DNA gyrase subunit B (GyrB) is the ATPase subunit of DNA gyrase, which is a type II topoisomerase that negatively supercoils closed circular double-stranded (ds) DNA in an ATP-dependent manner to modulate DNA topology and maintain chromosomes in an underwound state; may be partial
Histidine kinase-like ATPase domain of the B subunit of DNA gyrase; This family includes ...
13-185
9.17e-88
Histidine kinase-like ATPase domain of the B subunit of DNA gyrase; This family includes histidine kinase-like ATPase domain of the B subunit of DNA gyrase. Bacterial DNA gyrase is a type II topoisomerase (type II as it transiently cleaves both strands of DNA) which catalyzes the introduction of negative supercoils into DNA, possibly by a mechanism in which one segment of the double-stranded DNA substrate is passed through a transient break in a second segment. It consists of GyrA and GyrB subunits in an A2B2 stoichiometry; GyrA subunits catalyze strand-breakage and reunion reactions, and GyrB subunits hydrolyze ATP. DNA gyrase is found in bacteria, plants and archaea, but as it is absent in humans it is a possible drug target for the treatment of bacterial and parasite infections.
Pssm-ID: 340405 [Multi-domain] Cd Length: 180 Bit Score: 255.15 E-value: 9.17e-88
DNA topoisomerase IV, B subunit, proteobacterial; Operationally, topoisomerase IV is a type II ...
1-185
1.63e-48
DNA topoisomerase IV, B subunit, proteobacterial; Operationally, topoisomerase IV is a type II topoisomerase required for the decatenation of chromosome segregation. Not every bacterium has both a topo II and a topo IV. The topo IV families of the Gram-positive bacteria and the Gram-negative bacteria appear not to represent a single clade among the type II topoisomerases, and are represented by separate models for this reason. This protein is active as an alpha(2)beta(2) heterotetramer. [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 130127 [Multi-domain] Cd Length: 625 Bit Score: 166.25 E-value: 1.63e-48
Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase; This family represents the ...
9-118
3.72e-12
Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase; This family represents the structurally related ATPase domains of histidine kinase, DNA gyrase B and HSP90.
Pssm-ID: 460579 [Multi-domain] Cd Length: 109 Bit Score: 60.07 E-value: 3.72e-12
Histidine kinase-like ATPase domain of the B subunit of DNA gyrase; This family includes ...
13-185
9.17e-88
Histidine kinase-like ATPase domain of the B subunit of DNA gyrase; This family includes histidine kinase-like ATPase domain of the B subunit of DNA gyrase. Bacterial DNA gyrase is a type II topoisomerase (type II as it transiently cleaves both strands of DNA) which catalyzes the introduction of negative supercoils into DNA, possibly by a mechanism in which one segment of the double-stranded DNA substrate is passed through a transient break in a second segment. It consists of GyrA and GyrB subunits in an A2B2 stoichiometry; GyrA subunits catalyze strand-breakage and reunion reactions, and GyrB subunits hydrolyze ATP. DNA gyrase is found in bacteria, plants and archaea, but as it is absent in humans it is a possible drug target for the treatment of bacterial and parasite infections.
Pssm-ID: 340405 [Multi-domain] Cd Length: 180 Bit Score: 255.15 E-value: 9.17e-88
DNA topoisomerase IV, B subunit, proteobacterial; Operationally, topoisomerase IV is a type II ...
1-185
1.63e-48
DNA topoisomerase IV, B subunit, proteobacterial; Operationally, topoisomerase IV is a type II topoisomerase required for the decatenation of chromosome segregation. Not every bacterium has both a topo II and a topo IV. The topo IV families of the Gram-positive bacteria and the Gram-negative bacteria appear not to represent a single clade among the type II topoisomerases, and are represented by separate models for this reason. This protein is active as an alpha(2)beta(2) heterotetramer. [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 130127 [Multi-domain] Cd Length: 625 Bit Score: 166.25 E-value: 1.63e-48
Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase; This family represents the ...
9-118
3.72e-12
Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase; This family represents the structurally related ATPase domains of histidine kinase, DNA gyrase B and HSP90.
Pssm-ID: 460579 [Multi-domain] Cd Length: 109 Bit Score: 60.07 E-value: 3.72e-12
Histidine kinase-like ATPase domain of eukaryotic topoisomerase II; This family includes the ...
12-109
1.12e-05
Histidine kinase-like ATPase domain of eukaryotic topoisomerase II; This family includes the histidine kinase-like ATPase (HATpase) domains of human topoisomerase IIA (TopIIA) and TopIIB, Saccharomyces cerevisae TOP2p, and related proteins. These proteins catalyze the passage of DNA double strands through a transient double-strand break in the presence of ATP.
Pssm-ID: 340407 [Multi-domain] Cd Length: 147 Bit Score: 43.48 E-value: 1.12e-05
Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase; This family represents, additionally, ...
17-160
2.04e-03
Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase; This family represents, additionally, the structurally related ATPase domains of histidine kinase, DNA gyrase B and HSP90.
Pssm-ID: 433332 [Multi-domain] Cd Length: 135 Bit Score: 36.93 E-value: 2.04e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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Functional characterization of the conserved domain architecture found on the query.
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