Ab initio reconstruction of GroEL via the asymmetric random-model method

REL RCSB RCSB RCSB 2009-11-21 2010-04-26 2010-04-26 2010-06-21 Ab initio reconstruction of GroEL via the asymmetric random-model method Sanz E Stewart AB Belnap DM random-model method, ab initio reconstruction, GroEL Sanz Garcia E Stewart AB Belnap DM The random-model method enables ab initio 3D reconstruction of asymmetric particles and determination of particle symmetry. J.STRUCT.BIOL. 171 216 222 2010 20353825 doi:10.1016/j.jsb.2010.03.017 Stagg SM Lander GC Quispe J Voss NR Cheng A Bradlow H Bradlow S Carragher B Potter CS A test-bed for optimizing high-resolution single particle reconstructions J.STRUCT.BIOL. 163 29 39 2008 GroEL GroEL

S.M. Stagg, G.C. Lander, J. Quispe, N.R. Voss, A. Cheng, H. Bradlow, S. Bradlow, B. Carragher, C.S. Potter, A test-bed for optimizing high-resolution single particle reconstructions, J. Struct. Biol. 163 (2008) 29-39.Publicly available data set.

14 GroEL

14 homo-tetradecamer false Escherichia coli Bacteria Escherichia coli singleParticle particle 3.2 7.5

100 mM Hepes, pH 7.5, 10 mM Mg(OAc)2, 10 mM KOAc, and 2 mM DTT

400 mesh copper grids Cflat

ETHANE OTHER

Vitrification instrument: Vitrobot

FEI TECNAI F20 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 120 2.0 9.0 100000.0 GATAN LIQUID NITROGEN

GENERIC CCD

Eucentric

Phase-flipped

OTHER 18.0 FSC 0.5 CUT-OFF PFT3DR, Bsoft

Random-model method. Angular step-size was initially set to 20 deg. in the first iteration and gradually decreased by 0.19 deg. in each successive iteration, until a lower limit of 1 deg. was reached.

6613 emd_5143.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 155 155 155 -77 -77 -77 155 155 155 254.2 254.2 254.2 90 90 90 X Y Z -0.0942693 0.0825672 -0.00000000384914 0.0126561 1.64 1.64 1.64 0.015 AUTHOR GroEL

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