| Structural highlights
4hz0 is a 2 chain structure with sequence from Ecoli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | 1AV, MG |
| Related: | 4hz5, 4hyp, 4hym, 4hy1, 4hxz, 4ggl, 4gfn, 4gee, 4hxw |
| Gene: | b3030, DNA topoisomerase IV subunit B ParE, JW2998, nfxD, parE (ECOLI) |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[PARE_ECOLI] Topoisomerase IV is essential for chromosome segregation. It relaxes supercoiled DNA. Performs the decatenation events required during the replication of a circular DNA molecule. MukB stimulates the relaxation activity of topoisomerase IV and also has a modest effect on decatenation.[1] [2] [3]
Publication Abstract from PubMed
The bacterial topoisomerases DNA gyrase (GyrB) and topoisomerase IV (ParE) are essential enzymes that control the topological state of DNA during replication. The high degree of conservation in the ATP-binding pockets of these enzymes make them appealing targets for broad-spectrum inhibitor development. A pyrrolopyrimidine scaffold was identified from a pharmacophore-based fragment screen with optimization potential. Structural characterization of inhibitor complexes conducted using selected GyrB/ParE orthologs aided in the identification of important steric, dynamic and compositional differences in the ATP-binding pockets of the targets, enabling the design of highly potent pyrrolopyrimidine inhibitors with broad enzymatic spectrum and dual targeting activity.
Pyrrolopyrimidine inhibitors of DNA gyrase B (GyrB) and topoisomerase IV (ParE). Part I: Structure guided discovery and optimization of dual targeting agents with potent, broad-spectrum enzymatic activity.,Tari LW, Trzoss M, Bensen DC, Li X, Chen Z, Lam T, Zhang J, Creighton CJ, Cunningham ML, Kwan B, Stidham M, Shaw KJ, Lightstone FC, Wong SE, Nguyen TB, Nix J, Finn J Bioorg Med Chem Lett. 2012 Dec 5. pii: S0960-894X(12)01475-8. doi:, 10.1016/j.bmcl.2012.11.032. PMID:23352267[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Pitts SL, Liou GF, Mitchenall LA, Burgin AB, Maxwell A, Neuman KC, Osheroff N. Use of divalent metal ions in the DNA cleavage reaction of topoisomerase IV. Nucleic Acids Res. 2011 Jun;39(11):4808-17. doi: 10.1093/nar/gkr018. Epub 2011, Feb 7. PMID:21300644 doi:https://dx.doi.org/10.1093/nar/gkr018
- ↑ Bellon S, Parsons JD, Wei Y, Hayakawa K, Swenson LL, Charifson PS, Lippke JA, Aldape R, Gross CH. Crystal structures of Escherichia coli topoisomerase IV ParE subunit (24 and 43 kilodaltons): a single residue dictates differences in novobiocin potency against topoisomerase IV and DNA gyrase. Antimicrob Agents Chemother. 2004 May;48(5):1856-64. PMID:15105144
- ↑ Li Y, Stewart NK, Berger AJ, Vos S, Schoeffler AJ, Berger JM, Chait BT, Oakley MG. Escherichia coli condensin MukB stimulates topoisomerase IV activity by a direct physical interaction. Proc Natl Acad Sci U S A. 2010 Nov 2;107(44):18832-7. doi:, 10.1073/pnas.1008678107. Epub 2010 Oct 4. PMID:20921377 doi:https://dx.doi.org/10.1073/pnas.1008678107
- ↑ Tari LW, Trzoss M, Bensen DC, Li X, Chen Z, Lam T, Zhang J, Creighton CJ, Cunningham ML, Kwan B, Stidham M, Shaw KJ, Lightstone FC, Wong SE, Nguyen TB, Nix J, Finn J. Pyrrolopyrimidine inhibitors of DNA gyrase B (GyrB) and topoisomerase IV (ParE). Part I: Structure guided discovery and optimization of dual targeting agents with potent, broad-spectrum enzymatic activity. Bioorg Med Chem Lett. 2012 Dec 5. pii: S0960-894X(12)01475-8. doi:, 10.1016/j.bmcl.2012.11.032. PMID:23352267 doi:https://dx.doi.org/10.1016/j.bmcl.2012.11.032
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