Identification of Mouse piRNA Pathway Components Using Anti-MIWI2 Antibodies.
GERMLINE STEM CELLS, 2ND EDITION(2017)
摘要
The mouse testis has served as a popular model system to study a wide range of biological processes, including germ cell development, meiosis, epigenetic changes of chromatin, transposon silencing, and small RNA-mediated epigenetic modifications. PIWI-interacting RNAs (piRNAs) are a class of small RNAs that are almost exclusively expressed in animal gonads. They repress transposons by forming effector complexes with PIWI proteins to maintain genome integrity of the germline. Here we describe detailed procedures of how to produce monoclonal antibodies against a mouse nuclear PIWI protein, MIWI2, which functions in de novo DNA methylation of target transposon loci. We then describe how to use the antibodies to isolate associated complexes and to detect MIWI2 immunohistochemically.
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关键词
Inclusion body,MIWI2,Monoclonal antibody,Mouse embryonic testes,piRNA
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