Recent Studies of RNase P
Recent Studies of RNase P
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RNase P 的最新研究
DOI:
10.1128/9781555818333.ch6
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发表时间:
1995
期刊:
影响因子:
4.5
通讯作者:
L. Kirsebom
中科院分区:
文献类型:
--
作者:
S. Altman;S. Talbot;L. Kirsebom
This chapter is primarily a progress report on work with the enzyme from Escherichia coli. RNase P, the endonuclease responsible for the biosynthesis of the 5' termini of mature tRNA, is a ribonucleoprotein. The chapter primarily focuses on relationships between the structure and function of the subunits of RNase P, as determined from studies with the enzyme from eubacterial sources. Two important goals of current research on RNase P are identification of the active site of the enzyme and elucidation of the details of the chemical reaction governed by it. Several lines of evidence have implicated the region in M1 RNA that contains at least nucleotides 60 to 92, 230 to 260, and 290 to 360 as being essential for catalysis. The evidence comes from analysis of deletion mutants, studies of the binding of both individual tRNA precursors and the protein cofactor to M1 RNA, and studies of the binding of divalent metal ions to M1 RNA. Some point mutations that significantly affect the activity of M1 RNA are also located in these regions. A summary of these results is shown in the chapter. The protein cofactor of RNase P from E. coli (C5 protein) is a highly basic molecule of 119 amino acids, with a molecular mass of 13,800 daltons.
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DOI:
10.1126/science.3122322
发表时间:
1988
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Reich,C;Olsen,GJ;Pace,B;Pace,NR
通讯作者:
Pace,NR
DOI:
10.1126/science.2443980
发表时间:
1987
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
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通讯作者:
Altman,S
DOI:
10.1016/s0021-9258(18)88920-7
发表时间:
1985-05
期刊:
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影响因子:
--
作者:
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通讯作者:
C. Doersen;C. Guerrier-Takada;S. Altman;G. Attardi
影响因子:
56.9
作者:
GOLD, HA;TOPPER, JN;CRAFT, J
通讯作者:
CRAFT, J
影响因子:
4.4
作者:
S. Altman;D. Wesolowski;R. S. Puranam
通讯作者:
S. Altman;D. Wesolowski;R. S. Puranam