کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10873936 | 1074288 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The 30S ribosomal P site: a function of 16S rRNA
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
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چکیده انگلیسی
The 30S ribosomal P site serves several functions in translation. It must specifically bind initiator tRNA during formation of the 30S initiation complex; bind the anticodon stem-loop of peptidyl-tRNA during the elongation phase; and help to maintain the translational reading frame when the A site is unoccupied. Early experiments provided evidence that 16S rRNA was an important component of the 30S P site. Footprinting and crosslinking studies later implicated specific nucleotides in interactions with tRNA. The crystal structures of the 30S subunit and 70S ribosome-tRNA complexes confirmed the interactions between 16S rRNA and tRNA, but also revealed contacts between tRNA and the C-terminal tails of proteins S9 and S13. Deletion of these tails now shows that the 16S rRNA contacts alone are sufficient to support protein synthesis in living cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 579, Issue 4, 7 February 2005, Pages 855-858
Journal: FEBS Letters - Volume 579, Issue 4, 7 February 2005, Pages 855-858
نویسندگان
Harry F. Noller, Lee Hoang, Kurt Fredrick,