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antechamber

Generate GAFF/GA2 parameterizations and AM1-BCC or RESP charges for AMBER/LAMMPS ligands.

181|20|Updated Apr 29, 2026
Search Tags:#antechamber#ambertools#md-simulation#ligand-parameterization#gaff2#am1-bcc#resp
One-click install
npx skills add https://github.com/Hello-QM/catgo-LRG --skill antechamber-hello-qm
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: antechamber
Source: https://github.com/Hello-QM/catgo-LRG/tree/main/server/catgo/workflow/skills/molecular/antechamber
Command: npx skills add https://github.com/Hello-QM/catgo-LRG --skill antechamber-hello-qm

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Antechamber automates molecular force field parameterization, generating GAFF/GAFF2 parameters and AM1-BCC or RESP charges for AMBER or LAMMPS classical MD simulations.

Core Features & Use Cases

  • GAFF/GAFF2 parameterization for small molecules.
  • AM1-BCC or RESP charges generation for accurate electrostatics.
  • Topology and coordinate files creation (prmtop and inpcrd) for AMBER or LAMMPS.

Quick Start

Parameterize a small molecule with antechamber using your input structure to generate GAFF2 parameters and AM1-BCC or RESP charges.

Frequently Asked Questions about antechamber

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I parameterize a small molecule with GAFF2 for AMBER MD simulations?▼

To parameterize a small molecule with GAFF2 for AMBER, provide an input structure file like mol2 or pdb to generate GAFF2 parameters, AM1-BCC or RESP charges, and output prmtop and inpcrd files.

What is the difference between AM1-BCC and RESP charges in ligand parameterization?▼

AM1-BCC and RESP are both charge generation methods for ligand parameterization. AM1-BCC offers faster semi-empirical charge approximation, while RESP provides highly accurate electrostatics derived from quantum mechanical calculations.

Do I need AmberTools installed to generate GAFF2 parameters and topology files?▼

Yes, you need AmberTools installed and accessible in your system PATH. The workflow relies specifically on antechamber, parmchk2, and tleap executables to generate GAFF2 parameters and topology files.

Can I use antechamber to generate LAMMPS input files from a mol2 structure?▼

Yes, you can use antechamber to generate LAMMPS input files from a mol2 structure. The workflow applies GAFF2 parameters and AM1-BCC or RESP charges to output compatible topology and coordinate files for LAMMPS.

What input file formats are supported for small molecule parameterization?▼

Supported input file formats for small molecule parameterization include mol2 and pdb structures. These files are processed to generate GAFF or GAFF2 parameters alongside AM1-BCC or RESP charges.

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