Constitutive patterns of gene expression regulated by RNA-binding proteins

Area of Science:

• Molecular Biology
• Bioinformatics

Background:

• RNA-binding proteins (RBPs) are crucial for regulating RNA synthesis, folding, translocation, assembly, and clearance.
• A significant number of proteins interact with RNA, yet many RBPs have uncharacterized interaction partners.

Purpose of the Study:

• To characterize the interaction partners of RNA-binding proteins.
• To explore the functional roles of protein-RNA interactions in cellular processes.
• To develop a tool for investigating protein-RNA interaction networks.

Main Methods:

• Combined prediction of ribonucleoprotein interactions using catRAPID calculations.
• Analyzed protein and RNA expression profiles from human tissues.
• Integrated in silico and ex vivo data.

Main Results:

• Identified strong interaction propensities for both positively and negatively correlated expression patterns.
• Unraveled two major types of protein-RNA interactions: positively correlated patterns associated with cell cycle control and negatively correlated patterns linked to survival, growth, and differentiation.
• Developed the catRAPID express web server to facilitate the investigation of protein-RNA interactions and expression networks.

Conclusions:

• RNA-binding proteins play a significant role in regulating proliferation and differentiation.
• The catRAPID express tool aids future experimental studies on protein-RNA interactions.