An antibiotic-binding motif of an RNA fragment derived from the A-site-related region of Escherichia coli 16S rRNA.
An antibiotic-binding motif of an RNA fragment derived from the A-site-related region of Escherichia coli 16S rRNA.
复制标题
来自大肠杆菌 16S rRNA A 位点相关区域的 RNA 片段的抗生素结合基序。
作者:
H. Miyaguchi;H. Narita;K. Sakamoto;S. Yokoyama
A small RNA derived from the decoding region of Escherichia coli 16S rRNA can bind to antibiotics of aminoglycosides (neomycin and paromomycin) that act on the small ribosomal subunit [Purohit,P. and Stern,S. (1994) Nature, 370, 659-662]. In the present study, the P-site subdomain was removed from this decoding region RNA to construct a 27mer RNA (designated as ASR-27), which includes the A-site-related region (positions 1402-1412 and 1488-1497) of 16S rRNA. Footprint experiments with dimethyl sulfate as a chemical probe indicated that the ASR-27 RNA can interact with the neomycin family in the same manner as the decoding region RNA. A mutagenesis analysis of the ASR-27 RNA revealed that paromomycin binding of ASR-27 involves the C1407.G1494 and C1409-G1491 base pairs, and the internal loop comprising A1408 and the nucleotides in positions 1492-1493, located between the two C.G base pairs. In addition, a G or U in position 1495, and base pairing between positions 1405 and 1496 are also involved. These structural features were found in a viral RNA element, the Rev-binding site of human immunodeficiency virus type-1, which may explain why neomycin can bind to this viral RNA.
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DOI:
--
发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Li,M;Tzagoloff,A;Underbrink-Lyon,K;Martin,NC
通讯作者:
Martin,NC
影响因子:
56.9
作者:
U. Ahsen;H. Noller
通讯作者:
U. Ahsen;H. Noller
DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Spangler,EA;Blackburn,EH
通讯作者:
Blackburn,EH
影响因子:
56.9
作者:
Kevin M. Weeks;Donald M. Crothers
通讯作者:
Kevin M. Weeks;Donald M. Crothers
影响因子:
14.9
作者:
Thomas,CL;Gregory,RJ;Winslow,G;Muto,A;Zimmermann,RA
通讯作者:
Zimmermann,RA