Human proteins that interact with RNA/DNA hybrids
IX Wang, C Grunseich, J Fox, J Burdick, Z Zhu… - Genome …, 2018 - genome.cshlp.org
Genome research, 2018•genome.cshlp.org
RNA/DNA hybrids form when RNA hybridizes with its template DNA generating a three-
stranded structure known as the R-loop. Knowledge of how they form and resolve, as well as
their functional roles, is limited. Here, by pull-down assays followed by mass spectrometry,
we identified 803 proteins that bind to RNA/DNA hybrids. Because these proteins were
identified using in vitro assays, we confirmed that they bind to R-loops in vivo. They include
proteins that are involved in a variety of functions, including most steps of RNA processing …
stranded structure known as the R-loop. Knowledge of how they form and resolve, as well as
their functional roles, is limited. Here, by pull-down assays followed by mass spectrometry,
we identified 803 proteins that bind to RNA/DNA hybrids. Because these proteins were
identified using in vitro assays, we confirmed that they bind to R-loops in vivo. They include
proteins that are involved in a variety of functions, including most steps of RNA processing …
RNA/DNA hybrids form when RNA hybridizes with its template DNA generating a three-stranded structure known as the R-loop. Knowledge of how they form and resolve, as well as their functional roles, is limited. Here, by pull-down assays followed by mass spectrometry, we identified 803 proteins that bind to RNA/DNA hybrids. Because these proteins were identified using in vitro assays, we confirmed that they bind to R-loops in vivo. They include proteins that are involved in a variety of functions, including most steps of RNA processing. The proteins are enriched for K homology (KH) and helicase domains. Among them, more than 300 proteins preferred binding to hybrids than double-stranded DNA. These proteins serve as starting points for mechanistic studies to elucidate what RNA/DNA hybrids regulate and how they are regulated.
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