pepstrmod

pepstrmod predicts tertiary structures of small peptides (7–25 residues), including peptides containing natural, non‑natural, and modified amino acids, to support peptide structural analysis.

Key Features:

• Peptide length range: Predicts structures for peptides of 7–25 amino acid residues.
• Force fields: Applies physics-based force fields to model inter-residue interactions.
• Molecular dynamics simulation: Employs molecular dynamics to probe structural stability and flexibility.
• GROMACS integration: Uses GROMACS for conducting molecular dynamics simulations.
• Non‑natural and modified amino acids: Handles peptides containing non-natural and chemically modified amino acids.

Scientific Applications:

• Benchmarking and validation: Evaluated on three Protein Data Bank (PDB)-derived datasets (natural, non-natural, and modified amino acids) with reported backbone RMSD between 3.81 and 4.05 Å.
• Drug discovery and structural biology: Supports high-throughput analysis and investigation of peptide structural dynamics relevant to drug discovery and structural biology studies.

Methodology:

Uses physics-based force fields and molecular dynamics simulations implemented with GROMACS; evaluation employed PDB-derived datasets and backbone RMSD (3.81–4.05 Å).