AMBER: AMBER7 : Hybrid macromolecule

From: Guillaume Bollot <>
Date: Mon, 13 Sep 2004 17:54:28 +0200

Dear Users,
I have an hybrid macromolecule with organic fragments and protein
fragments. Moreover, I use GAFF (organic part) and PARM99 (protein part)
force field but how to combine these two force fields in AMBER 7? Is it

Error message in Xleap after the CHECK command :
Could not find bond paramater for : C -ca
Could not find angle parameter for : C - ca -ca

Someone could help me? Thanks a lot in advance.

Bollot Guillaume, University of Geneva.

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Received on Mon Sep 13 2004 - 17:53:00 PDT
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