This repository contains the force field files for the additive CHARMM36 force field.
The current version is dated February, 2026.
This repository was initially made publicly available on February 7, 2025 and was last updated on February 16, 2026.
Alex MacKerell
University of Maryland, Baltimore
alex@outerbanks.umaryland.edu
Olgun Guvench
University of New England
oguvench@une.edu
Jing Huang
Westlake University
huangjing@westlake.edu.cn
Sairam Mallajosyula
IIT Gandhinagar
msairam@iitgn.ac.in
Justin Lemkul
Virginia Tech
jalemkul@vt.edu