REL PDBe PDBe PDBe 2015-02-22 2015-03-18 2015-03-25 2015-04-15 EM structure of ribosome-SRP-FtsY complex in "closed" state von Loeffelholz O Jiang Q Ariosa A Karuppasamy M Huard K Berger I Shan S Schaffitzel C protein targeting, signal recognition particle, signal sequence, ribosome von Loeffelholz O Jiang Q Ariosa A Karuppasamy M Huard K Berger I Shan SO Schaffitzel C Ribosome-SRP-FtsY cotranslational targeting complex in the closed state. PROC.NAT.ACAD.SCI.USA 112 3943 3948 2015 25775537 doi:10.1073/pnas.1424453112 5aka FULLOVERLAP E. coli SRP-FtsY binds to E. coli ribosome with Lep50 nascent chain E. coli SRP-FtsY binds to E. coli ribosome with Lep50 nascent chain 2 2.7 E. coli 70S ribosome displaying Lep50 nascent chain
Ribosome-nascent chain complexes (RNCs) were prepared by in vitro transcription and translation from pUC19StrepLep50 and purified by sucrose gradient centrifugation and affinity chromatography.
false Escherichia coli 2.5 ribosome-prokaryote: ALL Signal recongnition particle and SRP receptor Escherichia coli 0.15
This is a single-chain construct comprising E.coli FtsY219 (truncated version lacking the N-terminal A-domain and the first helix of the N-domain) fused via a 31-amino acid glycine-serine-rich linker to full-length Ffh.
1 true Escherichia coli BL21 pET24 and pUC19 singleParticle particle 0.5 7.5
50mM Hepes-KOH, 100mM KOAc, 8mM Mg(OAc)2, 500ug/ml chloramphenicol
300 mesh quantifoil grid type R1.2/1.3 coated with a thin continuous carbon layer, glow-discharged for 30 s
 ETHANE 100 77 FEI VITROBOT MARK IV Blot for 2 seconds before plunging FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 0.6 3.0 77769.0 FEI TITAN KRIOS AUTOGRID HOLDER 2014-01-24 FEI FALCON II (4k x 4k) 2840 24
per micrograph
 C1 OTHER 5.7 OTHER Xmipp, 3.0, RELION
The final reconstruction has been done in RELION auto-refine. Final map has been b-factor sharpened in RELION using an automatically calculated b-factor value of -236.9
32170 emd_2917.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 180 180 180 -90 -90 -90 180 180 180 360.0 360.0 360.0 90.0 90.0 90.0 X Y Z -0.09933925 0.15849756 0.00025307 0.01427202 2.0 2.0 2.0 0.02 EMDB Reconstruction of ribosome-SRP-FtsY complex in the "closed" state. The map has been b-factor sharpened. The authors report resolution of 5.7 angstrom according to FSC=0.143, which was obtained from RELION post-process (for b-factor sharpening). Since the RELION post-process does not generate new half maps, the maps uploaded for FSC validation were the half maps before b-factor sharpening.
::::EMDATABANK.org::::EMD-2917::::
 2AW4 FLEXIBLE FIT Chimera, Coot
The structures were fitted by initial rigid body fitting in Chimera, followed by local refinement in Coot.
REAL 2XXA A FLEXIBLE FIT Chimera, Coot, HHpred, CNS
The structures were fitted by initial rigid body fitting in Chimera, followed by local refinement in Coot. The finger loop region was modelled in HHpred. The whole structure was finally energy minimization in CNS Version 1.0.
REAL
emd_2917.png
emd_2917_fsc.xml