TBDB: a database of structurally annotated T-box riboswitch:tRNA pairs

Area of Science:

• Microbiology
• Molecular Biology
• Bioinformatics

Background:

• T-box riboswitches are crucial tRNA-binding regulatory elements in Gram-positive bacteria.
• Predicting T-box riboswitch function relies on understanding tRNA binding specificities.
• Existing resources lack comprehensive data on T-box riboswitch-tRNA interactions.

Purpose of the Study:

• To establish a centralized, open-access database for T-box riboswitch sequences and annotations.
• To facilitate the prediction of cis-regulatory activity by providing tRNA binding specificities.
• To offer a valuable resource for researchers studying bacterial gene regulation.

Main Methods:

• Compiled a large collection of T-box riboswitch sequences from diverse bacterial species.
• Performed computational predictions for riboswitch secondary structures.
• Identified specifier sequences, cognate tRNA partners, and downstream regulatory targets.

Main Results:

• Developed the T-box Riboswitch Annotation Database (TBDB) with 23,535 T-box riboswitch sequences from 3,632 bacterial species.
• TBDB includes detailed sequence, feature, and structural annotations.
• The database links T-box riboswitches to their cognate tRNAs and regulatory targets.

Conclusions:

• The TBDB is the most extensive collection of annotated T-box riboswitches to date.
• This database significantly enhances the study of bacterial gene regulation by providing critical tRNA binding information.
• TBDB serves as a key resource for advancing research in RNA biology and microbial genetics.