REL PDBe PDBe PDBe 2005-08-13 2005-08-16 2006-02-03 2011-09-02 Electron cryotomography of the E. coli pyruvate and 2-oxoglutarate dehydrogenase complexes. Murphy GE Jensen GJ Murphy GE Jensen GJ Electron cryotomography of the E. coli pyruvate and 2-oxoglutarate dehydrogenase complexes. STRUCTURE 13 1765 1773 2005 16338405 doi:10.1016/j.str.2005.08.016 Unengineered E. coli Pyruvate Dehydrogenase Multienzyme Complex Unengineered E. coli Pyruvate Dehydrogenase Multienzyme Complex
The sample was thawed from storage at -80 degrees Celcius before being loaded onto the grid.
Up to 24 pyruvate dehydrogenase E1p and dihydrolipoamide dehydrogenase E3 dimers together bind to the 24 dihydrolipoamide acetyltransferase E2p octahedral core. 3 5.6 E2p octahedral core Escherichia coli E. coli cytoplasm 1.6
24 arranged as cube; See Wagenknecht, T. et al., JSB 109:70-77 (1992).
24 24mer true Escherichia coli IPR006256 E1p Escherichia coli E. coli cytoplasm 0.2
Up to 24 of these; See Wagenknecht, T. et al., JSB 109:70-77 (1992).
2 Dimer true Escherichia coli IPR004660 E3 Escherichia coli E. coli Cytoplasm 0.1
Up to 24 of these; See Wagenknecht, T. et al., JSB 109:70-77 (1992).
2 Dimer true Escherichia coli IPR006258 subtomogramAveraging 2 7.0
20 mM Potassium Phosphate
R 1.5/1.3 Quantifoil
 ETHANE 100 OTHER
Vitrification instrument: Vitrobot. Sample was at 22 C in air before plunging.
Blot for 3.5 seconds with an offset of -3 before plunging. FEI TECNAI F30 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2 10.0 10.0 27500.0 36600.0 GATAN HELIUM 82 82 82 0 GIF 3000 0.0 20.0 2004-08-24 GATAN ULTRASCAN 1000 (2k x 2k) 110 FEI Polara -63 66
Dual-axis tilt series, with 44 sections on one axis, and 45 on the other. Average number of tilts used in the 3D reconstructions: 89. Average tomographic tilt angle increment: 3.
OTHER 55.0 FSC 0.5 CUT-OFF IMOD
The individual, orthogonal tomograms were filtered at their first CTF zero and then merged.
 emd_1151.map.gz 1 IMAGE STORED AS SIGNED BYTE 80 80 80 -40 -40 -40 80 80 80 656 656 656 90 90 90 X Y Z -128.0 127.0 -24.177199999999999 16.0382 8.2 8.2 8.2 20.0 EMDB Volume of an extracted E. coli pyruvate dehydrogenase multienzyme complex particle from a dual-tilt tomogram.
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 1L8A 1DPC 1EBD RIGID BODY FIT
The octameric E2p core (1DPC) was fit into the core density using bfind from the Bsoft package. Up to 24 E1p (1L8A) and E3 (1EBD) dimers were fit into the peripheral density manually using Amira.