Arrangement of tRNAs in Pre- and Posttranslocational Ribosomes Revealed by Electron Cryomicroscopy
Arrangement of tRNAs in Pre- and Posttranslocational Ribosomes Revealed by Electron Cryomicroscopy
复制标题
电子冷冻显微镜揭示易位前和易位后核糖体中 tRNA 的排列
DOI:
10.1016/s0092-8674(00)81854-1
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发表时间:
1997
期刊:
影响因子:
64.5
通讯作者:
M. Heel
中科院分区:
文献类型:
--
作者:
H. Stark;E. Orlova;J. Rinke;N. Jünke;F. Mueller;M. Rodnina;W. Wintermeyer;R. Brimacombe;M. Heel
The three-dimensional structure of the translating 70S E. coli ribosome is presented in its two main conformations: the pretranslocational and the posttranslocational states. Using electron cryomicroscopy and angular reconstitution, structures at 20 Å resolution were obtained, which, when compared with our earlier reconstruction of "empty" ribosomes, showed densities corresponding to tRNA molecules—at the P and E sites for posttranslocational ribosomes and at the A and P sites for pretranslocational ribosomes. The P-site tRNA lies directly above the bridge connecting the two ribosomal subunits, with the A-site tRNA fitted snugly against it at an angle of ∼50°, toward the L7/L12 side of the ribosome. The E-site tRNA appears to lie between the side lobe of the 30S subunit and the L1 protuberance.
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DOI:
10.1002/j.1460-2075.1993.tb05694.x
发表时间:
1993
期刊:
The EMBO journal
影响因子:
--
作者:
Wower,J;Scheffer,P;Sylvers,LA;Wintermeyer,W;Zimmermann,RA
通讯作者:
Zimmermann,RA
影响因子:
5.6
作者:
JOHNSON, AE;ADKINS, HJ;CANTOR, CR
通讯作者:
CANTOR, CR
DOI:
10.1073/pnas.86.14.5232
发表时间:
1989
影响因子:
11.1
作者:
Wower,J;Hixson,SS;Zimmermann,RA
通讯作者:
Zimmermann,RA
影响因子:
5.6
作者:
MOAZED, D;NOLLER, HF
通讯作者:
NOLLER, HF
DOI:
10.1146/annurev.bb.15.060186.001321
发表时间:
1986
期刊:
Annual review of biophysics and biophysical chemistry
影响因子:
--
作者:
Chiu,W
通讯作者:
Chiu,W