Peptide Utility (PU) search server: A new tool for peptide sequence search from multiple databases.

Area of Science:

• Biochemistry
• Bioinformatics
• Structural Biology

Background:

• Proteins are crucial biomolecules with significant therapeutic potential.
• Existing computational tools for protein analysis often have limitations like poor usability and data redundancy.

Purpose of the Study:

• To introduce the Peptide Utility (PU) webserver, a novel, user-friendly platform for protein sequence analysis.
• To provide a tool for searching and analyzing homologous and identical protein/peptide sequences.
• To facilitate the study of protein interactions and the design of novel therapeutic peptides.

Main Methods:

• Development of the Peptide Utility (PU) webserver with a focus on user-friendliness.
• Integration of a database of approximately 0.4 million protein sequences (structural and sequence information).
• Implementation of functionalities for searching homologous/identical sequences and analyzing protein-protein interactions using PDBSum data.

Main Results:

• The PU webserver offers both online and offline search capabilities for protein and peptide sequences.
• It enables the identification of dominant interface residues, prevalent interactions, and residue interaction preferences within protein structures.
• The tool provides access to structural and sequence information from a large dataset of 0.4 million sequences.

Conclusions:

• The PU webserver addresses limitations of previous tools by offering an intuitive interface and comprehensive analysis features.
• It serves as a valuable resource for researchers studying protein sequences and interactions.
• The webserver is expected to accelerate the design of novel therapeutic peptides and protein folds through the identification of conserved residues.