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TranscriptomicsProteomic analysis of murine Piwi proteins reveals a role for arginine methylation in specifying interaction with Tudor family members
In germ cells, Piwi proteins interact with a specific class of small non-coding RNAs, piwi-interacting RNAs (piRNAs). Together, these form a pathway that represses transposable elements, thus safeguarding germ cell genomes. While basic models describe the operation of piRNA pathways, neither the pr...
ORGANISM(S): Mus musculus 
2009-07-25 | E-GEOD-17319 | biostudies-arrayexpress
TranscriptomicsLoss of the Mili-interacting Tdrd1 activates transposons and alters Mili-associated small RNA profile
Piwi proteins and their associated Piwi-interacting RNAs (piRNAs) are implicated in transposon silencing in the murine germline. There is currently little information on additional proteins in the murine Piwi complex and how they might regulate the entry of transcripts that accumulate as piRNAs in t...
ORGANISM(S): Mus musculus 
2009-05-24 | E-GEOD-16023 | biostudies-arrayexpress
TranscriptomicsMIWI catalysis is required for piRNA amplification-independent LINE1 transposon silencing [microarray]
Here we show that MIWI is a small RNA-guided ribonuclease (Slicer) that requires extensive complementarity for target cleavage in vitro. Disruption of its catalytic activity in mice by a single point mutation results in male infertility and displays increased accumulation of LINE1 transposon transcr...
ORGANISM(S): Mus musculus 
2011-11-30 | E-GEOD-32180 | biostudies-arrayexpress
TranscriptomicsMIWI catalysis is required for piRNA amplification-independent LINE1 transposon silencing [deep sequencing]
Here we show that MIWI is a small RNA-guided ribonuclease (Slicer) that requires extensive complementarity for target cleavage in vitro. Disruption of its catalytic activity in mice by a single point mutation results in male infertility and displays increased accumulation of LINE1 transposon transcr...
ORGANISM(S): Mus musculus 
2011-11-30 | E-GEOD-32184 | biostudies-arrayexpress
TranscriptomicsTudor domain containing 12 (TDRD12) is essential for secondary piRNA biogenesis in mice
Piwi-interacting RNAs (piRNAs) are gonad-specific small RNAs that provide defence against transposable genetic elements called transposons. Our knowledge of piRNA biogenesis is sketchy, partly due to an incomplete inventory of the factors involved. Here, we identify Tudor domain-containing 12 (TDRD1...
ORGANISM(S): Mus musculus 
2013-11-04 | E-GEOD-50544 | biostudies-arrayexpress
TranscriptomicsA role for Fkbp6 and the chaperone machinery in piRNA amplification and transposon silencing
Epigenetic silencing of transposons by Piwi-interacting RNAs (piRNAs) constitutes an RNA-based genome defense mechanism. Piwi endonuclease action amplifies the piRNA pool by generating new piRNAs from target transcripts by a poorly understood mechanism. Here, we identified mouse Fkbp6 as a factor in...
ORGANISM(S): Bombyx mori 
2012-09-04 | E-GEOD-39203 | biostudies-arrayexpress
TranscriptomicsAnalysis of small RNAs in piRNA pathway mutant mouse testes
Piwi-interacting RNAs are 25-32 nt small RNAs bound to Piwi proteins. To know the steps where factors involved in the piRNA biogenesis (MILI, MIWI2, ZUC (MitoPLD), MVH) work, we sequenced small RNAs from mutant mouse testes and analyzed piRNAs. Examination of small RNAs in testes of mutant mouse
ORGANISM(S): Mus musculus 
2010-05-27 | E-GEOD-20327 | biostudies-arrayexpress
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