MPEx

MPEx predicts transmembrane regions and evaluates effects of sequence mutations using hydropathy plotting with experimentally derived physical and biological hydrophobicity scales to analyze membrane protein topology and support design of membrane-active peptides.

Key Features:

• Interactive Hydropathy Plotting: Generates hydropathy plots to identify potential transmembrane regions within protein sequences using experimentally validated hydrophobicity scales.
• Hydrophobicity Scales: Utilizes physical and biological hydrophobicity scales derived from experimental data for transmembrane region identification.
• Mutation Analysis: Examines effects of sequence mutations on membrane protein topology and their impact on protein function and stability within the lipid bilayer.
• Peptide Design Assistance: Provides functionalities to aid in the design of membrane-active peptides.

Scientific Applications:

• Membrane protein topology prediction: Predicts transmembrane segments and assists in annotating membrane-spanning regions from sequence data.
• Mutation impact analysis: Assesses how amino acid substitutions alter predicted membrane insertion, topology, and potential effects on stability and function.
• Peptide design and drug discovery: Supports design of membrane-active peptides and applications in drug discovery and development.

Methodology:

The methodology uses hydropathy plotting techniques incorporating thermodynamic principles and biological data, leveraging experimentally derived physical and biological hydrophobicity scales.