(data stored in SCRATCH zone)

SWISSPROT: A8LB21_FRASN

ID   A8LB21_FRASN            Unreviewed;       652 AA.
AC   A8LB21;
DT   04-DEC-2007, integrated into UniProtKB/TrEMBL.
DT   04-DEC-2007, sequence version 1.
DT   08-MAY-2019, entry version 91.
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=Franean1_0006 {ECO:0000313|EMBL:ABW09475.1};
OS   Frankia sp. (strain EAN1pec).
OC   Bacteria; Actinobacteria; Frankiales; Frankiaceae; Frankia.
OX   NCBI_TaxID=298653 {ECO:0000313|EMBL:ABW09475.1, ECO:0000313|Proteomes:UP000001313};
RN   [1] {ECO:0000313|Proteomes:UP000001313}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=EAN1pec {ECO:0000313|Proteomes:UP000001313};
RX   PubMed=17151343; DOI=10.1101/gr.5798407;
RA   Normand P., Lapierre P., Tisa L.S., Gogarten J.P., Alloisio N.,
RA   Bagnarol E., Bassi C.A., Berry A.M., Bickhart D.M., Choisne N.,
RA   Couloux A., Cournoyer B., Cruveiller S., Daubin V., Demange N.,
RA   Francino M.P., Goltsman E., Huang Y., Kopp O.R., Labarre L.,
RA   Lapidus A., Lavire C., Marechal J., Martinez M., Mastronunzio J.E.,
RA   Mullin B.C., Niemann J., Pujic P., Rawnsley T., Rouy Z.,
RA   Schenowitz C., Sellstedt A., Tavares F., Tomkins J.P., Vallenet D.,
RA   Valverde C., Wall L.G., Wang Y., Medigue C., Benson D.R.;
RT   "Genome characteristics of facultatively symbiotic Frankia sp. strains
RT   reflect host range and host plant biogeography.";
RL   Genome Res. 17:7-15(2007).
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   -!- 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; CP000820; ABW09475.1; -; Genomic_DNA.
DR   RefSeq; WP_012157452.1; NC_009921.1.
DR   STRING; 298653.Franean1_0006; -.
DR   EnsemblBacteria; ABW09475; ABW09475; Franean1_0006.
DR   KEGG; fre:Franean1_0006; -.
DR   eggNOG; ENOG4105C7D; Bacteria.
DR   eggNOG; COG0187; LUCA.
DR   HOGENOM; HOG000075154; -.
DR   KO; K02470; -.
DR   OMA; IYIACPP; -.
DR   OrthoDB; 205481at2; -.
DR   BioCyc; FSP298653:G1G9X-5-MONOMER; -.
DR   Proteomes; UP000001313; 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:InterPro.
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   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   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; A8LB21.
DR   SWISS-2DPAGE; A8LB21.
KW   ATP-binding {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924926};
KW   Complete proteome {ECO:0000313|Proteomes:UP000001313};
KW   Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01898};
KW   Isomerase {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924998, ECO:0000313|EMBL:ABW09475.1};
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:UP000001313};
KW   Topoisomerase {ECO:0000256|HAMAP-Rule:MF_01898,
KW   ECO:0000256|SAAS:SAAS00924964}.
FT   DOMAIN      431    545       Toprim. {ECO:0000259|PROSITE:PS50880}.
SQ   SEQUENCE   652 AA;  72022 MW;  C51B38EEE66DAFEE CRC64;
     MAYDASSIKV LEGLEAVRKR PGMYIGSTGE RGLHHLVYEV VDNAVDEALA GYCDTISVTL
     LADGGVRVTD NGRGIPVGEH PVKKIPTVEL VLTTLHAGGK FDGESYAVSG GLHGVGVSVV
     NALSTRLDVE IQTDGHSWFQ PYENSRPARP LAQTGTSKKT GTTITFWADP TIFETTTYKY
     ETLFRRLQEM AFLNKGLSIT LRDERGKATE TEEAAEPTEV TFKYDNGLVD FVGHLNATKD
     AVHRSVISLE SKGTGIEAEL AMQWNSGYNE SVYTFANTIN THEGGTHEEG FRAALTSAVN
     AYAKDQNLLK PVKAGSKNSD ERLSGDDIRE GLTAIISVKL AQPQFEGQTK TKLGNTEAKK
     FVQEMCYSAL KDWFEVNRTE ARSIVSKALD AQRARIAARQ ARDLTRRKGL LGGTGLPGKL
     ADCQFTDPER CELYIVEGDS AGGSAKGGRD SKFQAILPLR GKILNVEKAR IDRVLKNTEV
     QALIQALGCG IHDDFDIAKL RYHKIVLMAD ADVDGQHIRT LLLTLLFRFM RPLVEAGHVF
     LAQPPLYKIK WGREDWEYAY SDRERDGLLE QGVEAGRKLP KDAIQRFKGL GEMNATELWD
     TTMDPDKRIL LQVTLDDAAV ADELFSVLMG EDVDARRSFI QRNAKDVRFL DI
//

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