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Q63GK5

- TOP3_BACCZ

UniProt

Q63GK5 - TOP3_BACCZ

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Protein

DNA topoisomerase 3

Gene

topB

Organism
Bacillus cereus (strain ZK / E33L)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi

Functioni

Releases the supercoiling and torsional tension of DNA, which is introduced during the DNA replication and transcription, by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. 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. The free DNA strand then undergoes passage around the unbroken strand, thus removing DNA supercoils. Finally, in the religation step, the DNA 3'-OH attacks the covalent intermediate to expel the active-site tyrosine and restore the DNA phosphodiester backbone.UniRule annotation

Catalytic activityi

ATP-independent breakage of single-stranded DNA, followed by passage and rejoining.UniRule annotation

Cofactori

Magnesium.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi9 – 91Magnesium; catalyticUniRule annotation
Sitei61 – 611Interaction with DNAUniRule annotation
Metal bindingi105 – 1051Magnesium; catalyticUniRule annotation
Sitei168 – 1681Interaction with DNAUniRule annotation
Sitei176 – 1761Interaction with DNAUniRule annotation
Active sitei310 – 3101O-(5'-phospho-DNA)-tyrosine intermediateUniRule annotation
Sitei312 – 3121Interaction with DNAUniRule annotation

GO - Molecular functioni

  1. DNA binding Source: UniProtKB-KW
  2. DNA topoisomerase type I activity Source: UniProtKB-HAMAP
  3. magnesium ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. DNA topological change Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Isomerase, Topoisomerase

Keywords - Ligandi

DNA-binding, Magnesium, Metal-binding

Enzyme and pathway databases

BioCyciBCER288681:GHG7-395-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
DNA topoisomerase 3UniRule annotation (EC:5.99.1.2UniRule annotation)
Alternative name(s):
DNA topoisomerase IIIUniRule annotation
Gene namesi
Name:topBUniRule annotation
Ordered Locus Names:BCE33L0347
OrganismiBacillus cereus (strain ZK / E33L)
Taxonomic identifieri288681 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillusBacillus cereus group
ProteomesiUP000002612: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 729729DNA topoisomerase 3PRO_0000286362Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi288681.BCZK0347.

Structurei

3D structure databases

ProteinModelPortaliQ63GK5.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini3 – 136134ToprimUniRule annotationAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni187 – 1926Interaction with DNAUniRule annotation

Sequence similaritiesi

Belongs to the type IA topoisomerase family.UniRule annotation
Contains 1 Toprim domain.UniRule annotation

Phylogenomic databases

eggNOGiCOG0551.
KOiK03169.
OMAiTKHDEYF.
OrthoDBiEOG60CWM6.

Family and domain databases

Gene3Di1.10.460.10. 2 hits.
2.70.20.10. 2 hits.
3.40.50.140. 1 hit.
HAMAPiMF_00953. Topoisom_3_prok.
InterProiIPR000380. Topo_IA.
IPR003601. Topo_IA_2.
IPR023406. Topo_IA_AS.
IPR013497. Topo_IA_cen.
IPR013824. Topo_IA_cen_sub1.
IPR013825. Topo_IA_cen_sub2.
IPR023405. Topo_IA_core_domain.
IPR003602. Topo_IA_DNA-bd_dom.
IPR005738. TopoIII.
IPR006171. Toprim_domain.
[Graphical view]
PANTHERiPTHR11390. PTHR11390. 1 hit.
PfamiPF01131. Topoisom_bac. 1 hit.
PF01751. Toprim. 1 hit.
[Graphical view]
PRINTSiPR00417. PRTPISMRASEI.
SMARTiSM00437. TOP1Ac. 1 hit.
SM00436. TOP1Bc. 1 hit.
SM00493. TOPRIM. 1 hit.
[Graphical view]
SUPFAMiSSF56712. SSF56712. 1 hit.
TIGRFAMsiTIGR01056. topB. 1 hit.
PROSITEiPS00396. TOPOISOMERASE_I_PROK. 1 hit.
PS50880. TOPRIM. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q63GK5-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MAKSVVIAEK PSVARDIARV LKCDKKGNGY LEGSKYIVTW ALGHLVTLAD
60 70 80 90 100
PESYDVKYKK WNLEDLPMLP ERLKLTVIKQ TGKQFNAVKS QLLRKDVNEI
110 120 130 140 150
IVATDAGREG ELVARWIIDK VRINKPIKRL WISSVTDKAI KDGFANLKPG
160 170 180 190 200
KAYDNLYASA VARSEADWYI GLNATRALTT RFNAQLNCGR VQTPTVAMIA
210 220 230 240 250
NREDEIKNFK AQTYYGIEAQ TTNQLKLTWQ DANGNSRSFN KEKIDGIVKG
260 270 280 290 300
LDKHNATVLE IDKKQKKSFS PGLYDLTELQ RDANKKFGYS AKETLNIMQK
310 320 330 340 350
LYEQHKVLTY PRTDSRYISS DIVGTLPERL KACGVGEYRP LAHKVLQKPI
360 370 380 390 400
KANKSFVDDS KVSDHHAIIP TEGYVNFSAF TDKERKIYDL VVKRFLAVLF
410 420 430 440 450
PAFEYEQLTL RTKIGNETFI ARGKTILHAG WKEVYENRFE DDDVTDEVKE
460 470 480 490 500
QLLPRIEKGD TLTVKLIMQT SGQTKAPARF NEATLLSAME NPTKYMDTQN
510 520 530 540 550
KQLADTLKST GGLGTVATRA DIIDKLFNSF LIEKRGKDIH ITSKGRQLLD
560 570 580 590 600
LVPEELKSPT LTGEWEQKLE AIAKGKLKKE VFISEMKNYT KEIVSEIKSS
610 620 630 640 650
DKKYKHDNIS TKSCPDCGKP MLEVNGKKGK MLVCQDRECG HRKNVSRTTN
660 670 680 690 700
ARCPQCKKKL ELRGEGAGQI FACKCGYREK LSTFQERRKK ESGNKADKRD
710 720
VQKYMKQQKK EEEPLNNPFA EALKKLKFD
Length:729
Mass (Da):82,840
Last modified:October 25, 2004 - v1
Checksum:iA7AD741BBD75CC1D
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000001 Genomic DNA. Translation: AAU19892.1.
RefSeqiWP_001140208.1. NC_006274.1.
YP_081956.1. NC_006274.1.

Genome annotation databases

EnsemblBacteriaiAAU19892; AAU19892; BCE33L0347.
GeneIDi3023182.
KEGGibcz:BCZK0347.
PATRICi18883976. VBIBacCer95304_0370.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000001 Genomic DNA. Translation: AAU19892.1 .
RefSeqi WP_001140208.1. NC_006274.1.
YP_081956.1. NC_006274.1.

3D structure databases

ProteinModelPortali Q63GK5.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 288681.BCZK0347.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAU19892 ; AAU19892 ; BCE33L0347 .
GeneIDi 3023182.
KEGGi bcz:BCZK0347.
PATRICi 18883976. VBIBacCer95304_0370.

Phylogenomic databases

eggNOGi COG0551.
KOi K03169.
OMAi TKHDEYF.
OrthoDBi EOG60CWM6.

Enzyme and pathway databases

BioCyci BCER288681:GHG7-395-MONOMER.

Family and domain databases

Gene3Di 1.10.460.10. 2 hits.
2.70.20.10. 2 hits.
3.40.50.140. 1 hit.
HAMAPi MF_00953. Topoisom_3_prok.
InterProi 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.
IPR023405. Topo_IA_core_domain.
IPR003602. Topo_IA_DNA-bd_dom.
IPR005738. TopoIII.
IPR006171. Toprim_domain.
[Graphical view ]
PANTHERi PTHR11390. PTHR11390. 1 hit.
Pfami PF01131. Topoisom_bac. 1 hit.
PF01751. Toprim. 1 hit.
[Graphical view ]
PRINTSi PR00417. PRTPISMRASEI.
SMARTi SM00437. TOP1Ac. 1 hit.
SM00436. TOP1Bc. 1 hit.
SM00493. TOPRIM. 1 hit.
[Graphical view ]
SUPFAMi SSF56712. SSF56712. 1 hit.
TIGRFAMsi TIGR01056. topB. 1 hit.
PROSITEi PS00396. TOPOISOMERASE_I_PROK. 1 hit.
PS50880. TOPRIM. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ZK / E33L.

Entry informationi

Entry nameiTOP3_BACCZ
AccessioniPrimary (citable) accession number: Q63GK5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 1, 2007
Last sequence update: October 25, 2004
Last modified: October 29, 2014
This is version 70 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3