[AMBER] "Incomplete Improper Torsion line" error

From: Jose Borreguero <borreguero.gmail.com>
Date: Wed, 10 Jul 2013 17:51:37 -0400

Dear amber users,

I am trying to load a pcy file in tleap:
>loadAmberParams myfile.pcy

I get the following errors:
Unknown keyword:
 in parameter file. Perhaps a format error?
WARNING: incomplete Improper Torsion line:
CT N* C CM 1 180. 2.
Unknown keyword: CT-N*-CB-C in parameter file. Perhaps a format error?
Unknown keyword: CT-OS-C -C in parameter file. Perhaps a format error?
....(more errors)

These are the offending lines in the file:
IMPROPER
X -X -C -O 10.5 180. 2.
CT-N*-C -CM 1 180. 2.
CT-N*-CB-CK 1 180. 2.
CT-OS-C -CA 1 180. 2.
....

Please, can you help me here? Also, what are the differences between a .pcy
file and, say, a frcmod file?

-Jose
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Received on Wed Jul 10 2013 - 15:00:02 PDT
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