Order, dynamics and metal-binding in the lead-dependent ribozyme.
Order, dynamics and metal-binding in the lead-dependent ribozyme.
复制标题
铅依赖性核酶的顺序、动力学和金属结合。
DOI:
--
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发表时间:
1998
影响因子:
5.6
通讯作者:
A. Pardi
中科院分区:
文献类型:
--
作者:
P. Legault;C. G. Hoogstraten;E. Metlitzky;A. Pardi
The in vitro selected lead-dependent ribozyme is among the smallest and simplest of the known catalytic RNA motifs and has a unique metal ion specificity for divalent lead. The conformation and dynamics of this ribozyme are analyzed here by NMR and chemical probing experiments. Complete assignments of the 1H, 13C, and 15N resonances have been made, and the NMR chemical shift changes in the presence of Pb2+, Mg2+ or high concentrations of Na+ show that there is no significant structural change upon addition of either activating (Pb2+) or inhibitory (Mg2+) divalent ions. The 13C NMR relaxation data indicate substantial dynamic fluctuations on various time-scales for active-site residues in this ribozyme. The combination of chemical probing and NMR experiments reveals a picture of the active site for the lead-dependent ribozyme that has both ordered and dynamic features.
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影响因子:
2.9
作者:
Pan,T;Dichtl,B;Uhlenbeck,OC
通讯作者:
Uhlenbeck,OC
影响因子:
2.9
作者:
Perrotta,AT;Been,MD
通讯作者:
Been,MD
DOI:
10.1073/pnas.94.26.14355
发表时间:
1997-12-23
影响因子:
11.1
作者:
Frank, DN;Pace, NR
通讯作者:
Pace, NR
DOI:
10.1126/science.8009223
发表时间:
1994
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Prudent,JR;Uno,T;Schultz,PG
通讯作者:
Schultz,PG
影响因子:
--
作者:
Pardi,A
通讯作者:
Pardi,A