RNA Processing and Export
TL;DR: The sum of protein factors that stay with the mRNA as a result of processing is modified over the life of the transcript, conferring significant regulation to its expression.
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Abstract: Messenger RNAs undergo 5' capping, splicing, 3'-end processing, and export before translation in the cytoplasm. It has become clear that these mRNA processing events are tightly coupled and have a profound effect on the fate of the resulting transcript. This processing is represented by modifications of the pre-mRNA and loading of various protein factors. The sum of protein factors that stay with the mRNA as a result of processing is modified over the life of the transcript, conferring significant regulation to its expression.
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TL;DR: The results of an international collaboration to produce and make freely available a draft sequence of the human genome are reported and an initial analysis is presented, describing some of the insights that can be gleaned from the sequence.
Alternative Isoform Regulation in Human Tissue Transcriptomes
Eric T. Wang,Rickard Sandberg,Rickard Sandberg,Shujun Luo,Irina Khrebtukova,Lu Zhang,Christine Mayr,Stephen F. Kingsmore,Gary P. Schroth,Christopher B. Burge +9 more
TL;DR: An in-depth analysis of 15 diverse human tissue and cell line transcriptomes on the basis of deep sequencing of complementary DNA fragments yielding a digital inventory of gene and mRNA isoform expression suggested common involvement of specific factors in tissue-level regulation of both splicing and polyadenylation.
The Spliceosome: Design Principles of a Dynamic RNP Machine
TL;DR: The spliceosome exhibits exceptional compositional and structural dynamics that are exploited during substrate-dependent complex assembly, catalytic activation, and active site remodeling in the pre-mRNAs.
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Listening to silence and understanding nonsense: exonic mutations that affect splicing
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Nascent RNA Sequencing Reveals Widespread Pausing and Divergent Initiation at Human Promoters
TL;DR: Global run-on sequencing, GRO-seq, shows that peaks of promoter-proximal polymerase reside on ∼30% of human genes, transcription extends beyond pre-messenger RNA 3′ cleavage, and antisense transcription is prevalent.