REL PDBe PDBe PDBe 2013-04-13 2013-05-22 2013-07-10 2013-09-18 Electron cryo-EM of the full-length Thermus thermophilus DNA gyrase in complex with a 155bp DNA and ciprofloxacin Papillon J Menetret JF Batisse C Helye R Schultz P Potier N Lamour V DNA gyrase, DNA topoisomerase, DNA supercoiling Papillon J Menetret JF Batisse C Helye R Schultz P Potier N Lamour V Structural insight into negative DNA supercoiling by DNA gyrase, a bacterial type 2A DNA topoisomerase. NUCLEIC ACIDS RES. 41 7815 7827 2013 23804759 doi:10.1093/nar/gkt560 DNA-bound complex of Thermus thermophilus DNA gyrase with a 155bp DNA in presence of ADPNP and ciprofoxacin. DNA-bound complex of Thermus thermophilus DNA gyrase with a 155bp DNA in presence of ADPNP and ciprofoxacin.
monodisperse complex
dimer 1 0.413 0.413 native mass spectrometry DNA gyrase Thermus thermophilus 0.321 0.321
The two subinits of the DNA gyrase were fused for structural stability.
dimer true Escherichia coli BL21(DE3) modified pET28a linear DNA Escherichia coli
A 155bp DNA was used to form the DNA-bound complex. ADPNP (a non hydrolyzable analog of ATP) and ciprofloxacin (quinolone antibiotic) were added to stabilize the complex
DNA DOUBLE HELIX false singleParticle particle 0.150 8.0
20mM Hepes, 100 mM NaCl, 5mM MgCl2, 1mM DTT
Quantifoil R 2/2 holey carbon copper grids
 ETHANE 95 283 FEI VITROBOT MARK IV Plunging immediately after blotting FEI TECNAI F30 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 100 2 -1.0 3.0 59000.0 GATAN LIQUID NITROGEN 2011-12-11 FEI EAGLE (4k x 4k) 900 20
phase flipping (each particle)
 C1 OTHER 23.0 FSC 0.5 CUT-OFF EMAN2 41500 emd_2361.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 192 192 192 -96 -96 -96 192 192 192 368.63998 368.63998 368.63998 90.0 90.0 90.0 X Y Z -1.24862158 3.11563373 0.02745328 0.18016443 1.92 1.92 1.92 0.55 AUTHOR Recontruction of the full length Thermus thermophilus DNA gyrase bound to DNA.
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