[AMBER] CHAMBER and CMAP error using new c36 FF

From: Jun Feng <jufeng.mail.wvu.edu>
Date: Mon, 11 Apr 2016 13:18:17 -0400

Hi,

I use the most recent CHARMM force field downloaded from Dr. Mackerell's
website named toppar_c36_feb16.tgz (a modified C36 protein parameter set)
to generate psf. I tried to use CHAMBER to convert to AMBER format prmtop.
But I get the following error message from CHAMBER:

CMAP Found
Found 4 unique cmap types:
Type: 1 - 16 36 19 16 36 19 16 36
             C NH1 CT1 C NH1 CT1 C NH1

Type: 2 - 16 36 20 16 36 20 16 36
             C NH1 CT2 C NH1 CT2 C NH1

Type: 3 - 16 36 19 16 36 19 16 33
             C NH1 CT1 C NH1 CT1 C N

Type: 4 - 16 33 27 16 33 27 16 36
             C N CP1 C N CP1 C NH1

 ERROR: CMAP reading terminated reading entry 19 / 576

This might be incompatibility between the new c36 force field with modified
CMAP and CHAMBER. Can the CHAMBER developers provide some help to this
issue?
Thanks!


-- 
Jun Feng
Postdoc Fellow
Blake Mertz Research Group
Department of Chemistry
West Virginia University
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Mon Apr 11 2016 - 10:30:04 PDT
Custom Search