(data stored in ACNUC7421 zone)

SWISSPROT: Q5LWU8_RUEPO

ID   Q5LWU8_RUEPO            Unreviewed;       805 AA.
AC   Q5LWU8;
DT   01-FEB-2005, integrated into UniProtKB/TrEMBL.
DT   01-FEB-2005, sequence version 1.
DT   08-MAY-2019, entry version 120.
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   ECO:0000313|EMBL:AAV93483.1};
GN   OrderedLocusNames=SPO0155 {ECO:0000313|EMBL:AAV93483.1};
OS   Ruegeria pomeroyi (strain ATCC 700808 / DSM 15171 / DSS-3)
OS   (Silicibacter pomeroyi).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Ruegeria.
OX   NCBI_TaxID=246200 {ECO:0000313|EMBL:AAV93483.1, ECO:0000313|Proteomes:UP000001023};
RN   [1] {ECO:0000313|EMBL:AAV93483.1, ECO:0000313|Proteomes:UP000001023}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700808 / DSM 15171 / DSS-3
RC   {ECO:0000313|Proteomes:UP000001023};
RX   PubMed=15602564; DOI=10.1038/nature03170;
RA   Moran M.A., Buchan A., Gonzalez J.M., Heidelberg J.F., Whitman W.B.,
RA   Kiene R.P., Henriksen J.R., King G.M., Belas R., Fuqua C., Brinkac L.,
RA   Lewis M., Johri S., Weaver B., Pai G., Eisen J.A., Rahe E.,
RA   Sheldon W.M., Ye W., Miller T.R., Carlton J., Rasko D.A.,
RA   Paulsen I.T., Ren Q., Daugherty S.C., Deboy R.T., Dodson R.J.,
RA   Durkin A.S., Madupu R., Nelson W.C., Sullivan S.A., Rosovitz M.J.,
RA   Haft D.H., Selengut J., Ward N.;
RT   "Genome sequence of Silicibacter pomeroyi reveals adaptations to the
RT   marine environment.";
RL   Nature 432:910-913(2004).
RN   [2] {ECO:0000313|EMBL:AAV93483.1, ECO:0000313|Proteomes:UP000001023}
RP   GENOME REANNOTATION.
RC   STRAIN=ATCC 700808 / DSM 15171 / DSS-3
RC   {ECO:0000313|Proteomes:UP000001023};
RX   PubMed=25780504; DOI=10.1186/1944-3277-9-11;
RA   Rivers A.R., Smith C.B., Moran M.A.;
RT   "An updated genome annotation for the model marine bacterium Ruegeria
RT   pomeroyi DSS-3.";
RL   Stand. Genomic Sci. 9:11-11(2014).
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; CP000031; AAV93483.1; -; Genomic_DNA.
DR   RefSeq; WP_011045926.1; NC_003911.12.
DR   STRING; 246200.SPO0155; -.
DR   EnsemblBacteria; AAV93483; AAV93483; SPO0155.
DR   KEGG; sil:SPO0155; -.
DR   eggNOG; ENOG4105C7D; Bacteria.
DR   eggNOG; COG0187; LUCA.
DR   HOGENOM; HOG000075155; -.
DR   KO; K02470; -.
DR   OMA; IYIACPP; -.
DR   OrthoDB; 205481at2; -.
DR   BioCyc; RPOM246200:G1G48-159-MONOMER; -.
DR   Proteomes; UP000001023; 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; -; 2.
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; Q5LWU8.
DR   SWISS-2DPAGE; Q5LWU8.
KW   ATP-binding {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924926};
KW   Complete proteome {ECO:0000313|Proteomes:UP000001023};
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:AAV93483.1};
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:UP000001023};
KW   Topoisomerase {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924964}.
FT   DOMAIN      426    541       Toprim. {ECO:0000259|PROSITE:PS50880}.
SQ   SEQUENCE   805 AA;  89545 MW;  6E2117302E2C0706 CRC64;
     MSEIEQPGNE YGADSIKVLK GLEAVRKRPG MYIGDTDDGS GLHHMVYEVV DNGIDEALAG
     HADHVTVKIH ADSSVSVADN GRGIPVDIHA EEGVSAAEVI MTQLHAGGKF DSNSYKVSGG
     LHGVGVSVVN ALSDWLELRI WRHGKEHVAR FERGDTVEHL RVVGECGDRT GTEVRFLAST
     TTFSNLDYVF ETLEKRLREL AFLNSGVRII LIDERPAERI ETELFYEGGV REFVKYLDRS
     KSPVMPAPIY FKGERDDIGV EIAMWWNDSY HETVLPFTNN IPQRDGGTHV AGFRGALTRT
     INNYAQSSGI AKREKINFTG DDAREGLTCV LSVKVPDPKF SSQTKDKLVS SEVRPAVENL
     VNEKLAEWFE ENPNVAKQIV GKIIEAALAR EAARKARELT RRKTAMDVNY LAGKLKDCSE
     KDPSKTEVFL VEGDSAGGSA QTGRDRRTQA VLPLRGKILN VERARFDRML GSQEIGNLVM
     ALGTGIGRDE FNISKLRYHK IVIMTDADVD GAHIRTLLLT FFYRQMPELI EGGYLYIAQP
     PLYKVARGKS EVYLKDQAAL DDYLIHQGVE GAVLKLGNGE EIVGQDLTRV VEEARQLKRV
     LDAFPTHYPR HIMEQAAVAG AFVAGAVDAD LQGVADKVAA RLDLIALEYE RGWLGRITQD
     HGIRLARILR GVEEVRTLDG PMLRSGEARK TGSFTRSLQE IYTQPAMLVR RDRTQAIHGP
     LTLLKAILDE GEKGLTLQRY KGLGEMNPEQ LWETTLDPDA RTLLQVRVND MVEADDIFTK
     LMGDSVEPRR EFIQQNALSV ENLDF
//

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