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High Quality Content by WIKIPEDIA articles! Alternative splicing is a process by which the exons of the RNA produced by transcription of a gene (a primary gene transcript or pre-mRNA) are reconnected in multiple ways during RNA splicing. The resulting different mRNAs may be translated into different protein isoforms; thus, a single gene may code for multiple proteins. Alternative splicing occurs as a normal phenomenon in eukaryotes, where it greatly increases the diversity of proteins that can be encoded by the genome; in humans, over 80% of genes are alternatively spliced. There are numerous modes of alternative splicing observed, of which the most common is exon skipping. In this mode, a particular exon may be included in mRNAs under some conditions or in particular tissues, and omitted from the mRNA in others. The production of alternatively spliced mRNAs is regulated by a system of trans-acting proteins that bind to cis-acting sites on the pre-mRNA itself. Such proteins include splicing activators that promote the usage of a particular splice site, and splicing repressors that reduce the usage of a particular site.

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Zařazení knihy Knihy v angličtině Mathematics & science Biology, life sciences

• Plný název: Alternative Splicing
• Autor: Frederic P. Miller
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 76
• EAN: 9786130243562
• ISBN: 6130243561
• ID: 04337806
• Nakladatelství: OmniScriptum
• Hmotnost: 130 g
• Rozměry: 220 × 150 × 5 mm
• Datum vydání: 08. December 2009

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