Kei Kitahara

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The wobble base of Escherichia coli elongator tRNA(Met) is modified to N(4)-acetylcytidine (ac(4)C), which is thought to ensure the precise recognition of the AUG codon by preventing misreading of near-cognate AUA codon. By employing genome-wide screen of uncharacterized genes in Escherichia coli ('ribonucleome analysis'), we found the ypfI gene, which we(More)
Modifications of rRNAs are clustered in functional regions of the ribosome. In Helix 74 of Escherichia coli 23S rRNA, guanosines at positions 2069 and 2445 are modified to 7-methylguanosine(m(7)G) and N(2)-methylguanosine(m(2)G), respectively. We searched for the gene responsible for m(7)G2069 formation, and identified rlmL, which encodes the(More)
The emergence of social networking services on the Internet has facilitated communication between people located far away from each other. Through a variety of Web services, people can get together on a virtual platform to video chat, edit documents, and engage in other activities; however, neighboring residents do not always have a chance to meet each(More)
Ribosomal protein L2 is a highly conserved primary 23S rRNA-binding protein. L2 specifically recognizes the internal bulge sequence in Helix 66 (H66) of 23S rRNA and is localized to the intersubunit space through formation of bridge B7b with 16S rRNA. The L2-binding site in H66 is highly conserved in prokaryotic ribosomes, whereas the corresponding site in(More)
The emergence of the Internet has facilitated communication between people located far away from each other. Through a variety of Web services, people can virtually get together to video chat, edit documents, and engage in other activities; however, people who live close to each other do not always have a chance to meet their neighbours face-to-face. In our(More)
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