AMBER Archive (2009)

Subject: [AMBER] Warning: No sp2 improper torsion term for

From: Alan (alanwilter_at_gmail.com)
Date: Fri Jun 05 2009 - 07:26:55 CDT

Hi There,

I would to understand that warning below that appears only when I use
verbosity 1 with leap. The leap commands follow:

verbosity 1
source leaprc.ff99SB
prot = loadpdb ProteinAmber.pdb
solvatebox prot TIP3PBOX 10.0
addions prot Cl- 4
saveamberparm prot Protein.prmtop Protein.inpcrd
savepdb prot ProteinNAMDpdb
quit

Building improper torsion parameters.
 ** Warning: No sp2 improper torsion term for C*-CN-CB-CA
        atoms are: CG CE2 CD2 CE3
 ** Warning: No sp2 improper torsion term for NA-CA-CN-CB
        atoms are: NE1 CZ2 CE2 CD2

Many thanks in advance,Alan 

-- 
Alan Wilter S. da Silva, D.Sc. - CCPN Research Associate
Department of Biochemistry, University of Cambridge.
80 Tennis Court Road, Cambridge CB2 1GA, UK.
>>http://www.bio.cam.ac.uk/~awd28<<
_______________________________________________
AMBER mailing list
AMBER_at_ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber