Dear amber users,
I'm trying to work with zinc protein but I got some problems during
the parametrization with tleap.
When I bound the Zn ion to the NE2 of the three histidins with the
command "bond" and saveamberparm I get this error message:
Could not find bond parameters for : NB - Zn
Could not find angle parameters for: CV - NB - ZN
Could not find angle parameters for: CR - NB - ZN
......
parameter files was not saved
I think I've to built the .prep file and/or to modify the force field
for my protein but I don't know how to do that.
Do someone can tell me if there are some tutorials about? or where to
find a reliable forcefield fo MMPs protein?
thank you very much.
Mattia
--
**-**-**-**-**-**-**-**-**-**-**-**-**
Mattia Mori, PhD Student
CERM - Centro di Risonanze Magnetiche
via L. Sacconi 6,,
50019 Sesto Fiorentino, FI
fax (+39) 055 4573914
tel (+39) 055 4573912
www.cerm.unifi.it
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Received on Sun Nov 25 2007 - 06:07:08 PST
