Increased isoleucine acceptance by sulfur-deficient transfer RNA from Escherichia coli
نویسندگان
چکیده
منابع مشابه
Isoleucine and Valine Metabolism of Escherichia Coli
In the preceding publication (1) mention has been made of the syntrophism existing between the mutant strains llA16 and 2OA19 of Escherichia COG. These mutants, requiring isoleucine and isoleucine plus valine respectively, were able to grow together on a minimal agar plate, free of amino acids, which would not support the growth of either mutant alone. The nature of this syntrophism forms the s...
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A defective varphi80 transducing phage has been isolated that carries a small section of the E. coli chromosome from the region near argH (77 min). This phage contains three E. coli tRNA genes, termed glyTsu(+) (36), tyrT, and thrT. These genes specify the structures of tRNA(2) (Gly) (su(+) (36)) tRNA(2) (Tyr), and tRNA(3) (Thr), respectively. Induction of a single lysogen bearing this phage br...
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The study of tRNA molecules altered by a mutational event can lead to information in 3 important areas: (a) structure-function relationships in tRNA biochemistry; (ft) the genetics of tRNA; and (c) the physiological role of tRNA-isoaccepting species. For example, the elucidation of the structural alteration in a mutant tRNA species which reacts appreciably more slowly than normal tRNA in the en...
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Transfer RNAs isolated from Escherichia coli B grown in the presence of 2-thiouracil are deficient in pseudouridine. Much of this deficiency is from the T psi C region, which has only about 50% of its normal pseudouridine content. The other modified nucleoside from this region, ribothymidine, is reduced by only about 10%. Studies showed that 2-thiouracil is incoproated into the RNA of E. coli d...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1976
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/3.8.2129