The structure of ribosomal protein S5 reveals sites of interaction with 16S rRNA
The structure of ribosomal protein S5 reveals sites of interaction with 16S rRNA
复制标题
核糖体蛋白 S5 的结构揭示了与 16S rRNA 相互作用的位点
作者:
Venki Ramakrishnan;Venki Ramakrishnan;S. White
UNDERSTANDING the process whereby the ribosome translates the genetic code into protein molecules will ultimately require high-resolution structural information, and we report here the first crystal structure of a protein from the small ribosomal subunit. This protein, S5, has a molecular mass of 17,500 and is highly conserved in all lifeforms1–4. The molecule contains two distinct α/β domains that have structural similarities to several other proteins that are components of ribonucleoprotein complexes. Mutations in S5 result in several phenotypes which suggest that S5 may have a role in translational fidelity and translocation. These include ribosome ambiguity or ram5, reversion from streptomycin dependence6 and resistance to spectinomycin6. Also, a cold-sensitive, spectinomycin-resistant mutant of S5 has been identified which is defective in initiation7. Here we show that these mutations map to two distinct regions of the molecule which seem to be sites of interaction with ribosomal RNA. A structure/function analysis of the molecule reveals discrepancies with current models8,9 of the 308 subunit.
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影响因子:
2.9
作者:
Lambert,JM;Boileau,G;Cover,JA;Traut,RR
通讯作者:
Traut,RR
DOI:
10.1073/pnas.88.6.2495
发表时间:
1991-03-01
影响因子:
11.1
作者:
HOFFMAN, DW;QUERY, CC;KEENE, JD
通讯作者:
KEENE, JD
影响因子:
5.6
作者:
Stern,S;Weiser,B;Noller,HF
通讯作者:
Noller,HF
DOI:
10.1101/sqb.1987.052.01.075
发表时间:
1987
期刊:
Cold Spring Harbor symposia on quantitative biology
影响因子:
--
作者:
Nomura,M
通讯作者:
Nomura,M
影响因子:
56.9
作者:
STERN, S;POWERS, T;NOLLER, HF
通讯作者:
NOLLER, HF