Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature.

Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature. Research Abstract Details 

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Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature. Abstract Text:

K Watanabe,H Himeno,T Ohta,

An extreme thermophile, Thermus thermophilus HB 8, contains two types of tRNAs, T- and S2T-containing tRNAs. Their relative content changes depend on the growth temperature of the bacterial cells (1-3). To elucidate the reason why the extreme thermophile possesses the two types of tRNAs, an attempt was made to clarify how these tRNAs are utilized in in vivo protein synthetic systems of the bacteria cultured at different temperatures. First, a method was developed to isolate active polysomes from the thermophile cells cultured at 55 degrees C, 65 degrees C, and 77 degrees C. Then, tRNAs were separated from the polysomes and the T- and S2T-contents of the tRNAs were determined by HPLC. The relative content of S2T-tRNAs in the polysomes from 77 degrees C cells was much higher than that in bulk tRNAs from whole cells cultured at the same temperature, but the situation was reversed in 50 degrees C cells. These results clearly show that the protein synthetic systems of the thermophile have some selection mechanism to utilize either T- or S2T-containing tRNAs preferentially depending on the environmental temperature.

Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature. Publishing Authors By Initials

K Watanabe,H Himeno,T Ohta,

For similar heterocyclic compounds: heterocyclic compounds, 1-ring: pyrimidines: pyrimidine nucleosides: uridine research abstracts see: heterocyclic compounds: heterocyclic compounds, 1-ring: pyrimidines: pyrimidine nucleosides: uridine research

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Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of biochemistry

VOLUME: 96

Page Numbers: 1625-32

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Nov

YEAR: 1984

Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature. Keywords Mesh Terms:

KEYWORDS: Uridine

MESH TERMS: metabolism

Chemical & Substance for Abstract: Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature. Information

Substance Name: RNA, Transfer

Registry Number: 9014-25-9

Grant and Affiliation Information for Selective utilization of 2-thioribothymidine- and ribothymidine-containing tRNAs by the protein synthetic systems of Thermus thermophilus HB 8 depending on the environmental temperature.

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Country: JAPAN

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MEDLINETA: J Biochem

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