ID   TOP6B_PYRAE             Reviewed;         527 AA.
AC   Q8ZVM0;
DT   12-FEB-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   03-AUG-2022, entry version 111.
DE   RecName: Full=Type 2 DNA topoisomerase 6 subunit B {ECO:0000255|HAMAP-Rule:MF_00322};
DE            EC=5.6.2.2 {ECO:0000255|HAMAP-Rule:MF_00322};
DE   AltName: Full=Type II DNA topoisomerase VI subunit B {ECO:0000255|HAMAP-Rule:MF_00322};
DE            Short=TopoVI-B {ECO:0000255|HAMAP-Rule:MF_00322};
GN   Name=top6B {ECO:0000255|HAMAP-Rule:MF_00322}; OrderedLocusNames=PAE2217;
OS   Pyrobaculum aerophilum (strain ATCC 51768 / DSM 7523 / JCM 9630 / CIP
OS   104966 / NBRC 100827 / IM2).
OC   Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC   Pyrobaculum.
OX   NCBI_TaxID=178306;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51768 / DSM 7523 / JCM 9630 / CIP 104966 / NBRC 100827 / IM2;
RX   PubMed=11792869; DOI=10.1073/pnas.241636498;
RA   Fitz-Gibbon S.T., Ladner H., Kim U.-J., Stetter K.O., Simon M.I.,
RA   Miller J.H.;
RT   "Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum
RT   aerophilum.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:984-989(2002).
CC   -!- FUNCTION: Relaxes both positive and negative superturns and exhibits a
CC       strong decatenase activity. {ECO:0000255|HAMAP-Rule:MF_00322}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP-dependent breakage, passage and rejoining of double-
CC         stranded DNA.; EC=5.6.2.2; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00322};
CC   -!- SUBUNIT: Homodimer. Heterotetramer of two Top6A and two Top6B chains.
CC       {ECO:0000255|HAMAP-Rule:MF_00322}.
CC   -!- SIMILARITY: Belongs to the TOP6B family. {ECO:0000255|HAMAP-
CC       Rule:MF_00322}.
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DR   EMBL; AE009441; AAL64036.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8ZVM0; -.
DR   SMR; Q8ZVM0; -.
DR   STRING; 178306.PAE2217; -.
DR   PRIDE; Q8ZVM0; -.
DR   EnsemblBacteria; AAL64036; AAL64036; PAE2217.
DR   KEGG; pai:PAE2217; -.
DR   PATRIC; fig|178306.9.peg.1648; -.
DR   eggNOG; arCOG01165; Archaea.
DR   HOGENOM; CLU_006403_0_0_2; -.
DR   InParanoid; Q8ZVM0; -.
DR   OMA; TRIELEM; -.
DR   Proteomes; UP000002439; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0015935; C:small ribosomal subunit; IBA:GO_Central.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003918; F:DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006265; P:DNA topological change; IEA:UniProtKB-UniRule.
DR   GO; GO:0006268; P:DNA unwinding involved in DNA replication; IEA:UniProtKB-UniRule.
DR   CDD; cd00823; TopoIIB_Trans; 1.
DR   Gene3D; 3.30.230.10; -; 1.
DR   Gene3D; 3.30.565.10; -; 1.
DR   HAMAP; MF_00322; Top6B; 1.
DR   InterPro; IPR003594; HATPase_C.
DR   InterPro; IPR036890; HATPase_C_sf.
DR   InterPro; IPR010979; Ribosomal_S13-like_H2TH.
DR   InterPro; IPR020568; Ribosomal_S5_D2-typ_fold.
DR   InterPro; IPR014721; Ribosomal_S5_D2-typ_fold_subgr.
DR   InterPro; IPR005734; TopoVI_B.
DR   InterPro; IPR015320; TopoVI_B_transducer.
DR   PANTHER; PTHR10871:SF4; PTHR10871:SF4; 1.
DR   Pfam; PF02518; HATPase_c; 1.
DR   Pfam; PF09239; Topo-VIb_trans; 1.
DR   PIRSF; PIRSF006553; TopoVI_B; 1.
DR   SUPFAM; SSF46946; SSF46946; 1.
DR   SUPFAM; SSF54211; SSF54211; 1.
DR   SUPFAM; SSF55874; SSF55874; 1.
DR   TIGRFAMs; TIGR01052; top6b; 1.
PE   3: Inferred from homology;
KW   ATP-binding; DNA-binding; Isomerase; Nucleotide-binding;
KW   Reference proteome; Topoisomerase.
FT   CHAIN           1..527
FT                   /note="Type 2 DNA topoisomerase 6 subunit B"
FT                   /id="PRO_0000145466"
FT   BINDING         39
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00322"
FT   BINDING         73
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00322"
FT   BINDING         94..95
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00322"
FT   BINDING         103..110
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00322"
FT   BINDING         421
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00322"
SQ   SEQUENCE   527 AA;  59870 MW;  7BAADB81F8FC9D97 CRC64;
     MYAYEALPVA EWFRRNRELA GFHNPTRALY QTIRELTENS LDATETYGIL PTIYLRVNIE
     DEQKGWVSVY AEDNGIGIPG NEIPNVFGRV FYSSKYKIKQ HRGVFGLGLK MVVLYSQSTT
     NKPVLVRSAT LKSDKIYEYQ IMIDTNSNSP IILDRREYPN RYKWHGTAVK VYLEGNWLAA
     KKRIEDYLKR TAIIAPYAEI VFKGPDLELW LKRRTTKLPP APKEGLPHPK SVDVDTLKQM
     IQESRGLTLL EFLMENFDAV GEGTAKAFLE WAGFNPNAKV TALTPEELVK LVDKMKQYEG
     WRRPRSDWLS PAGAELLEIG AKAILGAEAV FAITRKPESY GGHPFIVEAA VAWGGQIPPA
     DKPLLLRYAN KIPLLYDEGA DVARKVVDEF NWQNYKVKFP APLAVIIHVC STKIPYASAG
     KEAIAEVPEI EKEMKLALRD AAKKLRLYLS RKEKEMEMLN KYISLAKYVE EIAYNLSMIT
     RIEKESLAKN LHTLIERKIG LTIEELVKHT LSMSSTSQEE VVEATPQ