(data stored in ACNUC7421 zone)

SWISSPROT: D6XV00_BACIE

ID   D6XV00_BACIE            Unreviewed;       637 AA.
AC   D6XV00;
DT   10-AUG-2010, integrated into UniProtKB/TrEMBL.
DT   10-AUG-2010, sequence version 1.
DT   08-MAY-2019, entry version 77.
DE   RecName: Full=DNA gyrase subunit B {ECO:0000256|HAMAP-Rule:MF_01898};
DE            EC=5.6.2.3 {ECO:0000256|HAMAP-Rule:MF_01898};
GN   Name=gyrB {ECO:0000256|HAMAP-Rule:MF_01898};
GN   OrderedLocusNames=Bsel_0006 {ECO:0000313|EMBL:ADH97558.1};
OS   Bacillus selenitireducens (strain ATCC 700615 / DSM 15326 / MLS10).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Sporolactobacillaceae;
OC   unclassified Sporolactobacillaceae.
OX   NCBI_TaxID=439292 {ECO:0000313|EMBL:ADH97558.1, ECO:0000313|Proteomes:UP000000271};
RN   [1] {ECO:0000313|EMBL:ADH97558.1, ECO:0000313|Proteomes:UP000000271}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700615 / DSM 15326 / MLS10
RC   {ECO:0000313|Proteomes:UP000000271};
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E.,
RA   Tice H., Bruce D., Goodwin L., Pitluck S., Sims D., Brettin T.,
RA   Detter J.C., Han C., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Ovchinnikova G., Stolz J.;
RT   "Complete sequence of Bacillus selenitireducens MLS10.";
RL   Submitted (OCT-2009) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: A type II topoisomerase that negatively supercoils
CC       closed circular double-stranded (ds) DNA in an ATP-dependent
CC       manner to modulate DNA topology and maintain chromosomes in an
CC       underwound state. Negative supercoiling favors strand separation,
CC       and DNA replication, transcription, recombination and repair, all
CC       of which involve strand separation. Also able to catalyze the
CC       interconversion of other topological isomers of dsDNA rings,
CC       including catenanes and knotted rings. Type II topoisomerases
CC       break and join 2 DNA strands simultaneously in an ATP-dependent
CC       manner. {ECO:0000256|HAMAP-Rule:MF_01898}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP-dependent breakage, passage and rejoining of double-
CC         stranded DNA.; EC=5.6.2.3; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_01898, ECO:0000256|SAAS:SAAS01180974};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000256|SAAS:SAAS00924966};
CC   -!- COFACTOR:
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000256|SAAS:SAAS00888357};
CC   -!- SUBUNIT: Heterotetramer, composed of two GyrA and two GyrB chains.
CC       In the heterotetramer, GyrA contains the active site tyrosine that
CC       forms a transient covalent intermediate with DNA, while GyrB binds
CC       cofactors and catalyzes ATP hydrolysis. {ECO:0000256|HAMAP-
CC       Rule:MF_01898}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01898}.
CC   -!- MISCELLANEOUS: Few gyrases are as efficient as E.coli at forming
CC       negative supercoils. Not all organisms have 2 type II
CC       topoisomerases; in organisms with a single type II topoisomerase
CC       this enzyme also has to decatenate newly replicated chromosomes.
CC       {ECO:0000256|HAMAP-Rule:MF_01898}.
CC   -!- SIMILARITY: Belongs to the type II topoisomerase family.
CC       {ECO:0000256|HAMAP-Rule:MF_01898}.
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DR   EMBL; CP001791; ADH97558.1; -; Genomic_DNA.
DR   RefSeq; WP_013170988.1; NC_014219.1.
DR   STRING; 439292.Bsel_0006; -.
DR   EnsemblBacteria; ADH97558; ADH97558; Bsel_0006.
DR   KEGG; bse:Bsel_0006; -.
DR   eggNOG; ENOG4105C7D; Bacteria.
DR   eggNOG; COG0187; LUCA.
DR   HOGENOM; HOG000075156; -.
DR   KO; K02470; -.
DR   OMA; IYIACPP; -.
DR   OrthoDB; 205481at2; -.
DR   BioCyc; BSEL439292:G1GLR-6-MONOMER; -.
DR   Proteomes; UP000000271; Chromosome.
DR   GO; GO:0005694; C:chromosome; IEA:InterPro.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003918; F:DNA topoisomerase type II (ATP-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006265; P:DNA topological change; IEA:UniProtKB-UniRule.
DR   GO; GO:0006261; P:DNA-dependent DNA replication; IEA:UniProtKB-UniRule.
DR   CDD; cd00075; HATPase_c; 1.
DR   CDD; cd03366; TOPRIM_TopoIIA_GyrB; 1.
DR   Gene3D; 3.30.230.10; -; 1.
DR   Gene3D; 3.30.565.10; -; 1.
DR   Gene3D; 3.40.50.670; -; 1.
DR   HAMAP; MF_01898; GyrB; 1.
DR   InterPro; IPR002288; DNA_gyrase_B_C.
DR   InterPro; IPR011557; GyrB.
DR   InterPro; IPR003594; HATPase_C.
DR   InterPro; IPR036890; HATPase_C_sf.
DR   InterPro; IPR020568; Ribosomal_S5_D2-typ_fold.
DR   InterPro; IPR014721; Ribosomal_S5_D2-typ_fold_subgr.
DR   InterPro; IPR001241; Topo_IIA.
DR   InterPro; IPR013760; Topo_IIA-like_dom_sf.
DR   InterPro; IPR013759; Topo_IIA_B_C.
DR   InterPro; IPR013506; Topo_IIA_bsu_dom2.
DR   InterPro; IPR018522; TopoIIA_CS.
DR   InterPro; IPR006171; TOPRIM_domain.
DR   InterPro; IPR034160; TOPRIM_GyrB.
DR   Pfam; PF00204; DNA_gyraseB; 1.
DR   Pfam; PF00986; DNA_gyraseB_C; 1.
DR   Pfam; PF02518; HATPase_c; 1.
DR   Pfam; PF01751; Toprim; 1.
DR   SMART; SM00387; HATPase_c; 1.
DR   SMART; SM00433; TOP2c; 1.
DR   SUPFAM; SSF54211; SSF54211; 1.
DR   SUPFAM; SSF55874; SSF55874; 1.
DR   SUPFAM; SSF56719; SSF56719; 1.
DR   TIGRFAMs; TIGR01059; gyrB; 1.
DR   PROSITE; PS00177; TOPOISOMERASE_II; 1.
DR   PROSITE; PS50880; TOPRIM; 1.
PE   3: Inferred from homology;
DR   PRODOM; D6XV00.
DR   SWISS-2DPAGE; D6XV00.
KW   ATP-binding {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924926}; Coiled coil {ECO:0000256|SAM:Coils};
KW   Complete proteome {ECO:0000313|Proteomes:UP000000271};
KW   Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01898};
KW   DNA-binding {ECO:0000256|SAAS:SAAS00888349};
KW   Isomerase {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924998, ECO:0000313|EMBL:ADH97558.1};
KW   Magnesium {ECO:0000256|SAAS:SAAS00906748};
KW   Metal-binding {ECO:0000256|SAAS:SAAS00906804};
KW   Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924952};
KW   Reference proteome {ECO:0000313|Proteomes:UP000000271};
KW   Topoisomerase {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924964}.
FT   DOMAIN      421    535       Toprim. {ECO:0000259|PROSITE:PS50880}.
FT   COILED      384    404       {ECO:0000256|SAM:Coils}.
SQ   SEQUENCE   637 AA;  71065 MW;  0F014200CC42209A CRC64;
     MSLDQQSYDE SQIQVLEGLE AVRKRPGMYI GSTNERGLHH LVWEIVDNSI DEAMAGHCSH
     IWVTIEEDNT ITVEDDGRGI PVGIHEKMGR PAVEVIMTVL HAGGKFGGGG YKVSGGLHGV
     GASVVNALSS FLEVEVHKEG EVHYISFERG AVKEELNVIG STEKTGTLIR FKADNMIFTE
     TTVYDFDVLA NRLRELSFLN KGLTIEITDK REEDKSAKYF YEGGISSFVE HLNRTKTALH
     EPPIFIESEK EGIQVEVAMQ YNDSFASNLY SFANNINTHE GGTHESGFKT ALTRVINDYA
     RKNGLFKEND PNLIGDDVRE GLTAIVSVKI ENPQFEGQTK TKLGNSEART ITDSLFTEHM
     AKFMAENPTV ARQIVEKGIM ASRARDAAKK ARELTRRKSA LEVSSLPGKL ADCSTKDASI
     SEIYVVEGDS AGGSAKQGRD RHFQAILPLR GKIINVEKAR LDKILANNEI RAIITALGTG
     IGEEFDITKA RYHKIIIMTD ADVDGAHIRT LLLTFLYRYM RPLIEEGYIY IAQPPLYQIK
     QGKAVHYAFN EKEMERILGE LSASPKPGLQ RYKGLGEMNP TQLWETTMDP ATRTLLQVSL
     KDAMLADEVF ETLMGDRVEP RRDFIQENAH YVKNLDI
//

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