Journal
INTERNATIONAL JOURNAL OF MEDICAL MICROBIOLOGY
Volume 302, Issue 4-5, Pages 221-224Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijmm.2012.07.004
Keywords
Trypanosoma; snRNP; Spliceosome; Splicing
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Funding
- Deutsche Forschungsgemeinschaft [DFG Bi 316/13, Bi 316/17, IRTG1384]
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The parasitic unicellular trypanosomatids are responsible for several fatal diseases in humans and live-stock. Regarding their biochemistry and molecular biology, they possess a multitude of special features such as polycistronic transcription of protein-coding genes. The resulting long primary transcripts need to be processed by coupled trans-splicing and polyadenylation reactions, thereby generating mature mRNAs. Catalyzed by a large ribonucleoprotein complex termed the spliceosome, trans-splicing attaches a 39-nucleotide leader sequence, which is derived from the Spliced Leader (SL) RNA, to each protein-coding gene. Recent genome-wide studies demonstrated that alternative trans-splicing increases mRNA and protein diversity in these organisms. In this mini-review we give an overview of the current state of research on trans-splicing. (C) 2012 Elsevier GmbH. All rights reserved.
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