REL RCSB RCSB RCSB 2013-06-25 2013-11-20 2013-11-20 2014-08-27 Structure of NtrC1 ATPase in complex with Sigma-54 and promoter DNA Chowdhury S Sysoeva TA Guo L Nixon BT AAA+ ATPase, NtrC1, Sigma-54 Sysoeva TA Chowdhury S Guo L Nixon BT Nucleotide-induced asymmetry within ATPase activator ring drives {sigma}54-RNAP interaction and ATP hydrolysis GENES DEV. 27 2500 2511 2013 24240239 doi:10.1101/gad.229385.113 Complex of NtrC1 AAA+ ATPase hexamer with Sigma-54 and promoter DNA Complex of NtrC1 AAA+ ATPase hexamer with Sigma-54 and promoter DNA
The sample was monodisperse.
One hexamer of NtrC1 AAA+ ATPase binds to one double-stranded promoter DNA and one Sigma-54. 3 0.26 ATPase Associated with various cellular activities Aquifex aeolicus VF5 0.031
Hexamer of the NtrC1 AAA+ ATPase domain
6 Hexamer true Escherichia coli BL21(DE3) pET122 GO:0017111 IPR003593 Sigma-54 Klebsiella pneumoniae 0.057
Single copy of bacterial transcription initiation factor Sigma-54
1 Monomer true Escherichia coli BL21(DE3) pET122 B5XST9 GO:0006352 GO:0006355 GO:0003677 GO:0003899 GO:0016987 IPR000394 nifH promoter DNA Sinorhizobium meliloti 0.022
This is a pre-melt nifH promoter, with a -11, -12 mismatch. The complementary strand has G and T at 12 and 13 base positions from 5' end instead of T and G.
CAGACGGCTGGCACGACTTTTGCCAGATCAGCCCTG DNA DOUBLE HELIX true singleParticle particle 0.01 7.9
1mM ADP, 1mM AlCl3, 8mM NaF, 1mM MgCl2, 20mM Tris-HCl, 1% (w/v) trehalose, 1mM TCEP
 NEGATIVE
Sample was adsorbed on thin continuous carbon coated grids, stained with 0.75% (w/v) uranyl formate, and air-dried.
Thin carbon film on 300 mesh Cu-Rh maxtaform grids, plasma cleaned in oxygen-hydrogen gas mixture for 15s
 NONE OTHER JEOL 2100F SPOT SCAN BRIGHT FIELD FIELD EMISSION GUN 200 2 1.5 2.5 50000.0 80000.0 JEOL 2011-08-10 GENERIC TVIPS (2k x 2k) 280 20 49
102 regular, untilted micrographs were collected and 89 tilt-untilt pairs of RCT micrographs were collected.
 Room temperature specimen 45 65
Particles were picked manually using XMIPP.
Per micrograph
 OTHER 24.0 FSC 0.5 CUT-OFF XMIPP, EMAN2, SPARX
Final map was calculated by refinement of RCT model by iterative projection matching and back projection.
20000
EMAN2: az 90 degrees, alt 90 degrees, phi 90 degrees
 emd_5698.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 46 46 46 -22 -22 -22 46 46 46 276.736 276.736 276.736 90.0 90.0 90.0 X Y Z -4.88061285 15.494498249999999 0.11384889 0.82977331 6.016 6.016 6.016 2.75 AUTHOR Negative stained reconstruction of NtrC1 AAA+ ATPase, Sigma-54, and promoter DNA complex
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