REL RCSB RCSB RCSB 2013-06-14 2013-08-21 2013-10-23 2014-07-23 Park P Menetret JF Gumbart JC Ludtke SJ Li W Whynot A Rapoport TA Akey CW archaeal 70S ribosome, SecYEbeta channel, co-translational translocation Park E Menetret JF Gumbart JC Ludtke SJ Li W Whynot A Rapoport TA Akey CW NATURE 506 102 106 2014 24153188 doi:10.1038/nature12720 4v4n FULLOVERLAP Methanococcus jannaschii 70S ribosome-SecYEbeta complex Methanococcus jannaschii 70S ribosome-SecYEbeta complex

The sample was reconstituted from ribosomal subunits purified from M. jannaschii and from recombinant SecYEbeta.

one 70S, one E-site tRNA, one SecYEbeta channel 3 2.6 non-translating 70S ribosome false Methanocaldococcus jannaschii cytoplasm 2.5 ribosome-prokaryote: ALL SecYEbeta Methanocaldococcus jannaschii inner membrane 0.0618

SecY: Q60175.2, SecE: Q57817.1, Secbeta: P60460.1

1 heterotrimer true Escherichia coli C43(DE3) pBAD22 transfer RNA Methanocaldococcus jannaschii 0.025

co-purified with the ribosomal subunits

TRANSFER DOUBLE HELIX false singleParticle particle 2 7.5

100 mM NH4Cl, 30 mM MgCl2, 20 mM HEPES-KOH, 6 mM beta-mercaptoethanol, 0.1% DDM

Quantifoil 400 mesh 2/1 Cu grids, air glow discharged, and 400 mesh Cu grids with a thin continuous carbon foil

ETHANE 100 77 FEI VITROBOT MARK III Blot 1-2 seconds before plunging. FEI TECNAI F20 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 200 2.0 1.0 2.5 50000.0 51000.0 GATAN LIQUID NITROGEN 93 corrected at 175,000 times magnification

Low dose imaging, data collected manually

2008-04-10 KODAK SO-163 FILM OTHER 217 20

Zeiss SCAI scanner was also used.

1.0 16. Oxford holder

Particles were selected with e2boxer and CTF-corrected with EMAN2. Final maps were obtained from 6 different refinement conditions, aligned in Chimera, and averaged to produce the final map.

per micrograph

OTHER 9.0 OTHER EMAN1, EMAN2

Final map calculated as an average of 6 different refinements in EMAN2 with different parameters.

37000 3800 3J21 FLEXIBLE FIT Chimera, MDFF

Docked with Chimera and fit with MDFF. Chains omitted: 1('el' 1-77), 6(L83-1), 4(L83-2), c(L33e). Chains truncated: a(L31e) 78-85, W(L29) 67-72, C(L3) 103-125.

REAL 3J2L FLEXIBLE FIT Chimera, MDFF

Regions omitted: rRNA chain 1 [1-6, 3047-3049 5' and 3' ends 23S], 150-163, 750-756, 1311-1321, 2904-2942 (ES).

REAL 3J20 FLEXIBLE FIT Chimera, MDFF REAL 1RHZ A B C FLEXIBLE FIT Chimera, MDFF REAL

emd_5691.jpg

emd_5691_msk_5.map emd_5691_msk_5.map 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 80 97 74 -35 -52 -62 97 80 74 218.4 264.81 202.02 90.0 90.0 90.0 X Y Z -0.58210534 3.3690238 0.16128597 0.41545185 2.73 2.73 2.73 zoned small ribosomal subunit

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emd_5691_msk_1.map emd_5691_msk_1.map 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 163 163 162 -81 -81 -81 163 163 162 444.99 444.99 442.26 90.0 90.0 90.0 X Y Z -0.75200433 3.55626702 0.03533489 0.21288201 2.73 2.73 2.73 zone large ribosomal subunit

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emd_5691_msk_2.map emd_5691_msk_2.map 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 163 163 162 -81 -81 -81 163 163 162 444.99 444.99 442.26 90.0 90.0 90.0 X Y Z -0.27104318 2.50369811 0.00297101 0.05671293 2.73 2.73 2.73 zoned full channel desnity

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emd_5691_msk_3.map emd_5691_msk_3.map 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 33 31 40 0 -24 20 31 33 40 90.090004 84.63 109.2 90.0 90.0 90.0 X Y Z -0.19193706 2.50369811 0.16847618 0.41531357 2.73 2.73 2.73 segmented density with only SecYEbeta

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emd_5691_msk_4.map emd_5691_msk_4.map 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 163 163 162 -81 -81 -81 163 163 162 444.99 444.99 442.26 90.0 90.0 90.0 X Y Z -0.27104318 1.81772888 0.00134721 0.03593696 2.73 2.73 2.73 zoned micelle

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