AMBER Archive (2008)

Subject: AMBER: disulfide bridge with ff03ua FF

From: Marcin Krol (
Date: Thu Feb 07 2008 - 08:50:16 CST


> I want to create a disulfide bridge using ua ff, but there is no CYX
> residue type. When I tried with CYS leap complained about missing
> parameters for SH-SH bond and angles. In fact, there are no such
> parameters in frcmod.ff03ua. Does it mean that I can't have disulfide
> bridges in ff03ua?
> Thanks in advance for your answers
> Marcin

Dr Marcin Krol
Biomolecular Modelling Laboratory
Cancer Research UK
London Research Institute
44 Lincoln's Inn Fields
London WC2A 3PX

Telephone: 020 7269 3033 Fax: 020 7269 3258 E-mail:

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