کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10565036 971557 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
snRNAs as the catalysts of pre-mRNA splicing
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
snRNAs as the catalysts of pre-mRNA splicing
چکیده انگلیسی
The spliceosome, the gigantic molecular machine that performs pre-mRNA splicing in eukaryotes, contains over 200 different proteins and five RNA molecules. The central role played by the spliceosomal RNAs in splicing has led to the hypothesis that, like the ribosome, the spliceosome is an RNA-centric enzyme and a relic from the RNA world. Recent structural studies have provided the first glimpses of the structural features of spliceosomal RNAs, and mutational analyses in vivo and in vitro have uncovered new functional roles for a catalytically essential domain. An emerging model for the active site of group II introns, a closely related class of natural ribozymes, is likely to provide a wealth of insights on structure and function of the active site of the spliceosome.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Opinion in Chemical Biology - Volume 9, Issue 6, December 2005, Pages 603-608
نویسندگان
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