Tag Archives: Prader-Willi syndrome

Unusual Processing Generates SPA lncRNAs that Sequester Multiple RNA Binding Proteins

lncRNA

Researchers from the Shanghai Institute of Biochemistry and Cell Biology identify a type of polycistronic transcript-derived long noncoding RNAs (lncRNAs) that are 5′ small nucleolar RNA (snoRNA) capped and 3′ polyadenylated (SPAs). SPA processing is associated with nascent mRNA 3′ processing and kinetic competition between XRN2 trimming and Pol II elongation. Following cleavage/polyadenylation of its upstream gene, the downstream uncapped pre-SPA ...

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Species-specific alternative splicing leads to unique expression of sno-lncRNAs

Intron-derived long noncoding RNAs with snoRNA ends (sno-lncRNAs) are highly expressed from the imprinted Prader-Willi syndrome (PWS) region on human chromosome 15. However, sno-lncRNAs from other regions of the human genome or from other genomes have not yet been documented. By exploring non-polyadenylated transcriptomes from human, rhesus and mouse, researchers at the Shanghai Institutes for Biological Sciences have systematically annotated ...

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Species-specific alternative splicing leads to unique expression of sno-lncRNAs

Intron-derived long noncoding RNAs with snoRNA ends (sno-lncRNAs) are highly expressed from the imprinted Prader-Willi syndrome (PWS) region on human chromosome 15. However, sno-lncRNAs from other regions of the human genome or from other genomes have not yet been documented. By exploring non-polyadenylated transcriptomes from human, rhesus and mouse, researchers at the Shanghai Institutes for Biological Sciences have systematically annotated ...

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Species-specific alternative splicing leads to unique expression of sno-lncRNAs

Intron-derived long noncoding RNAs with snoRNA ends (sno-lncRNAs) are highly expressed from the imprinted Prader-Willi syndrome (PWS) region on human chromosome 15. However, sno-lncRNAs from other regions of the human genome or from other genomes have not yet been documented. By exploring non-polyadenylated transcriptomes from human, rhesus and mouse, we have systematically annotated sno-lncRNAs expressed in all three species. In ...

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A Prader-Willi locus lncRNA cloud modulates diurnal genes and energy expenditure

lncRNA

Prader-Willi syndrome (PWS), a genetic disorder of obesity, intellectual disability and sleep abnormalities, is caused by loss of noncoding RNAs on paternal chromosome 15q11-q13. The imprinted minimal PWS locus encompasses a long non-coding RNA (lncRNA) transcript processed into multiple SNORD116 small nucleolar RNAs (snoRNAs) and the spliced exons of the host gene, 116HG. However, both the molecular function and disease ...

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