ID C8WXT1_ALIAD Unreviewed; 637 AA.
AC C8WXT1;
DT 03-NOV-2009, integrated into UniProtKB/TrEMBL.
DT 03-NOV-2009, sequence version 1.
DT 27-MAR-2024, entry version 101.
DE RecName: Full=DNA gyrase subunit B {ECO:0000256|HAMAP-Rule:MF_01898};
DE EC=5.6.2.2 {ECO:0000256|HAMAP-Rule:MF_01898};
GN Name=gyrB {ECO:0000256|HAMAP-Rule:MF_01898};
GN OrderedLocusNames=Aaci_0005 {ECO:0000313|EMBL:ACV57070.1};
OS Alicyclobacillus acidocaldarius subsp. acidocaldarius (strain ATCC 27009 /
OS DSM 446 / BCRC 14685 / JCM 5260 / KCTC 1825 / NBRC 15652 / NCIMB 11725 /
OS NRRL B-14509 / 104-IA) (Bacillus acidocaldarius).
OC Bacteria; Bacillota; Bacilli; Bacillales; Alicyclobacillaceae;
OC Alicyclobacillus.
OX NCBI_TaxID=521098 {ECO:0000313|EMBL:ACV57070.1, ECO:0000313|Proteomes:UP000001917};
RN [1] {ECO:0000313|Proteomes:UP000001917}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27009 / DSM 446 / BCRC 14685 / JCM 5260 / KCTC 1825 / NBRC
RC 15652 / NCIMB 11725 / NRRL B-14509 / 104-IA
RC {ECO:0000313|Proteomes:UP000001917};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Kyrpides N., Mavromatis K., Ivanova N.,
RA Ovchinnikova G., Chertkov O., Sims D., Brettin T., Detter J.C., Han C.,
RA Larimer F., Land M., Hauser L., Markowitz V., Cheng J.-F., Hugenholtz P.,
RA Woyke T., Wu D., Pukall R., Klenk H.-P., Eisen J.A.;
RT "The complete chromosome of Alicyclobacillus acidocaldarius subsp.
RT acidocaldarius DSM 446.";
RL Submitted (SEP-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ACV57070.1, ECO:0000313|Proteomes:UP000001917}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27009 / DSM 446 / BCRC 14685 / JCM 5260 / KCTC 1825 / NBRC
RC 15652 / NCIMB 11725 / NRRL B-14509 / 104-IA
RC {ECO:0000313|Proteomes:UP000001917};
RX PubMed=21304673; DOI=10.4056/sigs.591104;
RA Mavromatis K., Sikorski J., Lapidus A., Glavina Del Rio T., Copeland A.,
RA Tice H., Cheng J.F., Lucas S., Chen F., Nolan M., Bruce D., Goodwin L.,
RA Pitluck S., Ivanova N., Ovchinnikova G., Pati A., Chen A., Palaniappan K.,
RA Land M., Hauser L., Chang Y.J., Jeffries C.D., Chain P., Meincke L.,
RA Sims D., Chertkov O., Han C., Brettin T., Detter J.C., Wahrenburg C.,
RA Rohde M., Pukall R., Goker M., Bristow J., Eisen J.A., Markowitz V.,
RA Hugenholtz P., Klenk H.P., Kyrpides N.C.;
RT "Complete genome sequence of Alicyclobacillus acidocaldarius type strain
RT (104-IA).";
RL Stand. Genomic Sci. 2:9-18(2010).
CC -!- FUNCTION: A type II topoisomerase that negatively supercoils closed
CC circular double-stranded (ds) DNA in an ATP-dependent manner to
CC modulate DNA topology and maintain chromosomes in an underwound state.
CC Negative supercoiling favors strand separation, and DNA replication,
CC transcription, recombination and repair, all of which involve strand
CC separation. Also able to catalyze the interconversion of other
CC topological isomers of dsDNA rings, including catenanes and knotted
CC rings. Type II topoisomerases break and join 2 DNA strands
CC simultaneously in an ATP-dependent manner. {ECO:0000256|HAMAP-
CC Rule:MF_01898}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP-dependent breakage, passage and rejoining of double-
CC stranded DNA.; EC=5.6.2.2; Evidence={ECO:0000256|ARBA:ARBA00000185,
CC ECO:0000256|HAMAP-Rule:MF_01898};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01898};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01898};
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01898};
CC Note=Binds two Mg(2+) per subunit. The magnesium ions form salt bridges
CC with both the protein and the DNA. Can also accept other divalent metal
CC cations, such as Mn(2+) or Ca(2+). {ECO:0000256|HAMAP-Rule:MF_01898};
CC -!- SUBUNIT: Heterotetramer, composed of two GyrA and two GyrB chains. In
CC the heterotetramer, GyrA contains the active site tyrosine that forms a
CC transient covalent intermediate with DNA, while GyrB binds cofactors
CC and catalyzes ATP hydrolysis. {ECO:0000256|HAMAP-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 topoisomerases;
CC in organisms with a single type II topoisomerase this enzyme also has
CC to decatenate newly replicated chromosomes. {ECO:0000256|HAMAP-
CC Rule:MF_01898}.
CC -!- SIMILARITY: Belongs to the type II topoisomerase GyrB family.
CC {ECO:0000256|ARBA:ARBA00010708, ECO:0000256|HAMAP-Rule:MF_01898}.
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DR EMBL; CP001727; ACV57070.1; -; Genomic_DNA.
DR RefSeq; WP_012809469.1; NC_013205.1.
DR AlphaFoldDB; C8WXT1; -.
DR STRING; 521098.Aaci_0005; -.
DR KEGG; aac:Aaci_0005; -.
DR eggNOG; COG0187; Bacteria.
DR HOGENOM; CLU_006146_1_2_9; -.
DR Proteomes; UP000001917; 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 (double strand cut, 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-templated DNA replication; IEA:UniProtKB-UniRule.
DR CDD; cd16928; HATPase_GyrB-like; 1.
DR CDD; cd00822; TopoII_Trans_DNA_gyrase; 1.
DR CDD; cd03366; TOPRIM_TopoIIA_GyrB; 1.
DR Gene3D; 3.30.230.10; -; 1.
DR Gene3D; 3.40.50.670; -; 1.
DR Gene3D; 3.30.565.10; Histidine kinase-like ATPase, C-terminal domain; 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_Su5_D2-typ_SF.
DR InterPro; IPR014721; Ribsml_uS5_D2-typ_fold_subgr.
DR InterPro; IPR001241; Topo_IIA.
DR InterPro; IPR013760; Topo_IIA-like_dom_sf.
DR InterPro; IPR000565; Topo_IIA_B.
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 NCBIfam; TIGR01059; gyrB; 1.
DR PANTHER; PTHR45866:SF1; DNA GYRASE SUBUNIT B, MITOCHONDRIAL; 1.
DR PANTHER; PTHR45866; DNA GYRASE/TOPOISOMERASE SUBUNIT B; 1.
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 PRINTS; PR01159; DNAGYRASEB.
DR PRINTS; PR00418; TPI2FAMILY.
DR SMART; SM00387; HATPase_c; 1.
DR SMART; SM00433; TOP2c; 1.
DR SUPFAM; SSF55874; ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase; 1.
DR SUPFAM; SSF54211; Ribosomal protein S5 domain 2-like; 1.
DR SUPFAM; SSF56719; Type II DNA topoisomerase; 1.
DR PROSITE; PS00177; TOPOISOMERASE_II; 1.
DR PROSITE; PS50880; TOPRIM; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01898}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01898};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01898};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01898};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01898};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01898}; Reference proteome {ECO:0000313|Proteomes:UP000001917};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01898}.
FT DOMAIN 422..536
FT /note="Toprim"
FT /evidence="ECO:0000259|PROSITE:PS50880"
FT BINDING 428
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT BINDING 501
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT BINDING 501
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT BINDING 503
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT SITE 453
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT SITE 456
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
SQ SEQUENCE 637 AA; 70919 MW; E8D19CF8A58B79EA CRC64;
MADRIPEQVY DESQIEVLEG LQAVRKRPGM YIGSTSAKGL HHLVWEIVDN AVDEALAGRC
TRIVVQVHPD NSVTVIDNGA GFPVGIHPKT GRPAVETVLT TLHAGGKFGG KGYKVSGGLH
GVGASVVNAL SEWMRVEVHR DGRIYVQEYE RGTPLYDLKV IGTTDKTGTK VSFKPDPEIF
TETTVFSAET LMNRLRELAF LNAGLEIVFE DEREGGKRAV FKYDGGVAEF VRWLNQSKDV
LFDDPIYVSA VKDDVAVEIA LQYNDGYAAT VYSFANNINT AEGGTHEAGF KSALTRVIND
YARRYGFLKS NDNSMTGDDV REGLTAVVSV KVPEPQFEGQ TKTKLGNSEV RGIVETLFAE
RMQMFLEENP SIARKIVEKC ILAARAREAA RRARELTRSK KMDVTSLPGK LTDCSSKDPE
RSELFLVEGD SAGGSAKMGR DPQTQAILPL RGKIINVEKA RLDKVLANEE IRAIITACGT
GIGDDFDISK ARYHKIVIMT DADHDGSHIR ILLLTLFYRF MRPLIDAGYI YIAQPPLYKI
EKGKVVRYAY SDAQLEQILQ EMGREGVRLQ RYKGLGEMNA DQLWETTMDP ESRTLLRVTM
EDAMDADMIF SILMGDKVEP RRDFIAEHAR FVRNLDV
//
