ValidNESs: a database of validated leucine-rich nuclear export signals

Area of Science:

• Molecular Biology
• Cell Biology
• Bioinformatics

Background:

• The chromosomal region maintenance 1 (CRM1)-mediated nuclear export pathway is crucial in cellular processes and disease.
• CRM1 cargo proteins, often identified by leucine-rich nuclear export signals (NES), are increasingly recognized for their therapeutic potential.
• Existing databases lack comprehensive, up-to-date information on CRM1 cargo proteins, with only about one-third of known proteins compiled since 2003.

Purpose of the Study:

• To create an integrated and updated database of experimentally validated NES-containing proteins.
• To provide a user-friendly web interface for predicting NES signals using the NESsential tool.
• To facilitate research on CRM1 cargo proteins and their roles in disease.

Main Methods:

• Development of the ValidNESs database, compiling 221 experimentally validated NES-containing proteins.
• Integration of the NESsential prediction tool into a web interface.
• Data curation and organization for easy access and analysis.

Main Results:

• The ValidNESs database provides an up-to-date resource for 221 NES-containing proteins.
• A web interface for the NESsential prediction tool is now available, aiding in the identification of potential CRM1 cargo.
• The database and prediction tool offer valuable resources for researchers studying nuclear export.

Conclusions:

• ValidNESs offers a comprehensive and accessible resource for studying NES-containing proteins.
• The integration of NESsential enhances the ability to identify and analyze CRM1 cargo proteins.
• This resource supports further investigation into the CRM1 pathway's role in health and disease.