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Updated: Jul 29, 2025

Method for the Isolation and Identification of mRNAs, microRNAs and Protein Components of Ribonucleoprotein Complexes from Cell Extracts using RIP-Chip

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Published on: September 29, 2012

Detecting Cell Compartment-Specific PRC2-RNA Interactions via UV-RIP.

Francesco Della Valle¹, Peng Liu², Gabriele Morelli²

¹King Abdullah University of Science and Technology, Biological and Environmental Sciences and Engineering Division, KAUST Environmental Epigenetics Research Program, Thuwal, Kingdom of Saudi Arabia. francescodellavalle@kaust.edu.sa.

Methods in Molecular Biology (Clifton, N.J.)

|May 22, 2023

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Polycomb Repressive Complex 2 (PRC2) interactions with long non-coding RNAs (lncRNAs) are crucial for cellular reprogramming. A new technique reveals specific lncRNA interactions with PRC2 within cellular compartments.

Area of Science:

Epigenetics
Molecular Biology
Cellular Reprogramming

Background:

Polycomb Repressive Complex 2 (PRC2) activity is vital for suppressing lineage-specific genes during cellular reprogramming, enabling pluripotency.
PRC2 complex assembly and chromatin recruitment depend on interactions with RNAs.
Long non-coding RNAs (lncRNAs) are implicated in silencing lineage-specific genes and regulating chromatin modifiers during reprogramming.

Purpose of the Study:

To investigate the specific interactions between lncRNAs and PRC2 during cellular reprogramming.
To determine if PRC2-lncRNA interactions occur in distinct cellular compartments.
To understand the role of lncRNA-PRC2 interactions in PRC2 stability and chromatin activity.

Main Methods:

Utilized a compartment-specific UV-Radiation-Ultraviolet Crosslinking and Pulldown (UV-RIP) technique.

Keywords:

Cell compartments PRC2 Reprogramming UV-RIP lncRNAs

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Last Updated: Jul 29, 2025

Method for the Isolation and Identification of mRNAs, microRNAs and Protein Components of Ribonucleoprotein Complexes from Cell Extracts using RIP-Chip

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This method avoids indirect interactions caused by chemical crosslinkers or non-stringent native conditions.

The technique allows for the analysis of interactions within specific subcellular compartments.

Main Results:

The study provides insights into the precise nature of lncRNA interactions with PRC2.
It elucidates the specificity of these interactions and their impact on PRC2 stability and activity.
The findings indicate whether PRC2-lncRNA interactions are localized to particular cellular compartments.

Conclusions:

Compartment-specific UV-RIP is a valuable method for studying RNA-protein interactions in situ.
Understanding lncRNA-PRC2 interactions is key to deciphering epigenetic memory resetting and pluripotency.
This research lays the groundwork for further investigations into the functional significance of subcellular lncRNA-protein interactions.