Coarse Grain Angle Parameter Issue

From: Nisler, Collin R. (nisler.1_at_buckeyemail.osu.edu)
Date: Fri Jun 17 2016 - 22:37:42 CDT

Hello, I am attempting to run a coarse grain simulation of a small transmembrane protein with a lipid patch. I followed the membrane protein and residue based coarse grain tutorials to prepare the system, and attempted to run minimization and equilibration using the parameter files from the coarse grain tutorial. When I attempted to run the simulation, I got the following error:

Charm++ fatal error:

FATAL ERROR: UNABLE TO FIND ANGLE PARAMETERS FOR SC4f SC4f SC4f (ATOMS 50 52 51)

Atoms 50, 51, and 52 are the following in the psf file:

      50 AP1 24 PHE SI1 SC4f 0.000000 45.0000 0
      51 AP1 24 PHE SI2 SC4f 0.000000 45.0000 0
      52 AP1 24 PHE SI3 SC4f 0.000000 45.0000 0

Does anyone have any thoughts on why this is happening? Thanks very much for your help.

Collin Nisler

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