanes and knotted rings. Type II topoisomerases break and join 2 DNA strands simultaneously in an ATP-dependent manner.UniRule annotation

Miscellaneous

Few gyrases are as efficient as E.coli at forming negative supercoils. Not all organisms have 2 type II topoisomerases; in organisms with a single type II topoisomerase this enzyme also has to decatenate newly replicated chromosomes.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

<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 annotation1 Publication, Mn2+UniRule annotation, Ca2+UniRule annotationNote: Binds two Mg2+ per subunit. The magnesium ions form salt bridges with both the protein and the DNA. Can also accept other divalent metal cations, such as Mn2+ or Ca2+.UniRule annotation

<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

Supercoiling activity inhibited by novobiocin and coumermycin, DNA wrapping around gyrase is not inhibited (PubMed:153201, PubMed:276855).2 Publications

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 bindingi504Magnesium 1; catalyticUniRule annotation1
Metal bindingi577Magnesium 1; catalyticUniRule annotation1
Metal bindingi577Magnesium 2UniRule annotation1
Metal bindingi579Magnesium 2UniRule annotation1

<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-binding, Isomerase, Topoisomerase
LigandATP-binding, Magnesium, Metal-binding, Nucleotide-binding

<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 gyrase subunit BUniRule annotation (EC:5.6.2.2UniRule annotation2 Publications)
<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:gyrBUniRule annotation
Ordered Locus Names:Mlut_00050
<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>OrganismiMicrococcus luteus (strain ATCC 4698 / DSM 20030 / JCM 1464 / NBRC 3333 / NCIMB 9278 / NCTC 2665 / VKM Ac-2230) (Micrococcus lysodeikticus)
<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 identifieri465515 [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 lineageiBacteriaActinobacteriaMicrococcalesMicrococcaceaeMicrococcus
<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
  • UP000000738 <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 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

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004355421 – 720DNA gyrase subunit BAdd BLAST720

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
C5C7X8

<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

Heterotetramer, composed of two GyrA and two GyrB chains (PubMed:153201, PubMed:276855). In the heterotetramer, GyrA contains the active site tyrosine that forms a transient covalent intermediate with the DNA, while GyrB binds cofactors and catalyzes ATP hydrolysis.

UniRule annotation2 Publications

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei529Interaction with DNAUniRule annotation1
Sitei532Interaction with DNAUniRule annotation1

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
465515.Mlut_00050

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

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

More...
SMRi
C5C7X8

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

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>Domaini498 – 612ToprimUniRule annotationAdd BLAST115

<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 II topoisomerase GyrB family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105C7D Bacteria
COG0187 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_006146_4_1_11

KEGG Orthology (KO)

More...
KOi
K02470

Identification of Orthologs from Complete Genome Data

More...
OMAi
LWETTMH

Family and domain databases

Conserved Domains Database

More...
CDDi
cd03366 TOPRIM_TopoIIA_GyrB, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.230.10, 1 hit
3.30.565.10, 1 hit
3.40.50.670, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_01898 GyrB, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR002288 DNA_gyrase_B_C
IPR011557 GyrB
IPR003594 HATPase_C
IPR036890 HATPase_C_sf
IPR020568 Ribosomal_S5_D2-typ_fold
IPR014721 Ribosomal_S5_D2-typ_fold_subgr
IPR001241 Topo_IIA
IPR013760 Topo_IIA-like_dom_sf
IPR013759 Topo_IIA_B_C
IPR013506 Topo_IIA_bsu_dom2
IPR018522 TopoIIA_CS
IPR006171 TOPRIM_domain
IPR034160 TOPRIM_GyrB

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00204 DNA_gyraseB, 1 hit
PF00986 DNA_gyraseB_C, 1 hit
PF02518 HATPase_c, 1 hit
PF01751 Toprim, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00387 HATPase_c, 1 hit
SM00433 TOP2c, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF54211 SSF54211, 1 hit
SSF55874 SSF55874, 1 hit
SSF56719 SSF56719, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01059 gyrB, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00177 TOPOISOMERASE_II, 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.

C5C7X8-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MVDAMPENPA EEPTAASAAP NPEAVPDAVG QPEAPVKDRK VPGEYGASAI
60 70 80 90 100
TVLEGLEAVR KRPGMYIGST GPRGLHHLVY EVVDNSVDEA LAGYATGIDV
110 120 130 140 150
TLQADGGVRV ADDGRGIPVD LHPTEGRPTV EVVMTILHAG GKFGGGGYAV
160 170 180 190 200
SGGLHGVGIS VVNALSRRVD TEVRRQGHVW RMSFADGGVP QGELVKGEAT
210 220 230 240 250
DATGTVQTFY PDAEIFDSIE FDYETLRARF QQMAFLNKGL RITLTDERVQ
260 270 280 290 300
ESNEVVDDEI AGEGAAGEDV AENGLAEDAE QEPQRRSVTY LYENGLLDYV
310 320 330 340 350
QHLNSAKKVE YVHDDVIAFE AEDFSDGRSM AVEVAMQWTS AYSESVHTYA
360 370 380 390 400
NTINTHEGGT HEEGFRAALT SLVNRYAREK EILKPKEDNL SGEDIREGLT
410 420 430 440 450
AVISVKLSEP QFEGQTKTKL GNSEARGFVS KAVTDHLGDW FERNPGPAKE
460 470 480 490 500
IIRKAIMASH ARLAARKARD NARRKSPLES FGMPGKLADC SSKDPERCEV
510 520 530 540 550
YIVEGDSAGG SAKQGRNPET QAILPLRGKI LNVERARLDK ALGNAEIQSM
560 570 580 590 600
ITAFGTNIGE EFDISKLRYH KIVLMADADV DGQHITTLLL TVLFRYMRPL
610 620 630 640 650
IEAGHVFLAQ PPLYRIKWSN APHDYVFSDE ERDAAVEAGL AKGWRYPKDN
660 670 680 690 700
GVQRYKGLGE MNYQELWDTT MDPEHRTLLQ VTMEDAAAAD AVFSMLMGED
710 720
VESRRTFIQQ NAKDIRFLDV
Length:720
Mass (Da):78,896
Last modified:July 28, 2009 - 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:i511E5C669610CBA7
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
CP001628 Genomic DNA Translation: ACS29580.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
ACS29580; ACS29580; Mlut_00050

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mlu:Mlut_00050

<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
CP001628 Genomic DNA Translation: ACS29580.1

3D structure databases

SMRiC5C7X8
ModBaseiSearch...

Protein-protein interaction databases

STRINGi465515.Mlut_00050

Proteomic databases

PRIDEiC5C7X8

Genome annotation databases

EnsemblBacteriaiACS29580; ACS29580; Mlut_00050
KEGGimlu:Mlut_00050

Phylogenomic databases

eggNOGiENOG4105C7D Bacteria
COG0187 LUCA
HOGENOMiCLU_006146_4_1_11
KOiK02470
OMAiLWETTMH

Family and domain databases

CDDicd03366 TOPRIM_TopoIIA_GyrB, 1 hit
Gene3Di3.30.230.10, 1 hit
3.30.565.10, 1 hit
3.40.50.670, 1 hit
HAMAPiMF_01898 GyrB, 1 hit
InterProiView protein in InterPro
IPR002288 DNA_gyrase_B_C
IPR011557 GyrB
IPR003594 HATPase_C
IPR036890 HATPase_C_sf
IPR020568 Ribosomal_S5_D2-typ_fold
IPR014721 Ribosomal_S5_D2-typ_fold_subgr
IPR001241 Topo_IIA
IPR013760 Topo_IIA-like_dom_sf
IPR013759 Topo_IIA_B_C
IPR013506 Topo_IIA_bsu_dom2
IPR018522 TopoIIA_CS
IPR006171 TOPRIM_domain
IPR034160 TOPRIM_GyrB
PfamiView protein in Pfam
PF00204 DNA_gyraseB, 1 hit
PF00986 DNA_gyraseB_C, 1 hit
PF02518 HATPase_c, 1 hit
PF01751 Toprim, 1 hit
SMARTiView protein in SMART
SM00387 HATPase_c, 1 hit
SM00433 TOP2c, 1 hit
SUPFAMiSSF54211 SSF54211, 1 hit
SSF55874 SSF55874, 1 hit
SSF56719 SSF56719, 1 hit
TIGRFAMsiTIGR01059 gyrB, 1 hit
PROSITEiView protein in PROSITE
PS00177 TOPOISOMERASE_II, 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 nameiGYRB_MICLC
<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: C5C7X8
<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: February 17, 2016
Last sequence update: July 28, 2009
Last modified: February 26, 2020
This is version 80 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

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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