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The ?CstF-64 polyadenylation protein controls genome expression in testis.


ABSTRACT: The ?CstF-64 polyadenylation protein (gene symbol Cstf2t) is a testis-expressed orthologue of CstF-64. Mice in which Cstf2t was knocked out had a phenotype that was only detected in meiotic and postmeiotic male germ cells, giving us the opportunity to examine CstF-64 function in an isolated developmental system. We performed massively parallel clonally amplified sequencing of cDNAs from testes of wild type and Cstf2t(-/-) mice. These results revealed that loss of ?CstF-64 resulted in large-scale changes in patterns of genome expression. We determined that there was a significant overrepresentation of RNAs from introns and intergenic regions in testes of Cstf2t(-/-) mice, and a concomitant use of more distal polyadenylation sites. We observed this effect particularly in intronless small genes, many of which are expressed retroposons that likely co-evolved with ?CstF-64. Finally, we observed overexpression of long interspersed nuclear element (LINE) sequences in Cstf2t(-/-) testes. These results suggest that ?CstF-64 plays a role in 3' end determination and transcription termination for a large range of germ cell-expressed genes.

SUBMITTER: Li W 

PROVIDER: S-EPMC3482194 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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The τCstF-64 polyadenylation protein controls genome expression in testis.

Li Wencheng W   Yeh Hsiang-Jui HJ   Shankarling Ganesh S GS   Ji Zhe Z   Tian Bin B   MacDonald Clinton C CC   MacDonald Clinton C CC  

PloS one 20121026 10


The τCstF-64 polyadenylation protein (gene symbol Cstf2t) is a testis-expressed orthologue of CstF-64. Mice in which Cstf2t was knocked out had a phenotype that was only detected in meiotic and postmeiotic male germ cells, giving us the opportunity to examine CstF-64 function in an isolated developmental system. We performed massively parallel clonally amplified sequencing of cDNAs from testes of wild type and Cstf2t(-/-) mice. These results revealed that loss of τCstF-64 resulted in large-scale  ...[more]

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