ID A0A0H3IXF9_CLOPA Unreviewed; 636 AA.
AC A0A0H3IXF9;
DT 16-SEP-2015, integrated into UniProtKB/TrEMBL.
DT 16-SEP-2015, sequence version 1.
DT 24-JAN-2024, entry version 45.
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 ECO:0000313|EMBL:AJA50134.1};
GN ORFNames=CLPA_c00060 {ECO:0000313|EMBL:AJA50134.1}, CP6013_03109
GN {ECO:0000313|EMBL:KRU13853.1};
OS Clostridium pasteurianum DSM 525 = ATCC 6013.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=1262449 {ECO:0000313|EMBL:AJA50134.1, ECO:0000313|Proteomes:UP000030905};
RN [1] {ECO:0000313|EMBL:AJA50134.1, ECO:0000313|Proteomes:UP000030905}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 525 {ECO:0000313|EMBL:AJA50134.1}, and DSM 525 / ATCC 6013
RC {ECO:0000313|Proteomes:UP000030905};
RX PubMed=25700415;
RA Poehlein A., Grosse-Honebrink A., Zhang Y., Minton N.P., Daniel R.;
RT "Complete Genome Sequence of the Nitrogen-Fixing and Solvent-Producing
RT Clostridium pasteurianum DSM 525.";
RL Genome Announc. 3:e01591-e01514(2015).
RN [2] {ECO:0000313|EMBL:KRU13853.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=ATCC 6013 {ECO:0000313|EMBL:KRU13853.1};
RA Pyne M.E., Utturkar S.M., Brown S.D., Moo-Young M., Chung D.A., Chou P.C.;
RT "Improved Draft Genome Sequence of Clostridium pasteurianum Strain ATCC
RT 6013 (DSM 525) Using a Hybrid Next-Generation Sequencing Approach.";
RL Submitted (OCT-2015) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:KRU13853.1, ECO:0000313|Proteomes:UP000028042}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 6013 {ECO:0000313|EMBL:KRU13853.1,
RC ECO:0000313|Proteomes:UP000028042};
RX PubMed=25103768;
RA Pyne M.E., Utturkar S., Brown S.D., Moo-Young M., Chung D.A., Chou C.P.;
RT "Improved Draft Genome Sequence of Clostridium pasteurianum Strain ATCC
RT 6013 (DSM 525) Using a Hybrid Next-Generation Sequencing Approach.";
RL Genome Announc. 2:0-0(0).
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; CP009268; AJA50134.1; -; Genomic_DNA.
DR EMBL; JPGY02000001; KRU13853.1; -; Genomic_DNA.
DR RefSeq; WP_003444863.1; NZ_JPGY02000001.1.
DR AlphaFoldDB; A0A0H3IXF9; -.
DR GeneID; 76624519; -.
DR KEGG; cpae:CPAST_c00060; -.
DR KEGG; cpat:CLPA_c00060; -.
DR PATRIC; fig|1262449.3.peg.2027; -.
DR eggNOG; COG0187; Bacteria.
DR Proteomes; UP000028042; Unassembled WGS sequence.
DR Proteomes; UP000030905; 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:UP000030905};
KW Topoisomerase {ECO:0000256|ARBA:ARBA00023029, ECO:0000256|HAMAP-
KW Rule:MF_01898}.
FT DOMAIN 419..533
FT /note="Toprim"
FT /evidence="ECO:0000259|PROSITE:PS50880"
FT BINDING 425
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 498
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 498
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT BINDING 500
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT SITE 450
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
FT SITE 453
FT /note="Interaction with DNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01898"
SQ SEQUENCE 636 AA; 71600 MW; 8D12DE54504C4B8A CRC64;
MSQNNGNYDE SQIQVLEGLE AVRKRPGMYI GSTSLKGLHH LVYEIVDNSI DEALAGFCKN
INVVIHKDNS VSVTDDGRGM PVGIHHKMNK PTVEVIMTVL HAGGKFGGGG YKVSGGLHGV
GASVVNALSE TCEVIVKREG HIWRQMYHRG NVASPFEKIG DTEEHGTKIN FKPDPEIFDE
IEFNYDTLAQ RLRELAFLNK GIKINFVDER QDKKEVFHYE GGIKSFVSYL NRNKEPIFPE
PIYIEGYKNE YMVEIALQYN DGYAENLFSF ANNIDTVEGG THLSGFKTAL TRVLNDYARK
FNFIKENDKN FSGEDIREGL TAVVSVKLPD PQFEGQTKTK LGNSEVRGIV DSILGENVSA
FLEENPQIAK IIIDKAMLAS RARDAAKKAR ELTRRKSVLE TTALPGKLAD CSSKDPAECE
IYIVEGDSAG GSAKQGRDRR FQAILPLRGK IMNVEKQRID KILNSEMIRA MITAFGAGIS
KDFNIEKIRY HRIIIMTDAD VDGAHIRTLL LTFFYRYMRE LVEQGHVYIA QPPLYKVSKG
KKEIYCYLEE ELDKALEELG GKDNNTSIQR YKGLGEMNAE QLWETTMDPE RRILLKATVE
DAMAADEIFT ILMGDKVEPR REFIQQNAKN VVNLDI
//
