antechamber

What problem does it solve?

Automates parameterization of small organic molecules and non-standard residues for AMBER workflows by automating atom typing, charge generation or import, and preparation of topology-ready inputs.

Core Features & Use Cases

• Automates atom and bond typing for GAFF/AMBER-compatible chemical space.
• Generates or reads partial charges, and converts structures to mol2 and prepi formats.
• Prepares LEaP-ready topology inputs for downstream AMBER workflows, with common use cases including ligands and modified residues.
• Use Case: Parameterize a ligand to integrate into an AMBER simulation with compatible topology and charge data.

Quick Start

Run antechamber on your input structure to generate GAFF atom types and partial charges for AMBER workflows.