Structural highlights
6eng is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | BHW, CL, K, NA, PG4, PO4 |
| Activity: | DNA topoisomerase (ATP-hydrolyzing), with EC number 5.99.1.3 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[GYRB_ECOLI] DNA gyrase negatively supercoils closed circular double-stranded DNA in an ATP-dependent manner and also catalyzes the interconversion of other topological isomers of double-stranded DNA rings, including catenanes and knotted rings.[1] [2] [3]
Publication Abstract from PubMed
Coumermycin A1 is a natural aminocoumarin that inhibits bacterial DNA gyrase, a member of the GHKL proteins superfamily. We report here the first cocrystal structures of gyrase B bound to coumermycin A1, revealing that one coumermycin A1 molecule traps simultaneously two ATP-binding sites. The inhibited dimers from different species adopt distinct sequence-dependent conformations, alternative to the ATP-bound form. These structures provide a basis for the rational development of coumermycin A1 derivatives for antibiotherapy and biotechnology applications.
Structural Basis for DNA Gyrase Interaction with Coumermycin A1.,Vanden Broeck A, McEwen AG, Chebaro Y, Potier N, Lamour V J Med Chem. 2019 Apr 3. doi: 10.1021/acs.jmedchem.8b01928. PMID:30920824[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Noble CG, Maxwell A. The role of GyrB in the DNA cleavage-religation reaction of DNA gyrase: a proposed two metal-ion mechanism. J Mol Biol. 2002 Apr 26;318(2):361-71. PMID:12051843 doi:https://dx.doi.org/10.1016/S0022-2836(02)00049-9
- ↑ Sissi C, Chemello A, Vazquez E, Mitchenall LA, Maxwell A, Palumbo M. DNA gyrase requires DNA for effective two-site coordination of divalent metal ions: further insight into the mechanism of enzyme action. Biochemistry. 2008 Aug 19;47(33):8538-45. doi: 10.1021/bi800480j. Epub 2008 Jul, 22. PMID:18642932 doi:https://dx.doi.org/10.1021/bi800480j
- ↑ Schoeffler AJ, May AP, Berger JM. A domain insertion in Escherichia coli GyrB adopts a novel fold that plays a critical role in gyrase function. Nucleic Acids Res. 2010 Jul 31. PMID:20675723 doi:10.1093/nar/gkq665
- ↑ Vanden Broeck A, McEwen AG, Chebaro Y, Potier N, Lamour V. Structural Basis for DNA Gyrase Interaction with Coumermycin A1. J Med Chem. 2019 Apr 3. doi: 10.1021/acs.jmedchem.8b01928. PMID:30920824 doi:https://dx.doi.org/10.1021/acs.jmedchem.8b01928
